Security Bulletin - Web Gateway updates fix several vulnerabilities (CVE-2017-16525, CVE-2017-16531, CVE-2017-16533, CVE-2017-16535, CVE-2013-2853, CVE-2017-3735, and CVE-2017-3736)
Security Bulletins ID:
SB10211
Last Modified: 2022-05-04 15:18:44 Etc/GMT
Last Modified: 2022-05-04 15:18:44 Etc/GMT
Summary
First Published: November 29, 2017
Impact of Vulnerability: | CVE-2017-16525: Denial of service CVE-2017-16531: Denial of service CVE-2017-16533: Denial of service CVE-2017-16535: Denial of service CVE-2013-2853: CWE-707 Improper enforcement of message or data structure CVE-2017-3735: Out-of-bounds read CVE-2017-3736: Incorrect calculation |
CVE Numbers: | CVE-2017-16525 CVE-2017-16531 CVE-2017-16533 CVE-2017-16535 CVE-2013-2853 CVE-2017-3735 CVE-2017-3736 |
Severity Rating: | CVE-2017-16525: Medium CVE-2017-16531: Medium CVE-2017-16533: Medium CVE-2017-16535: Medium CVE-2013-2853: Medium CVE-2017-3735: Medium CVE-2017-3736: Medium |
CVSS v3 Base / Temporal Scores: | CVE-2017-16525: 4.6 / 4.4 CVE-2017-16531: 4.6 / 4.4 CVE-2017-16533: 4.6 / 4.4 CVE-2017-16535: 4.6 / 4.4 CVE-2013-2853: 4.0 / 3.6 CVE-2017-3735: 5.3 / 4.6 CVE-2017-3736: 5.9 / 4.9 |
Recommendations: | Install or update to Web Gateway 7.7.2.7 or later Install or update to Web Gateway 7.8.0.2 or later |
Security Bulletin Replacement: | None |
Affected Software: | Web Gateway 7.6 until and including 7.6.2.17 Web Gateway 7.7 until and including 7.7.2.6 Web Gateway 7.8 until and including 7.8.0.1 |
Location of Updated Software: | Product Downloads site |
To receive email notification when this article is updated, click Subscribe on the right side of the page. You must be logged on to subscribe.
Article contents:
Description
CVE-2017-16525:
The usb_serial_console_disconnect function in drivers/usb/serial/console.c in the Linux kernel before 4.13.8 allows local users to cause a denial of service (use-after-free and system crash) or possibly have unspecified other impact via a crafted USB device, related to disconnection and failed setup.
https://nvd.nist.gov/vuln/detail/CVE-2017-16525
CVE-2017-16531:
Drivers /usb/core/config.c in the Linux kernel before 4.13.6 allows local users to cause a denial of service (out-of-bounds read and system crash) or possibly have unspecified other impact via a crafted USB device, related to the USB_DT_INTERFACE_ASSOCIATION descriptor.
https://nvd.nist.gov/vuln/detail/CVE-2017-16531
CVE-2017-16533:
The usbhid_parse function in drivers/hid/usbhid/hid-core.c in the Linux kernel before 4.13.8 allows local users to cause a denial of service (out-of-bounds read and system crash) or possibly have unspecified other impact via a crafted USB device.
https://nvd.nist.gov/vuln/detail/CVE-2017-16533
CVE-2017-16535:
The usb_get_bos_descriptor function in drivers/usb/core/config.c in the Linux kernel before 4.13.10 allows local users to cause a denial of service (out-of-bounds read and system crash) or possibly have unspecified other impact via a crafted USB device.
https://nvd.nist.gov/vuln/detail/CVE-2017-16535
CVE-2013-2853:
The proxy component does not ensure that headers are terminated by "\r\n\r\n" (carriage return, newline, carriage return, newline), which allows man-in-the-middle attackers to have an unspecified impact via vectors that trigger header truncation.
https://nvd.nist.gov/vuln/detail/CVE-2013-2853
CVE-2017-3735:
While parsing an IPAddressFamily extension in an X.509 certificate, it is possible to do a one-byte overread. This would result in an incorrect text display of the certificate.
https://nvd.nist.gov/vuln/detail/CVE-2017-3735
CVE-2017-3736
A carry propagating bug in the x86_64 Montgomery squaring procedure in OpenSSL may lead to an attack against DH key exchange.
https://nvd.nist.gov/vuln/detail/CVE-2017-3736
The usb_serial_console_disconnect function in drivers/usb/serial/console.c in the Linux kernel before 4.13.8 allows local users to cause a denial of service (use-after-free and system crash) or possibly have unspecified other impact via a crafted USB device, related to disconnection and failed setup.
