SUSE glibc Important Local Elevation and Crash Threats 2026-4656

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## This update for glibc fixes the following issues: * CVE-2026-8674: reachable assert in `resolv/resolv_conf.c:update_from_conf` allows an attacker in a local network to trigger a process crash (bsc#1281297). * CVE-2026-86805: TOCTOU race condition in the dynamic loader allows local attackers to escalate privileges (bsc#1282509). * CVE-2026-89092: nscd stack overflow leads to degraded DNS resolution (bsc#1282449). * CVE-2026-97399: one byte out-of-bounds read via function `strncasecmp` on Power8 can lead to a program crash (bsc#1283147). ## Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: * SUSE Linux Enterprise Server for SAP Applications 15 SP6

## This update for glibc fixes the following issues: * CVE-2026-8674: reachable assert in `resolv/resolv_conf.c:update_from_conf` allows an attacker in a local network to trigger a process crash (bsc#1281297). * CVE-2026-86805: TOCTOU race condition in the dynamic loader allows local attackers to escalate privileges (bsc#1282509). * CVE-2026-89092: nscd stack overflow leads to degraded DNS resolution (bsc#1282449). * CVE-2026-97399: one byte out-of-bounds read via function `strncasecmp` on Power8 can lead to a program crash (bsc#1283147). ## Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: * SUSE Linux Enterprise Server for SAP Applications 15 SP6

* CVE-2026-8674 ( SUSE ): 6.0

CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

* CVE-2026-8674 ( SUSE ): 5.3 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-8674 ( NVD ): 5.3 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-86805 ( SUSE ): 7.3

CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

* CVE-2026-86805 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2026-86805 ( NVD ): 6.3 CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:L

* CVE-2026-89092 ( SUSE ): 6.0

CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Announcement ID: SUSE-SU-2026:4656-1 Release Date: 2026-10-14T07:48:58Z Rating: important

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