Packages
- coreutils - GNU core utilities
Details
It was discovered that GNU Core Utilities sort had a heap buffer under-read
in its begfield() function. A local attacker could possibly use this issue
to cause GNU Core Utilities to crash, resulting in a denial of service, or
obtain sensitive information. (CVE-2025-5278)
It was discovered that GNU Core Utilities uniq had an out-of-bounds read
when the -w option was used with crafted multibyte input. A local attacker
could possibly use this issue to cause GNU Core Utilities to crash,
resulting in a denial of service, or obtain sensitive information. This
issue only affected Ubuntu 26.04 LTS. (CVE-2026-56391)
It was discovered that GNU Core Utilities sort had a heap buffer under-read
in its begfield() function. A local attacker could possibly use this issue
to cause GNU Core Utilities to crash, resulting in a denial of service, or
obtain sensitive information. (CVE-2025-5278)
It was discovered that GNU Core Utilities uniq had an out-of-bounds read
when the -w option was used with crafted multibyte input. A local attacker
could possibly use this issue to cause GNU Core Utilities to crash,
resulting in a denial of service, or obtain sensitive information. This
issue only affected Ubuntu 26.04 LTS. (CVE-2026-56391)
Update instructions
In general, a standard system update will make all the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
| Ubuntu Release | Package Version | ||
|---|---|---|---|
| 26.04 LTS resolute | gnu-coreutils – 9.7-3ubuntu2.1 | ||
| 24.04 LTS noble | coreutils – 9.4-3ubuntu6.3 | ||
| 22.04 LTS jammy | coreutils – 8.32-4.1ubuntu1.4 | ||
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