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.
The product writes data past the end, or before the beginning, of the intended buffer.
| Link | Tags |
|---|---|
| https://bugs.debian.org/911640 | third party advisory mailing list |
| https://www.cabextract.org.uk/#changes | product 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/ | third party advisory vendor advisory |
| https://www.openwall.com/lists/oss-security/2018/10/22/1 | third party advisory mailing list |
| https://lists.debian.org/debian-lts-announce/2018/10/msg00017.html | third party advisory mailing list |
| https://github.com/kyz/libmspack/commit/40ef1b4093d77ad3a5cfcee1f5cb6108b3a3bcc2 | third party advisory patch |
| https://security.gentoo.org/glsa/201903-20 | third party advisory vendor advisory |
| https://access.redhat.com/errata/RHSA-2019:2049 | third party advisory vendor advisory |
| https://www.starwindsoftware.com/security/sw-20181213-0001/ | third party advisory |