https://nvd.nist.gov/vuln/detail/CVE-2017-16525
CVE-2017-16531:
Drivers /usb/core/config.c in the Linux kernel before 4.13.6 allows local users to cause a denial of service (out-of-bounds read and system crash) or possibly have unspecified other impact via a crafted USB device, related to the USB_DT_INTERFACE_ASSOCIATION descriptor.
https://nvd.nist.gov/vuln/detail/CVE-2017-16531
CVE-2017-16533:
The usbhid_parse function in drivers/hid/usbhid/hid-core.c in the Linux kernel before 4.13.8 allows local users to cause a denial of service (out-of-bounds read and system crash) or possibly have unspecified other impact via a crafted USB device.
https://nvd.nist.gov/vuln/detail/CVE-2017-16533
CVE-2017-16535:
The usb_get_bos_descriptor function in drivers/usb/core/config.c in the Linux kernel before 4.13.10 allows local users to cause a denial of service (out-of-bounds read and system crash) or possibly have unspecified other impact via a crafted USB device.
https://nvd.nist.gov/vuln/detail/CVE-2017-16535
CVE-2013-2853:
The proxy component does not ensure that headers are terminated by "\r\n\r\n" (carriage return, newline, carriage return, newline), which allows man-in-the-middle attackers to have an unspecified impact via vectors that trigger header truncation.
https://nvd.nist.gov/vuln/detail/CVE-2013-2853
CVE-2017-3735:
While parsing an IPAddressFamily extension in an X.509 certificate, it is possible to do a one-byte overread. This would result in an incorrect text display of the certificate.
https://nvd.nist.gov/vuln/detail/CVE-2017-3735
CVE-2017-3736
A carry propagating bug in the x86_64 Montgomery squaring procedure in OpenSSL may lead to an attack against DH key exchange.
https://nvd.nist.gov/vuln/detail/CVE-2017-3736
Remediation
Go to the Product Downloads site and download the applicable product release:
Product | Type | Version | File Name | Release Date |
Web Gateway | Maintenance Release | 7.7.2.7 or later | mwgappl-7.7.2.7.0-24770.x86_64.iso | November 29, 2017 |
Web Gateway | Feature Release | 7.8.0.2 or later | mwgappl-7.8.0.2.0-24769.x86_64.iso | November 29, 2017 |
Download and Installation Instructions
For instructions to download product updates and hotfixes, see KB56057 - How to download Enterprise product updates and documentation. Review the Release Notes and the Installation Guide for instructions on how to install these updates. All documentation is available on the Product Documentation site.
Workaround
None. It is strongly encouraged to install the provided release specified in the Remediation table.
Acknowledgements
Vulnerability CVE-2017-16525 was reported by Red Hat: https://access.redhat.com/security/cve/cve-2017-16525.
Vulnerability CVE-2017-16531 was reported by Red Hat: https://access.redhat.com/security/cve/cve-2017-16531.
Vulnerability CVE-2017-16533 was reported by Red Hat: https://access.redhat.com/security/cve/cve-2017-16533.
Vulnerability CVE-2017-16535 was reported by Red Hat: https://access.redhat.com/security/cve/cve-2017-16535.
Vulnerability CVE-2013-2853 is described for Google Chrome: https://bugs.chromium.org/p/chromium/issues/detail?id=244260.
Vulnerabilities CVE-2017-3735 and CVE-2017-3736 were reported by OpenSSL: https://www.openssl.org/news/secadv/20171102.txt.
Vulnerability CVE-2017-16531 was reported by Red Hat: https://access.redhat.com/security/cve/cve-2017-16531.
Vulnerability CVE-2017-16533 was reported by Red Hat: https://access.redhat.com/security/cve/cve-2017-16533.
Vulnerability CVE-2017-16535 was reported by Red Hat: https://access.redhat.com/security/cve/cve-2017-16535.
Vulnerability CVE-2013-2853 is described for Google Chrome: https://bugs.chromium.org/p/chromium/issues/detail?id=244260.
Vulnerabilities CVE-2017-3735 and CVE-2017-3736 were reported by OpenSSL: https://www.openssl.org/news/secadv/20171102.txt.
Frequently Asked Questions (FAQs)
How do I know whether my product is vulnerable?
Use the following instructions for Appliance based products:What is CVSS?
CVSS, or Common Vulnerability Scoring System, is the result of the National Infrastructure Advisory Council’s effort to standardize a system of assessing the criticality of a vulnerability. This system offers an unbiased criticality score between 0 and 10 that customers can use to judge how critical a vulnerability is and plan accordingly. For more information, visit the CVSS website.
When calculating CVSS scores, we've adopted a philosophy that fosters consistency and repeatability. Our guiding principle for CVSS scoring is to score the exploit under consideration by itself. We consider only the immediate and direct impact of the exploit under consideration. We do not factor into a score any potential follow-on exploits that might be made possible by successful exploitation of the issue being scored
What are the CVSS scoring metrics that have been used?
