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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2022.5477.5 K44030142: OpenSSL vulnerabilities CVE-2022-3786 and CVE-2022-3602 11 November 2022 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: F5 Products Publisher: F5 Networks Operating System: Network Appliance Resolution: None CVE Names: CVE-2022-3786 CVE-2022-3602 Original Bulletin: https://support.f5.com/csp/article/K44030142 Comment: CVSS (Max): 7.5 CVE-2022-3786 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) CVSS Source: NVD Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Revision History: November 11 2022: Updated Subject to include CVSS Score November 10 2022: F5 updated severity of the vulnerability November 3 2022: Vendor updated bulletin November 2 2022: F5 updated advisory with CVE details and product vulnerability details November 1 2022: Initial Release - --------------------------BEGIN INCLUDED TEXT-------------------- K44030142: OpenSSL vulnerabilities CVE-2022-3786 and CVE-2022-3602 Original Publication Date: 29 Oct, 2022 Latest Publication Date: 10 Nov, 2022 Security Advisory Description o CVE-2022-3786 A buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. Note that this occurs after certificate chain signature verification and requires either a CA to have signed a malicious certificate or for an application to continue certificate verification despite failure to construct a path to a trusted issuer. An attacker can craft a malicious email address in a certificate to overflow an arbitrary number of bytes containing the `.' character (decimal 46) on the stack. This buffer overflow could result in a crash (causing a denial of service). o CVE-2022-3602 A buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. Note that this occurs after certificate chain signature verification and requires either a CA to have signed the malicious certificate or for the application to continue certificate verification despite failure to construct a path to a trusted issuer. An attacker can craft a malicious email address to overflow four attacker-controlled bytes on the stack. This buffer overflow could result in a crash (causing a denial of service) or potentially remote code execution. Note: For more details about CVE-2022-3786 and CVE-2022-3602, refer to OpenSSL Security Advisory [01 November 2022]. Impact For products with None in the Versions known to be vulnerable column, there is no impact. For products with ** in the various columns, F5 will update this article after confirming the required information. F5 Support has no additional information about this issue. Security Advisory Status To determine if your product and version have been evaluated for this vulnerability, refer to the Applies to (see versions) box. To determine if your release is known to be vulnerable, the components or features that are affected by the vulnerability, and for information about releases, point releases, or hotfixes that address the vulnerability, refer to the following tables. You can also use iHealth to diagnose a vulnerability for BIG-IP and BIG-IQ systems. For more information about using iHealth, refer to K27404821: Using F5 iHealth to diagnose vulnerabilities. For more information about security advisory versioning, refer to K51812227: Understanding security advisory versioning. In this section o BIG-IP and BIG-IQ o F5OS o NGINX o Other products BIG-IP and BIG-IQ BIG-IP is Not vulnerable because OpenSSL 3.x is not included in BIG-IP releases. To see the OpenSSL versions that run on BIG-IP systems, refer to K11398383: BIG-IP third-party software matrix. If the preceding article does not apply to your version, follow the links in the article to the third-party software article for your BIG-IP release. Note: After a fix is introduced for a given minor branch, that fix applies to all subsequent maintenance and point releases for that branch, and no additional fixes for that branch will be listed in the table. For example, when a fix is introduced in 14.1.2.3, the fix also applies to 14.1.2.4, and all later 14.1.x releases (14.1.3.x., 14.1.4.x). For more information, refer to K51812227: Understanding security advisory versioning. +------------+------+--------------+----------+----------+------+-------------+ | | |Versions known|Fixes | |CVSSv3|Vulnerable | |Product |Branch|to be |introduced|Severity |score^|component or | | | |vulnerable^1 |in | |2 |feature | +------------+------+--------------+----------+----------+------+-------------+ |BIG-IP (all |All |None |Not |Not |None |None | |modules) | | |applicable|vulnerable| | | +------------+------+--------------+----------+----------+------+-------------+ |BIG-IP SPK |1.x |** |** |** |** |** | +------------+------+--------------+----------+----------+------+-------------+ |BIG-IQ | | |Not |Not | | | |Centralized |All |None |applicable|vulnerable|None |None | |Management | | | | | | | +------------+------+--------------+----------+----------+------+-------------+ ^1F5 evaluates only software versions that have not yet reached the End of Technical Support (EoTS) phase of their lifecycle. For more information, refer to the Security hotfixes section of K4602: Overview of the F5 security vulnerability response policy. ^2The CVSSv3 score link takes you to a resource outside of AskF5, and it is possible that the document may be removed without our knowledge. **Confirmation of vulnerability or non-vulnerability is not presently available. F5 will update this article with the most current information as soon as it has been confirmed. F5 Support has no additional information on this issue. F5OS +-------+------+----------------+----------+----------+-------+---------------+ | | |Versions known |Fixes | |CVSSv3 |Vulnerable | |Product|Branch|to be vulnerable|introduced|Severity |score^2|component or | | | |^1 |in | | |feature | +-------+------+----------------+----------+----------+-------+---------------+ |F5OS-A |All |None |Not |Not |None |None | | | | |applicable|vulnerable| | | +-------+------+----------------+----------+----------+-------+---------------+ |F5OS-C |All |None |Not |Not |None |None | | | | |applicable|vulnerable| | | +-------+------+----------------+----------+----------+-------+---------------+ ^1F5 evaluates only software versions that have not yet reached the End of Technical Support (EoTS) phase of their lifecycle. For more information, refer to the Security hotfixes section of K4602: Overview of the F5 security vulnerability response policy. ^2The CVSSv3 score link takes you to a resource outside of AskF5, and it is possible that the document may be removed without our knowledge. NGINX +---------+------+---------------+----------+----------+------+---------------+ | | |Versions known |Fixes | |CVSSv3|Vulnerable | |Product |Branch|to be |introduced|Severity |score^|component or | | | |vulnerable^1 |in | |2 |feature | +---------+------+---------------+----------+----------+------+---------------+ |NGINX | | |Not |Not | | | |(all |All |None |applicable|vulnerable|None |None | |products)| | | | | | | +---------+------+---------------+----------+----------+------+---------------+ ^1F5 evaluates only software versions that have not yet reached the End of Technical Support (EoTS) phase of their lifecycle. For more information, refer to the Security hotfixes section of K4602: Overview of the F5 security vulnerability response policy. ^2The CVSSv3 score link takes you to a resource outside of AskF5, and it is possible that the document may be removed without our knowledge. Other products +-------+------+----------------+----------+----------+-------+---------------+ | | |Versions known |Fixes | |CVSSv3 |Vulnerable | |Product|Branch|to be vulnerable|introduced|Severity |score^2|component or | | | |^1 |in | | |feature | +-------+------+----------------+----------+----------+-------+---------------+ |Traffix|All |None |Not |Not |None |None | |SDC | | |applicable|vulnerable| | | +-------+------+----------------+----------+----------+-------+---------------+ ^1F5 evaluates only software versions that have not yet reached the End of Technical Support (EoTS) phase of their lifecycle. For more information, refer to the Security hotfixes section of K4602: Overview of the F5 security vulnerability response policy. ^2The CVSSv3 score link takes you to a resource outside of AskF5, and it is possible that the document may be removed without our knowledge. Supplemental Information o K41942608: Overview of security advisory articles o K12201527: Overview of Quarterly Security Notifications o K51812227: Understanding security advisory versioning o K4602: Overview of the F5 security vulnerability response policy o K4918: Overview of the F5 critical issue hotfix policy o K8986: F5 product support policies o K9970: Subscribing to email notifications regarding F5 products o K9957: Creating a custom RSS feed to view new and updated documents - --------------------------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. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. 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). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: https://auscert.org.au/gpg-key/ iQIVAwUBY23ruMkNZI30y1K9AQjmCg//Zi7+XR3Gha6sb4CdhSpK0pGSc24XfOxe R5SEMf6asmIXINgW0c05FGbcLxejN0T0TTbIEURYhZY/i/hds2mLKsXAU/6Rp255 LelwGyyPo95P4QWynkSv9EGTjp9vYF0kBS1g0+k/2+hNFlK3Fi/cBnrKETmLCwPD aP12xWkOo3Qrvc6H2pqk9SKt9iSoWBxi0MktUQhx9eUeNR/xyF1FFvtVGt6zEuZe Do1OkNarcOddilmJbO2Q/EEgjUs2ucbUoaolHj0Lu5RK74hxKFuqh+fE/F6kiavt jJSoVq5Wdcye6dq6PGXdty8rJp6R5c0uh4YbhN1FY/632A8bjDJ/ZBiwkW5U9Fyo GM904wowT/qfjTdP6Yz6cCM5wsTh434fU1yI0BdE2u1L6x3p72/3TkmpTg0jW2V6 YSq22ePtMn9kXP1WgSrgv5gU3geJkBFvwPJkF/PghAgC3TUokiJdD4NnJ7c55uwB extAAaG/UX9uhHGuxPidIc4MBLuyN0CwUV10TDlN2MyRYU5y8vL0sxzzqDwtc36Z 9IiSgdRN7bBwAAJeIb2zMEe4cK/+ygew7pKfEcW//JDprO+K1fo9jMZVN9X+csZp 7UYr9ZgycIh1j4De/aV0Gt6WaDcI7rT88cS6hS1KvjKjZubvdAFljEpgPkjvT+8i KcXKLMphqjk= =Pd50 -----END PGP SIGNATURE-----