Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
A vulnerability in the GNU C Library (glibc) affects the wordexp function when used with the WRDE_APPEND flag. This flaw can cause the function to return invalid memory in the we_wordv member, which when freed by wordfree, may lead to a process abort and denial of service. The issue requires local code execution with specific function calls and impacts applications using this pattern. Red Hat has released an update addressing this issue in their Hardened Images RPMs.
AI Analysis
Technical Summary
CVE-2026-6368 is a flaw in glibc's wordexp function where using the WRDE_APPEND flag causes the interface to return invalid memory in the we_wordv member. Subsequent processing by wordfree can cause the process to abort, resulting in a denial of service. This vulnerability requires local attacker or application interaction with the specific wordexp and wordfree calls. Red Hat has issued a security advisory with updated RPM packages including glibc-2.43-8.1.hum1 to fix this issue. The vulnerability is rated with moderate impact and affects Red Hat Hardened Images RPMs on aarch64 and x86_64 architectures.
Potential Impact
The vulnerability can cause a denial of service by crashing processes that use the vulnerable wordexp function with the WRDE_APPEND flag followed by wordfree. There is no impact on confidentiality or integrity. Exploitation requires local code execution with low privileges and no user interaction. No known exploits are reported in the wild.
Mitigation Recommendations
A fix is available from Red Hat in the form of updated RPM packages (glibc-2.43-8.1.hum1 and related). Users of affected Red Hat Hardened Images should apply the update promptly to remediate the issue. No additional mitigations are specified or required beyond applying the official update.
Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
Description
A vulnerability in the GNU C Library (glibc) affects the wordexp function when used with the WRDE_APPEND flag. This flaw can cause the function to return invalid memory in the we_wordv member, which when freed by wordfree, may lead to a process abort and denial of service. The issue requires local code execution with specific function calls and impacts applications using this pattern. Red Hat has released an update addressing this issue in their Hardened Images RPMs.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-6368 is a flaw in glibc's wordexp function where using the WRDE_APPEND flag causes the interface to return invalid memory in the we_wordv member. Subsequent processing by wordfree can cause the process to abort, resulting in a denial of service. This vulnerability requires local attacker or application interaction with the specific wordexp and wordfree calls. Red Hat has issued a security advisory with updated RPM packages including glibc-2.43-8.1.hum1 to fix this issue. The vulnerability is rated with moderate impact and affects Red Hat Hardened Images RPMs on aarch64 and x86_64 architectures.
Potential Impact
The vulnerability can cause a denial of service by crashing processes that use the vulnerable wordexp function with the WRDE_APPEND flag followed by wordfree. There is no impact on confidentiality or integrity. Exploitation requires local code execution with low privileges and no user interaction. No known exploits are reported in the wild.
Mitigation Recommendations
A fix is available from Red Hat in the form of updated RPM packages (glibc-2.43-8.1.hum1 and related). Users of affected Red Hat Hardened Images should apply the update promptly to remediate the issue. No additional mitigations are specified or required beyond applying the official update.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:53069
- Cve Count
- 2
- Additional Cves
- ["CVE-2026-6791"]
- Cvss Version
- null
Threat ID: 6a7e0385bf8831d5398fad3a
Added to database: 08/13/2026, 17:48:53 UTC
Last enriched: 09/07/2026, 16:21:02 UTC
Last updated: 09/07/2026, 16:21:02 UTC
Views: 47
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