CVE-2017-16525:
NOTE: The below CVSS version 3.0 vector was used to generate this score.
https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:H/RL:O/RC:C/MAV:P
CVE-2017-16531:
NOTE: The below CVSS version 3.0 vector was used to generate this score.
https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:H/RL:O/RC:C/MAV:P
CVE-2017-16533:
NOTE: The below CVSS version 3.0 vector was used to generate this score.
https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:H/RL:O/RC:C/MAV:P
CVE-2017-16535:
NOTE: The below CVSS version 3.0 vector was used to generate this score.
https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:H/RL:O/RC:C/MAV:P
CVE-2013-2853:
NOTE: The below CVSS version 3.0 vector was used to generate this score.
https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N/E:P/RL:O/RC:C
CVE-2017-3735:
NOTE: The below CVSS version 3.0 vector was used to generate this score.
https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RL:O/RC:R
CVE-2017-3736:
NOTE: The below CVSS version 3.0 vector was used to generate this score.
https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:R
Where can I find a list of all Security Bulletins?
All Security Bulletins are published on our Knowledge Center. Security Bulletins are retired (removed) once a product is both End of Sale and End of Support (End of Life).
How do I report a product vulnerability to you?
If you have information about a security issue or vulnerability with a product, follow the instructions provided in KB95563 - Report a vulnerability.
How do you respond to this and any other reported security flaws?
Our key priority is the security of our customers. If a vulnerability is found within any of our software or services, we work closely with the relevant security software development team to ensure the rapid and effective development of a fix and communication plan.
We only publish Security Bulletins if they include something actionable such as a workaround, mitigation, version update, or hotfix. Otherwise, we would simply be informing the hacker community that our products are a target, putting our customers at greater risk. For products that are updated automatically, a non-actionable Security Bulletin might be published to acknowledge the discoverer.
To view our PSIRT policy, see KB95564 - About PSIRT.
Use the following instructions for Appliance based products:
- Open the Administrator's User Interface (UI).
- Click the About link. The product version is displayed.
CVSS, or Common Vulnerability Scoring System, is the result of the National Infrastructure Advisory Council’s effort to standardize a system of assessing the criticality of a vulnerability. This system offers an unbiased criticality score between 0 and 10 that customers can use to judge how critical a vulnerability is and plan accordingly. For more information, visit the CVSS website.
When calculating CVSS scores, we've adopted a philosophy that fosters consistency and repeatability. Our guiding principle for CVSS scoring is to score the exploit under consideration by itself. We consider only the immediate and direct impact of the exploit under consideration. We do not factor into a score any potential follow-on exploits that might be made possible by successful exploitation of the issue being scored
Base Score | 4.6 |
Attack Vector (AV) | Physical (P) |
Attack Complexity (AC) | Low (L) |
Privileges Required (PR) | None (N) |
User Interaction (UI) | None (N) |
Scope (S) | Unchanged (U) |
Confidentiality (C) | None (N) |
Integrity (I) | None (N) |
Availability (A) | High (H) |
Temporal Score (Overall) | 4.4 |
Exploitability (E) | High (H) |
Remediation Level (RL) | Official Fix (O) |
Report Confidence (RC) | Confirmed (C) |
NOTE: The below CVSS version 3.0 vector was used to generate this score.
https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:H/RL:O/RC:C/MAV:P
CVE-2017-16531:
Base Score | 4.6 |
Attack Vector (AV) | Physical (P) |
Attack Complexity (AC) | Low (L) |
Privileges Required (PR) | None (N) |
User Interaction (UI) | None (N) |
Scope (S) | Unchanged (U) |
Confidentiality (C) | None (N) |
Integrity (I) | None (N) |
Availability (A) | High (H) |
Temporal Score (Overall) | 4.4 |
Exploitability (E) | High (H) |
Remediation Level (RL) | Official Fix (O) |
Report Confidence (RC) | Confirmed (C) |
NOTE: The below CVSS version 3.0 vector was used to generate this score.
https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:H/RL:O/RC:C/MAV:P
Base Score | 4.6 |
Attack Vector (AV) | Physical (P) |
Attack Complexity (AC) | Low (L) |
Privileges Required (PR) | None (N) |
User Interaction (UI) | None (N) |
Scope (S) | Unchanged (U) |
Confidentiality (C) | None (N) |
Integrity (I) | None (N) |
Availability (A) | High (H) |
Temporal Score (Overall) | 4.4 |
Exploitability (E) | High (H) |
Remediation Level (RL) | Official Fix (O) |
Report Confidence (RC) | Confirmed (C) |
NOTE: The below CVSS version 3.0 vector was used to generate this score.
