OESA-2026-3389

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Source
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2026-3389
Import Source
https://repo.openeuler.org/security/data/osv/OESA-2026-3389.json
JSON Data
https://api.osv.dev/v1/vulns/OESA-2026-3389
Upstream
Published
2026-08-13T14:02:24Z
Modified
2026-08-16T01:45:20Z
Severity
  • 1.8 (Low) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N CVSS Calculator
Summary
coreutils security update
Details

These are the GNU core utilities. This package is the combination of the old GNU fileutils, sh-utils, and textutils packages.

Security Fix(es):

GNU coreutils unexpand is vulnerable to a heap-based buffer overflow due to an integer overflow during buffer allocation when processing large tab stop (-t) values. The multiplication used to calculate the allocation size can wrap around, resulting in an undersized buffer. When processing crafted input, subsequent writes exceed the allocated memory, leading to an out‑of‑bounds heap write.

When running GNU coreutils unexpand with attacker-provided large tab stop (-t) arguments, this behavior leads to a crash and potentially achieve a heap write primitive depending on memory layout.

This issue has been fixed in the commit b60a159fdc5bfcf9988d3a4cb6f53abe8ad5d35d(CVE-2026-56392)

Database specific 
{
    "severity": "Low"
}
References

Affected packages

openEuler:22.03-LTS-SP4 / coreutils

Package

Name
coreutils
Purl
pkg:rpm/openEuler/coreutils&distro=openEuler-22.03-LTS-SP4

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
9.0-27.oe2203sp4

Ecosystem specific 

{
    "aarch64": [
        "coreutils-9.0-27.oe2203sp4.aarch64.rpm",
        "coreutils-debuginfo-9.0-27.oe2203sp4.aarch64.rpm",
        "coreutils-debugsource-9.0-27.oe2203sp4.aarch64.rpm"
    ],
    "noarch": [
        "coreutils-help-9.0-27.oe2203sp4.noarch.rpm"
    ],
    "src": [
        "coreutils-9.0-27.oe2203sp4.src.rpm"
    ],
    "x86_64": [
        "coreutils-9.0-27.oe2203sp4.x86_64.rpm",
        "coreutils-debuginfo-9.0-27.oe2203sp4.x86_64.rpm",
        "coreutils-debugsource-9.0-27.oe2203sp4.x86_64.rpm"
    ]
}

Database specific

source 
"https://repo.openeuler.org/security/data/osv/OESA-2026-3389.json"