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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2017.3075 McAfee 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) 1 December 2017 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Web Gateway Publisher: Mcafee Operating System: Network Appliance Impact/Access: Provide Misleading Information -- Remote/Unauthenticated Access Confidential Data -- Remote/Unauthenticated Denial of Service -- Console/Physical Reduced Security -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2017-16535 CVE-2017-16533 CVE-2017-16531 CVE-2017-16525 CVE-2017-3736 CVE-2017-3735 CVE-2013-2853 Reference: ASB-2017.0202 ASB-2013.0083 ESB-2017.3028 ESB-2017.2874 Original Bulletin: https://kc.mcafee.com/corporate/index?page=content&id=SB10211 - --------------------------BEGIN INCLUDED TEXT-------------------- McAfee 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: 11/29/2017 Summary First Published: November 29, 2017 CVE-2017-16525: Denial of service CVE-2017-16531: Denial of service CVE-2017-16533: Denial of service Impact of Vulnerability: 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-2017-16525 CVE-2017-16531 CVE-2017-16533 CVE Numbers: CVE-2017-16535 CVE-2013-2853 CVE-2017-3735 CVE-2017-3736 CVE-2017-16525: Medium CVE-2017-16531: Medium CVE-2017-16533: Medium Severity Rating: CVE-2017-16535: Medium CVE-2013-2853: Medium CVE-2017-3735: Medium CVE-2017-3736: Medium CVE-2017-16525: 4.6 / 4.4 CVE-2017-16531: 4.6 / 4.4 CVSS v3 Base / Temporal CVE-2017-16533: 4.6 / 4.4 Scores: 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 Install or update to McAfee Web Gateway (MWG) 7.7.2.7 or Recommendations: later Install or update to MWG 7.8.0.2 or later Security Bulletin None Replacement: MWG 7.6 until and including MWG 7.6.2.17 Affected Software: MWG 7.7 until and including MWG 7.7.2.6 MWG 7.8 until and including MWG 7.8.0.1 Location of Updated http://www.mcafee.com/us/downloads/downloads.aspx Software: Article contents: Vulnerability Description Remediation Workaround Acknowledgements Frequently Asked Questions (FAQs) Resources Disclaimer 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 Remediation Go to the Product Downloads site and download the applicable product release: +---------+-------------+---------+------------------------------------+----------+ | Product | Type | Version | File Name | Release | | | | | | Date | +---------+-------------+---------+------------------------------------+----------+ | Web | Maintenance | 7.7.2.7 | | November | | Gateway | Release | or | mwgappl-7.7.2.7.0-24770.x86_64.iso | 29, 2017 | | | | later | | | +---------+-------------+---------+------------------------------------+----------+ | Web | Feature | 7.8.0.2 | | November | | Gateway | Release | or | mwgappl-7.8.0.2.0-24769.x86_64.iso | 29, 2017 | | | | later | | | +---------+-------------+---------+------------------------------------+----------+ Download and Installation Instructions See KB56057 for instructions on how to download McAfee products, documentation, security updates, patches, and hotfixes. Review the Release Notes and the Installation Guide, which you can download from the Documentation tab, for instructions on how to install these updates. 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. Frequently Asked Questions (FAQs) How do I know whether my McAfee product is vulnerable or not? Use the following instructions for Appliance based products: Open the Administrator's User Interface (UI). Click the About link. The product version is displayed. What is CVSS? CVSS, or Common Vulnerability Scoring System, is the result of the National Infrastructure Advisory Councils 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 at: http://www.first.org/cvss/. When calculating CVSS scores, McAfee has 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: +---------------------------+------------------+ | 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 CVE-2017-16533: +---------------------------+------------------+ | 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-2017-16535: +---------------------------+------------------+ | 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-2013-2853: +---------------------------+----------------------+ | 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 CVE-2017-3735: +---------------------------+----------------------+ | 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 CVE-2017-3736: +---------------------------+------------------+ | 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 or how do I report a product vulnerability? 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The development, release, and timing of any features or functionality described for our products remains at our sole discretion and may be changed or cancelled at any time. - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. 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Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). 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