CVE-2018-18584
MEDIUM severity · CVSS 6.5 · Out-of-bounds write
6.5CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionRequired
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)3%
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://github.com/kyz/libmspack/commit/40ef1b4093d77ad3a5cfcee1f5cb6108b3a3bcc2 ↗
Additional information
- NVD record
- https://github.com/kyz/libmspack/commit/40ef1b4093d77ad3a5cfcee1f5cb6108b3a3bcc2Patch
- https://access.redhat.com/errata/RHSA-2019:2049Advisory
- https://bugs.debian.org/911640Advisory
- https://lists.debian.org/debian-lts-announce/2018/10/msg00017.htmlAdvisory
- https://security.gentoo.org/glsa/201903-20Advisory
- https://usn.ubuntu.com/3814-1/Advisory
- https://usn.ubuntu.com/3814-2/Advisory
- https://usn.ubuntu.com/3814-3/Advisory