An issue was discovered in kwajd_read_headers in mspack/kwajd.c in libmspack before 0.7alpha. Bad KWAJ file header extensions could cause a one or two byte overwrite.Referenceshttps://usn.ubuntu.com/3728-3/https://www.debian.org/security/2018/dsa-4260https://lists.debian.org/debian-lts-announce/2018/08/msg00007.htmlhttps://bugs.debian.org/904799http://www.openwall.com/lists/oss-security/2018/07/26/1https://access.redhat.com/errata/RHSA-2018:3505https://usn.ubuntu.com/3789-2/https://usn.ubuntu.com/3728-2/https://github.com/kyz/libmspack/commit/0b0ef9344255ff5acfac6b7af09198ac9c9756c8http://www.securitytracker.com/id/1041410https://usn.ubuntu.com/3728-1/https://access.redhat.com/errata/RHSA-2018:3327https://security.gentoo.org/glsa/201903-20
