CVE-2016-7970
Published: 3 March 2017
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.
From the Ubuntu Security Team
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
| Author | Note |
|---|---|
| sbeattie | vulnerable code introduced in 0.13.0 |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
libass Launchpad, Ubuntu, Debian |
artful |
Not vulnerable
(1:0.13.4-2)
|
| bionic |
Not vulnerable
(1:0.13.4-2)
|
|
| cosmic |
Not vulnerable
(1:0.13.4-2)
|
|
| disco |
Not vulnerable
(1:0.13.4-2)
|
|
| eoan |
Not vulnerable
(1:0.13.4-2)
|
|
| focal |
Not vulnerable
(1:0.13.4-2)
|
|
| groovy |
Not vulnerable
(1:0.13.4-2)
|
|
| hirsute |
Not vulnerable
(1:0.13.4-2)
|
|
| impish |
Not vulnerable
(1:0.13.4-2)
|
|
| jammy |
Not vulnerable
(1:0.13.4-2)
|
|
| precise |
Not vulnerable
|
|
| trusty |
Not vulnerable
|
|
| upstream |
Released
(0.13.4)
|
|
| xenial |
Released
(0.13.1-1ubuntu0.1~esm1)
Available with Ubuntu Pro |
|
| yakkety |
Ignored
(end of life)
|
|
| zesty |
Not vulnerable
(1:0.13.4-2)
|
|
|
Patches: upstream: https://github.com/libass/libass/pull/240/commits/08e754612019ed84d1db0d1fc4f5798248decd75 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |