Description


libmspack through 0.11alpha contains an uninitialized memory disclosure vulnerability in the MS-ZIP decompressor that allows attackers to leak heap data via unchecked back-reference distances. Attackers can supply a crafted MS-ZIP CAB file whose first block begins with a back-reference, causing cabd->extract() to write up to 32 KiB of stale heap memory into extracted output.

Related CPE's


Could not find any relations

Weaknesses



CWE-908

CVSS impact metrics


CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

3.7 · Low

Information


Source identifier

[email protected]

Vulnerability status

Deferred

Published

2026-10-30T14:16:48.700Z

1 hour ago

Last modified

2026-10-30T14:16:48.850Z

1 hour ago