Description
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.
References (11)
Core 11
Core References
Mailing List, Third Party Advisory
https://bugs.debian.org/911640
Patch, Third Party Advisory
https://github.com/kyz/libmspack/commit/40ef1b4093d77ad3a5cfcee1f5cb6108b3a3bcc2
Product, Vendor Advisory
https://www.cabextract.org.uk/#changes
Mailing List, Third Party Advisory
https://www.openwall.com/lists/oss-security/2018/10/22/1
Third Party Advisory
https://www.starwindsoftware.com/security/sw-20181213-0001/
Third Party Advisory vendor-advisory
https://usn.ubuntu.com/3814-3/
Third Party Advisory vendor-advisory
https://usn.ubuntu.com/3814-1/
Third Party Advisory vendor-advisory
https://usn.ubuntu.com/3814-2/
Mailing List, Third Party Advisory mailing-list
https://lists.debian.org/debian-lts-announce/2018/10/msg00017.html
Third Party Advisory vendor-advisory
https://security.gentoo.org/glsa/201903-20
Third Party Advisory vendor-advisory
https://access.redhat.com/errata/RHSA-2019:2049
Scores
CVSS v3
6.5
EPSS
0.0637
EPSS Percentile
91.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Details
CWE
CWE-787
Status
published
Products (17)
cabextract_project/cabextract
< 1.8
canonical/ubuntu_linux
12.04
canonical/ubuntu_linux
14.04
canonical/ubuntu_linux
16.04
canonical/ubuntu_linux
18.04
canonical/ubuntu_linux
18.10
debian/debian_linux
8.0
libmspack_project/libmspack
0.3 alpha
libmspack_project/libmspack
0.4 alpha
libmspack_project/libmspack
0.5 alpha
... and 7 more
Published
Oct 23, 2018
Tracked Since
Feb 18, 2026