https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:H/RL:O/RC:C/MAV:P
Base Score | 4.6 |
Attack Vector (AV) | Physical (P) |
Attack Complexity (AC) | Low (L) |
Privileges Required (PR) | None (N) |
User Interaction (UI) | None (N) |
Scope (S) | Unchanged (U) |
Confidentiality (C) | None (N) |
Integrity (I) | None (N) |
Availability (A) | High (H) |
Temporal Score (Overall) | 4.4 |
Exploitability (E) | High (H) |
Remediation Level (RL) | Official Fix (O) |
Report Confidence (RC) | Confirmed (C) |
NOTE: The below CVSS version 3.0 vector was used to generate this score.
https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:H/RL:O/RC:C/MAV:P
Base Score | 4.0 |
Attack Vector (AV) | Network (N) |
Attack Complexity (AC) | High (H) |
Privileges Required (PR) | None (N) |
User Interaction (UI) | None (N) |
Scope (S) | Changed (C) |
Confidentiality (C) | Low (L) |
Integrity (I) | None (N) |
Availability (A) | High (H) |
Temporal Score (Overall) | 3.6 |
Exploitability (E) | Proof-Of-Concept (P) |
Remediation Level (RL) | Official Fix (O) |
Report Confidence (RC) | Confirmed (C) |
NOTE: The below CVSS version 3.0 vector was used to generate this score.
https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N/E:P/RL:O/RC:C
Base Score | 5.3 |
Attack Vector (AV) | Network (N) |
Attack Complexity (AC) | Low (L) |
Privileges Required (PR) | None (N) |
User Interaction (UI) | None (N) |
Scope (S) | Unchanged (U) |
Confidentiality (C) | None (N) |
Integrity (I) | Low (L) |
Availability (A) | None (N) |
Temporal Score (Overall) | 4.6 |
Exploitability (E) | Proof-Of-Concept (P) |
Remediation Level (RL) | Official Fix (O) |
Report Confidence (RC) | Reasonable (R) |
NOTE: The below CVSS version 3.0 vector was used to generate this score.
https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RL:O/RC:R
Base Score | 5.9 |
Attack Vector (AV) | Network (N) |
Attack Complexity (AC) | High (H) |
Privileges Required (PR) | None (N) |
User Interaction (UI) | None (N) |
Scope (S) | Unchanged (U) |
Confidentiality (C) | High (H) |
Integrity (I) | None (N) |
Availability (A) | None (N) |
Temporal Score (Overall) | 4.9 |
Exploitability (E) | Unproven (U) |
Remediation Level (RL) | Official Fix (O) |
Report Confidence (RC) | Reasonable (R) |
NOTE: The below CVSS version 3.0 vector was used to generate this score.
https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:R
Where can I find a list of all Security Bulletins?
All Security Bulletins are published on our Knowledge Center. Security Bulletins are retired (removed) once a product is both End of Sale and End of Support (End of Life).
How do I report a product vulnerability to you?
If you have information about a security issue or vulnerability with a product, follow the instructions provided in KB95563 - Report a vulnerability.
How do you respond to this and any other reported security flaws?
Our key priority is the security of our customers. If a vulnerability is found within any of our software or services, we work closely with the relevant security software development team to ensure the rapid and effective development of a fix and communication plan.
We only publish Security Bulletins if they include something actionable such as a workaround, mitigation, version update, or hotfix. Otherwise, we would simply be informing the hacker community that our products are a target, putting our customers at greater risk. For products that are updated automatically, a non-actionable Security Bulletin might be published to acknowledge the discoverer.
To view our PSIRT policy, see KB95564 - About PSIRT.
Resources
To contact Technical Support, go to the Create a Service Request page and log on to the ServicePortal.
- If you are a registered user, type your User ID and Password, and then click Log In.
- If you are not a registered user, click Register and complete the fields to have your password and instructions emailed to you.
Disclaimer
The information provided in this Security Bulletin is provided as is without warranty of any kind. We disclaim all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall we or our suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits, or special damages, even if we or our suppliers have been advised of the possibility of such damages. Some states don't allow the exclusion or limitation of liability for consequential or incidental damages, so the preceding limitation may not apply.
Any future product release dates mentioned in this Security Bulletin are intended to outline our general product direction, and they shouldn't be relied on in making a purchasing decision. The product release dates are for information purposes only, and may not be incorporated into any contract. The product release dates aren't a commitment, promise, or legal obligation to deliver any material, code, or functionality. The development, release, and timing of any features or functionality described for our products remain at our sole discretion and may be changed or canceled at any time.
Any future product release dates mentioned in this Security Bulletin are intended to outline our general product direction, and they shouldn't be relied on in making a purchasing decision. The product release dates are for information purposes only, and may not be incorporated into any contract. The product release dates aren't a commitment, promise, or legal obligation to deliver any material, code, or functionality. The development, release, and timing of any features or functionality described for our products remain at our sole discretion and may be changed or canceled at any time.