CVE-2018-18584

libmspack0: In mspack/cab.h in libmspack before 0.8alpha and cabextract before 1.8, the CAB block input buffer is one byte too sm...

CVE-2018-18584 is fixed in libmspack0 on 1 platform by libmspack0 0.6-3ubuntu0.2 (version 0.6-3ubuntu0.2), released October 21, 2018. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
n/a
Medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0266
85th percentile

In mspack/cab.h in libmspack before 0.8alpha and cabextract before 1.8, the CAB block input buffer is one byte too small for the maximal Quantum block, leading to an out-of-bounds write.

Where it's fixed

ProductFixed inFixReleased
Linux
libmspack0 · Ubuntu 18.04.6 LTS (bionic) 0.6-3ubuntu0.2 libmspack0 0.6-3ubuntu0.2 Oct 21, 2018

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