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SUSE gawk Moderate Buffer Overflow and Memory Issues Fixed 2026-22767-1

suse
Calendar Grey July 22, 2026
Scroller Suse
SUSE releases a security update for gawk, addressing moderate severity heap and buffer issues. Install updates promptly.
A security update for gawk addresses three vulnerabilities in SUSE Linux Micro 6.2, including use-after-free issues and a buffer overflow, which can lead to program crashes.

Summary

## This update for gawk fixes the following issues: * CVE-2026-40467: use-after-free vulnerability within the do_getline_redir() routine could lead to a program crash (bsc#1271351). * CVE-2026-40468: use-after-free vulnerability in gawk's "io.c" file could permit heap metadata manipulation and host memory exhaustion (bsc#1271352). * CVE-2026-40553: buffer overflow in the ftype() routine of the readdir extension could trigger a program crash (bsc#1271354). ## 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 Micro 6.2 zypper in -t patch SUSE-SL-Micro-6.2-1303=1 ## Package List: * SUSE Linux Micro 6.2 (aarch64 ppc64le s390x x86_64)

Topics%20covered

Topics Covered

security advisory moderate buffer overflow SuSE gawk heap metadata

References

* bsc#1271351

* bsc#1271352

* bsc#1271354

Cross-

* CVE-2026-40467

* CVE-2026-40468

* CVE-2026-40553

CVSS scores:

* CVE-2026-40467 ( SUSE ): 5.1

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

* CVE-2026-40467 ( SUSE ): 4.0 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

* CVE-2026-40467 ( NVD ): 5.1

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

* CVE-2026-40467 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-40468 ( SUSE ): 2.1

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

* CVE-2026-40468 ( SUSE ): 4.0 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Severity
moderate
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:22767-1
Release Date: 2026-07-20T13:43:46Z
Rating: moderate

Topics%20covered

Topics Covered

security advisory moderate buffer overflow SuSE gawk heap metadata

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