Candidate: CVE-2020-36430
PublicDate: 2021-07-20 07:15:00 UTC
References:
 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-36430
 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26674
 https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libass/OSV-2020-2099.yaml
 https://github.com/libass/libass/commit/017137471d0043e0321e377ed8da48e45a3ec632
Description:
 libass 0.15.x before 0.15.1 has a heap-based buffer overflow in
 decode_chars (called from decode_font and process_text) because the wrong
 integer data type is used for subtraction.
Ubuntu-Description:
Notes:
 ccdm94> introduced by commit 910211f.
Mitigation:
Bugs:
Priority: medium
Discovered-by:
Assigned-to:
CVSS:
 nvd: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H [7.8 HIGH]


Patches_libass:
 upstream: https://github.com/libass/libass/commit/017137471d0043e0321e377ed8da48e45a3ec632
upstream_libass: released (0.15.1, 1:0.15.0-2)
trusty_libass: ignored (out of standard support)
trusty/esm_libass: not-affected (code not present)
xenial_libass: ignored (out of standard support, xenial was not-affected)
bionic_libass: not-affected (code not present)
focal_libass: not-affected (code not present)
groovy_libass: ignored (reached end-of-life)
hirsute_libass: ignored (reached end-of-life)
impish_libass: not-affected (1:0.15.0-2)
jammy_libass: not-affected (1:0.15.2-1)
devel_libass: not-affected (1:0.15.2-1)