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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.0868.2 glibc vulnerabilities 14 September 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: F5 Products Publisher: F5 Networks Operating System: Network Appliance Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Mitigation CVE Names: CVE-2021-3326 CVE-2020-29573 CVE-2019-25013 Reference: ESB-2021.0743 ESB-2021.0373 Original Bulletin: https://support.f5.com/csp/article/K68251873 https://support.f5.com/csp/article/K27238230 https://support.f5.com/csp/article/K44945790 Revision History: September 14 2021: Vendor updated versions known to be vulnerable March 11 2021: Initial Release - --------------------------BEGIN INCLUDED TEXT-------------------- K68251873: glibc vulnerability CVE-2019-25013 Original Publication Date: 11 Mar, 2021 Latest Publication Date: 13 Sep, 2021 Security Advisory Description The iconv feature in the GNU C Library (aka glibc or libc6) through 2.32, when processing invalid multi-byte input sequences in the EUC-KR encoding, may have a buffer over-read. (CVE-2019-25013) Impact A buffer over-read may lead to segmentation fault, causing system processes to stop responding and restart. The highest threat from this vulnerability is to system availability. Security Advisory Status F5 Product Development has assigned ID 988589 (BIG-IP), ID 991609 (BIG-IQ), and ID 1000453 (F5OS) to this vulnerability. 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 table. For more information about security advisory versioning, refer to K51812227: Understanding security advisory versioning. +-------------------+------+----------+----------+----------+------+----------+ | | |Versions |Fixes | |CVSSv3|Vulnerable| |Product |Branch|known to |introduced|Severity |score^|component | | | |be |in | |1 |or feature| | | |vulnerable| | | | | +-------------------+------+----------+----------+----------+------+----------+ | |16.x |16.0.0 - |None | | | | | | |16.1.0 | | | | | | +------+----------+----------+ | | | | |15.x |15.1.0 - |None | | | | | | |15.1.3 | | | | | |BIG-IP (LTM, AAM, +------+----------+----------+ | | | |Advanced WAF, AFM, |14.x |14.1.0 - |None | | | | |Analytics, APM, | |14.1.4 | | | | | |ASM, DDHD, DNS, +------+----------+----------+Medium |4.8 |glibc | |FPS, GTM, Link |13.x |13.1.0 - |None | | | | |Controller, PEM, | |13.1.4 | | | | | |SSLO) +------+----------+----------+ | | | | |12.x |12.1.0 - |None | | | | | | |12.1.5 | | | | | | +------+----------+----------+ | | | | |11.x |11.6.1 - |None | | | | | | |11.6.5 | | | | | +-------------------+------+----------+----------+----------+------+----------+ | |8.x |8.0.0 |None | | | | | +------+----------+----------+ | | | |BIG-IQ Centralized |7.x |7.0.0 - |None | | | | |Management | |7.1.0 | |Medium |4.8 |glibc | | +------+----------+----------+ | | | | |6.x |6.0.0 - |None | | | | | | |6.1.0 | | | | | +-------------------+------+----------+----------+----------+------+----------+ |F5OS |1.x |1.0.0 - |None |Medium |4.8 |glibc | | | |1.1.4 | | | | | +-------------------+------+----------+----------+----------+------+----------+ |Traffix SDC |5.x |None |Not |Not |None |None | | | | |applicable|vulnerable| | | +-------------------+------+----------+----------+----------+------+----------+ ^1The CVSSv3 score link takes you to a resource outside of AskF5, and it is possible that the document may be removed without our knowledge. Recommended Actions If you are running a version listed in the Versions known to be vulnerable column, you can eliminate this vulnerability by installing a version listed in the Fixes introduced in column. If the Fixes introduced in column does not list a version for your branch, then no update candidate currently exists for that branch and F5 recommends upgrading to a version with the fix (refer to the table). If the Fixes introduced in column lists a version prior to the one you are running, in the same branch, then your version should have the fix. Mitigation To mitigate this vulnerability for affected F5 products, you should permit management access to F5 products only over a secure network and limit shell access to only trusted users. For more information about securing access to BIG-IP and BIG-IQ systems, refer to K13309: Restricting access to the Configuration utility by source IP address (11.x - 16.x) and K13092: Overview of securing access to the BIG-IP system. Supplemental Information o K41942608: Overview of security advisory articles o K4602: Overview of the F5 security vulnerability response policy o K4918: Overview of the F5 critical issue hotfix policy o K9502: BIG-IP hotfix and point release matrix o K13123: Managing BIG-IP product hotfixes (11.x - 16.x) o K15106: Managing BIG-IQ product hotfixes o K15113: BIG-IQ hotfix and point release matrix o K167: Downloading software and firmware from F5 o K9970: Subscribing to email notifications regarding F5 products o K9957: Creating