Source: libmspack
X-Debbugs-CC: [email protected]
Severity: important
Tags: security

Hi,

The following vulnerability was published for libmspack.

CVE-2026-110602[0]:
| libmspack through 0.11alpha contains an uninitialized pointer free
| vulnerability in kwajd_open() in mspack/kwajd.c that frees unzeroed
| filename and extra pointers on header read errors. Attackers can
| supply a truncated, empty, or wrong-signature KWAJ file to crash the
| process or obtain an arbitrary-free memory corruption primitive.

https://github.com/kyz/libmspack/commit/4d868504114346aa767d435fbb89a8b76603493f

If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2026-110602
    https://www.cve.org/CVERecord?id=CVE-2026-110602

Please adjust the affected versions in the BTS as needed.

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