CVE-2026-119602
נמוכה 3.7
תיאור (מקור, אנגלית)
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.
מדדים
- CVSS 3.1
-
3.7 (LOW)
מקור הציון: CNA
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N - CVSS 4.0
-
6.3 (MEDIUM)
מקור הציון: CNA
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - EPSS — סבירות ניצול
- 0% (אחוזון 000) נכון ל-1/11/2026
- CWE
- CWE-908
קישורים
- https://github.com/kyz/libmspack
- https://github.com/kyz/libmspack/blob/v0.11alpha/libmspack/mspack/mszipd.c#L26…
- https://github.com/kyz/libmspack/issues/60
- https://hackmd.io/@haindpwn/libmspack-mszip-uninit-window-info-leak
- https://www.vulncheck.com/advisories/libmspack-through-0-11alpha-uninitialized…