a custom RSS feed to view new and updated documents - -------------------------------------------------------------------------------- K27238230: glibc vulnerability CVE-2020-29573 Original Publication Date: 11 Mar, 2021 Latest Publication Date: 13 Sep, 2021 Security Advisory Description sysdeps/i386/ldbl2mpn.c in the GNU C Library (aka glibc or libc6) before 2.23 on x86 targets has a stack-based buffer overflow if the input to any of the printf family of functions is an 80-bit long double with a non-canonical bit pattern, as seen when passing a \x00\x04\x00\x00\x00\x00\x00\x00\x00\x04 value to sprintf. NOTE: the issue does not affect glibc by default in 2016 or later (i.e., 2.23 or later) because of commits made in 2015 for inlining of C99 math functions through use of GCC built-ins. In other words, the reference to 2.23 is intentional despite the mention of "Fixed for glibc 2.33" in the 26649 reference. (CVE-2020-29573) Impact Specially crafted values passed to certain glibc functions may create a stack-based overflow, potentially leading to an unexpected process restart. Security Advisory Status F5 Product Development has assigned ID 988549 (BIG-IP), ID 989405 (BIG-IQ), and ID 989461 (F5OS) to this vulnerability. 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 table. For more information about security advisory versioning, refer to K51812227: Understanding security advisory versioning. +-------------+------+-------------+----------+----------+------+-------------+ | | |Versions |Fixes | |CVSSv3|Vulnerable | |Product |Branch|known to be |introduced|Severity |score^|component or | | | |vulnerable |in | |1 |feature | +-------------+------+-------------+----------+----------+------+-------------+ | |16.x |16.0.0 - |None | | | | | | |16.1.0 | | | | | | +------+-------------+----------+ | | | | |15.x |15.1.0 - |None | | | | | | |15.1.3 | | | | | | +------+-------------+----------+ | | | | |14.x |14.1.0 - |None | | | | |BIG-IP (all | |14.1.4 | | | | | |modules) +------+-------------+----------+High |7.5 |glibc | | |13.x |13.1.0 - |None | | | | | | |13.1.4 | | | | | | +------+-------------+----------+ | | | | |12.x |12.1.0 - |None | | | | | | |12.1.6 | | | | | | +------+-------------+----------+ | | | | |11.x |11.6.1 - |None | | | | | | |11.6.5 | | | | | +-------------+------+-------------+----------+----------+------+-------------+ | |8.x |8.0.0 |None | | | | |BIG-IQ +------+-------------+----------+ | | | |Centralized |7.x |7.0.0 - 7.1.0|None |High |7.5 |glibc | |Management +------+-------------+----------+ | | | | |6.x |6.0.0 - 6.1.0|None | | | | +-------------+------+-------------+----------+----------+------+-------------+ |F5OS |1.x |1.0.0 - 1.1.4|None |High |7.5 |glibc | +-------------+------+-------------+----------+----------+------+-------------+ |Traffix SDC |5.x |None |Not |Not |None |None | | | | |applicable|vulnerable| | | +-------------+------+-------------+----------+----------+------+-------------+ ^1The CVSSv3 score link takes you to a resource outside of AskF5, and it is possible that the document may be removed without our knowledge. Recommended Actions If you are running a version listed in the Versions known to be vulnerable column, you can eliminate this vulnerability by installing a version listed in the Fixes introduced in column. If the Fixes introduced in column does not list a version for your branch, then no update candidate currently exists for that branch and F5 recommends upgrading to a version with the fix (refer to the table). If the Fixes introduced in column lists a version prior to the one you are running, in the same branch, then your version should have the fix. Mitigation To mitigate this vulnerability for affected F5 products, you should permit management access only to F5 products over a secure network and limit shell access to trusted users. For more information about securing access to BIG-IP and BIG-IQ systems, refer to K13309: Restricting access to the Configuration utility by source IP address (11.x - 16.x) and K13092: Overview of securing access to the BIG-IP system. Supplemental Information o K41942608: Overview of security advisory articles o K4602: Overview of the F5 security vulnerability response policy o K4918: Overview of the F5 critical issue hotfix policy o K9502: BIG-IP hotfix and point release matrix o K13123: Managing BIG-IP product hotfixes (11.x - 16.x) o K15106: Managing BIG-IQ product hotfixes o K15113: BIG-IQ hotfix and point release matrix o K167: Downloading software and firmware from F5 o K9970: Subscribing to email notifications regarding F5 products o K9957: Creating a custom RSS feed to view new and updated documents - -------------------------------------------------------------------------------- K44945790: glibc vulnerability CVE-2021-3326 Original Publication Date: 11 Mar, 2021 Security Advisory Description The iconv function in the GNU C Library (aka glibc or libc6) 2.32 and earlier, when processing invalid input sequences in the ISO-2022-JP-3 encoding, fails an assertion in the code path and aborts the program, potentially resulting in a denial of service. (CVE-2021-3326) Impact An attacker can exploit this vulnerability by crafting a sequence of characters to an application using the iconv function and cause the application to be terminated abnormally. Security Advisory Status F5 Product Development has assigned ID 999613 (BIG-IP) to this vulnerability. 