Candidate: CVE-2016-7970
PublicDate: 2017-03-03 16:59:00 UTC
References:
 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-7970
 http://www.openwall.com/lists/oss-security/2016/10/05/2
Description:
 Buffer overflow in the calc_coeff function in libass/ass_blur.c in libass
 before 0.13.4 allows remote attackers to cause a denial of service via
 unspecified vectors.
Ubuntu-Description:
 It was discovered that LibASS incorrectly handled certain ASS files. A remote
 attacker could possibly use this issue to cause a denial of service.
Notes:
 sbeattie> vulnerable code introduced in 0.13.0
Bugs:
 https://github.com/libass/libass/pull/240
Priority: medium
Discovered-by: Brandon Perry
Assigned-to:
CVSS:
 nvd: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H [7.5 HIGH]

Patches_libass:
 upstream: https://github.com/libass/libass/pull/240/commits/08e754612019ed84d1db0d1fc4f5798248decd75
upstream_libass: released (0.13.4)
precise_libass: not-affected
precise/esm_libass: DNE (precise was not-affected)
trusty_libass: not-affected
trusty/esm_libass: not-affected
vivid/stable-phone-overlay_libass: DNE
vivid/ubuntu-core_libass: DNE
xenial_libass: ignored (end of standard support, was needed)
yakkety_libass: ignored (reached end-of-life)
zesty_libass: not-affected (1:0.13.4-2)
artful_libass: not-affected (1:0.13.4-2)
bionic_libass: not-affected (1:0.13.4-2)
cosmic_libass: not-affected (1:0.13.4-2)
disco_libass: not-affected (1:0.13.4-2)
eoan_libass: not-affected (1:0.13.4-2)
focal_libass: not-affected (1:0.13.4-2)
groovy_libass: not-affected (1:0.13.4-2)
hirsute_libass: not-affected (1:0.13.4-2)
impish_libass: not-affected (1:0.13.4-2)
jammy_libass: not-affected (1:0.13.4-2)
devel_libass: not-affected (1:0.13.4-2)