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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2023.3741 Security update for the Linux Kernel (Live Patch 30 for SLE 15 SP2) 30 June 2023 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Linux Kernel (Live Patch 30 for SLE 15 SP2) Publisher: SUSE Operating System: SUSE Resolution: Patch/Upgrade CVE Names: CVE-2023-31436 CVE-2023-28466 CVE-2023-23455 CVE-2023-1390 CVE-2022-4744 Original Bulletin: https://www.suse.com/support/update/announcement/2023/suse-su-20232695-1 Comment: CVSS (Max): 7.8 CVE-2023-28466 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) CVSS Source: SUSE Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - --------------------------BEGIN INCLUDED TEXT-------------------- Security update for the Linux Kernel (Live Patch 30 for SLE 15 SP2) Announcement ID: SUSE-SU-2023:2695-1 Rating: important o #1207189 o #1209672 References: o #1210452 o #1210779 o #1210989 o CVE-2022-4744 o CVE-2023-1390 Cross-References: o CVE-2023-23455 o CVE-2023-28466 o CVE-2023-31436 o CVE-2022-4744 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/ S:U/C:H/I:H/A:H o CVE-2022-4744 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/ S:U/C:H/I:H/A:H o CVE-2023-1390 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2023-1390 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2023-23455 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N /S:U/C:H/I:H/A:H CVSS scores: o CVE-2023-23455 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/ S:U/C:N/I:N/A:H o CVE-2023-28466 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N /S:U/C:H/I:H/A:H o CVE-2023-28466 ( NVD ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/ S:U/C:H/I:H/A:H o CVE-2023-31436 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N /S:U/C:H/I:H/A:H o CVE-2023-31436 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/ S:U/C:H/I:H/A:H o SUSE Linux Enterprise High Performance Computing 15 SP2 Affected o SUSE Linux Enterprise Live Patching 15-SP2 Products: o SUSE Linux Enterprise Server 15 SP2 o SUSE Linux Enterprise Server for SAP Applications 15 SP2 An update that solves five vulnerabilities can now be installed. Description: This update for the Linux Kernel 5.3.18-150200_24_129 fixes several issues. The following security issues were fixed: o CVE-2022-4744: Fixed double-free that could lead to DoS or privilege escalation in TUN/TAP device driver functionality (bsc#1209672). o CVE-2023-23455: Fixed a denial of service inside atm_tc_enqueue in net/ sched/sch_atm.c because of type confusion (non-negative numbers can sometimes indicate a TC_ACT_SHOT condition rather than valid classification results) (bsc#1207189). o CVE-2023-31436: Fixed an out-of-bounds write in qfq_change_class() because lmax can exceed QFQ_MIN_LMAX (bsc#1210989). o CVE-2023-1390: Fixed remote DoS vulnerability in tipc_link_xmit() (bsc# 1210779). o CVE-2023-28466: Fixed race condition that could lead to use-after-free or NULL pointer dereference in do_tls_getsockopt in net/tls/tls_main.c (bsc# 1210452). Patch Instructions: To install this SUSE Important update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: o SUSE Linux Enterprise Live Patching 15-SP2 zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP2-2023-2695=1 SUSE-SLE-Module-Live-Patching-15-SP2-2023-2696=1 Package List: o SUSE Linux Enterprise Live Patching 15-SP2 (ppc64le s390x x86_64) kernel-livepatch-SLE15-SP2_Update_30-debugsource-9-150200.2.2 kernel-livepatch-SLE15-SP2_Update_31-debugsource-9-150200.2.2 kernel-livepatch-5_3_18-150200_24_134-default-debuginfo-9-150200.2.2 kernel-livepatch-5_3_18-150200_24_129-default-9-150200.2.2 kernel-livepatch-5_3_18-150200_24_129-default-debuginfo-9-150200.2.2 kernel-livepatch-5_3_18-150200_24_134-default-9-150200.2.2 References: o https://www.suse.com/security/cve/CVE-2022-4744.html o https://www.suse.com/security/cve/CVE-2023-1390.html o https://www.suse.com/security/cve/CVE-2023-23455.html o https://www.suse.com/security/cve/CVE-2023-28466.html o https://www.suse.com/security/cve/CVE-2023-31436.html o https://bugzilla.suse.com/show_bug.cgiid=1207189 o https://bugzilla.suse.com/show_bug.cgiid=1209672 o https://bugzilla.suse.com/show_bug.cgiid=1210452 o https://bugzilla.suse.com/show_bug.cgiid=1210779 o https://bugzilla.suse.com/show_bug.cgiid=1210989 - --------------------------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: https://auscert.org.au/gpg-key/ iQIVAwUBZJ5DSskNZI30y1K9AQhnEA/6AvDpdT1xO8mXrruRDd64sFx7iYX2ztJX 8k8deHzKmwlkOdhfwZXxuXuzIqBqTCIJEZQ132X8ALP37P4ijmZBNNi3dmdFuCj9 cvSKEQThCn2Deg71dqO6VU1y8cUwp5c8Xap1S29qlFUS64KYZE0urrpFi5/0S72+ MlSfdPWG6pH/LMnJOLKQMv+csEcP+5EdDCoa6QaCLfpwxdaRN1H3q5R0/zupwAIG PijnMgHh2myWjStX2cAooixe6zyFtlMiQ7CnXTlosW/9Kf+SCXL500flVbqCDWZe OnOOP3w6VEYEKVTieX4ak1Xq9q1nea2yxpV69BLupMjT058kY+27boAqQ9vT7bSB 45U8qLSTaKfPJ/jKYfNW5xX3cGnwIC4wQYE5/B6V6KvmxX1CYCX4MNnwmw69isxU R+ybeQRGx8BfNkYJ9EaVFZn/0bIijSKnFr61GQtt4kNERlaeFSBZIksc+eO9UwUo aOjMUWbD7zk5/jXJy3ZBMdWEZd2zypne1X9rvMfIU7wo9ezh4ZJv5B7pOQ8tYEvf fbFViODjVbOljy5uvWIrcNDREx9Y4pWdY1ZksJg9n8LT67qp8GTIfT94xByz4s5v kkRuhaZHOOuNMlU+A7enKGDflQ4dUuCIEyokMZThWo7EQnsOuDz4X1FMJuka318D jRh+GgStcJU= =8A/t -----END PGP SIGNATURE-----