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 table. For more information about security advisory versioning, refer to K51812227: Understanding security advisory versioning. +-------------------+------+----------+----------+----------+------+----------+ | | |Versions |Fixes | |CVSSv3|Vulnerable| |Product |Branch|known to |introduced|Severity |score^|component | | | |be |in | |1 |or feature| | | |vulnerable| | | | | +-------------------+------+----------+----------+----------+------+----------+ | |16.x |None |Not | | | | | | | |applicable| | | | | +------+----------+----------+ | | | | |15.x |None |Not | | | | | | | |applicable| | | | |BIG-IP (LTM, AAM, +------+----------+----------+ | | | |Advanced WAF, AFM, |14.x |None |Not | | | | |Analytics, APM, | | |applicable| | | | |ASM, DDHD, DNS, +------+----------+----------+High |7.5 |glibc | |FPS, GTM, Link |13.x |13.1.0 - |None | | | | |Controller, PEM, | |13.1.3 | | | | | |SSLO) +------+----------+----------+ | | | | |12.x |12.1.0 - |None | | | | | | |12.1.5 | | | | | | +------+----------+----------+ | | | | |11.x |11.6.1 - |None | | | | | | |11.6.5 | | | | | +-------------------+------+----------+----------+----------+------+----------+ | |8.x |None |Not | | | | | | | |applicable| | | | | +------+----------+----------+ | | | |BIG-IQ Centralized |7.x |None |Not |Not |None |None | |Management | | |applicable|vulnerable| | | | +------+----------+----------+ | | | | |6.x |None |Not | | | | | | | |applicable| | | | +-------------------+------+----------+----------+----------+------+----------+ |F5OS |1.x |None |Not |Not |None |None | | | | |applicable|vulnerable| | | +-------------------+------+----------+----------+----------+------+----------+ |Traffix SDC |5.x |None |Not |Not |None |None | | | | |applicable|vulnerable| | | +-------------------+------+----------+----------+----------+------+----------+ ^1The CVSSv3 score link takes you to a resource outside of AskF5, and it is possible that the document may be removed without our knowledge. Recommended Actions If you are running a version listed in the Versions known to be vulnerable column, you can eliminate this vulnerability by installing a version listed in the Fixes introduced in column. If the Fixes introduced in column does not list a version for your branch, then no update candidate currently exists for that branch and F5 recommends that you upgrade to a version with the fix (refer to the table). If the Fixes introduced in column lists a version prior to the one you are running, in the same branch, then your version should have the fix. Mitigation None To reduce the impact of this vulnerability, permit management access to F5 products only over a secure network, and limit access to only trusted users. For more information about securing access to BIG-IP systems, refer to K13309: Restricting access to the Configuration utility by source IP address (11.x - 16.x) and K13092: Overview of securing access to the BIG-IP system. Supplemental Information o K41942608: Overview of security advisory articles o K4602: Overview of the F5 security vulnerability response policy o K4918: Overview of the F5 critical issue hotfix policy o K9502: BIG-IP hotfix and point release matrix o K13123: Managing BIG-IP product hotfixes (11.x - 16.x) o K15106: Managing BIG-IQ product hotfixes o K15113: BIG-IQ hotfix and point release matrix o K48955220: Installing an OPSWAT Endpoint Security update on BIG-IP APM systems (11.4.x and later) o K167: Downloading software and firmware from F5 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. 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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: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBYUAuLuNLKJtyKPYoAQjS9Q//Se1ngaC3AHybplJire41oVpVZ6Y0a0WN H2cculgaHu24hPiMZS741bHoZ98eZ6/aLAoNIpeJ1wNDSuHSlTr/LOTuZOKfoU5R Cg+TkeB96q6gJEWDgyuhUAXwyeBLOU6rngFdtNPsC2oGC0hpsY0klGDtX+TU/4DJ zSqqAjsygiom8Oh+muP+jWBMzgBGS6VueHrVvqFbmVr3lu+eP28995jVl9/ZV3Bq n6SXQbO65bwZl4E0GnvPKbLZvZNFHwQhnbltkwB+qxE63b1iwJhYRW/oR0CgFCLv b+w50xM9594mQ4OvZ9bW3UFg1mAN6Xi6u+HqqYdV0d3nidPdmbyeQUJRAtWEA/41 NpwmmtYQYESw7jKEG14x/k9Z3Lk6/0bX1Aou5Z0jesrfcw+ahWGif+zqF3lLqlan R/3CKyvLycrz9NlUZDB9F/cr0BK1vOoc7uf6AJlD5EEUPM/HSyQZTfIcSZQ/o9RK s28Quv5msS6fve99qmv8tmD9kQPc3afy3ft4ukuPpmwcYowKkgUGnKAaYavlnjjs GBc5gfjL2IRRsbJo5PwzS640Cg6ehZpT6SqgwIBSCYuOyM1A6PviWjE8spXs4fh/ Gcwqe9JDuApcAgGGHXM6kaq/X7GQhVJeliJLtd6P9RV61NFkOijfQUuqKnBvrT5M HUS0nZUVrZs= =GG0S -----END PGP SIGNATURE-----