CVE-2018-6548
Published: 2 February 2018
A use-after-free issue was discovered in libwebm through 2018-02-02. If a Vp9HeaderParser was initialized once before, its property frame_ would not be changed because of code in vp9parser::Vp9HeaderParser::SetFrame. Its frame_ could be freed while the corresponding pointer would not be updated, leading to a dangling pointer. This is related to the function OutputCluster in webm_info.cc.
Notes
Author | Note |
---|---|
mdeslaur | marking chromium-browser as ignored as we do full-version upgrades and we rely on upstream's bundled libwebm |
Priority
Status
Package | Release | Status |
---|---|---|
chromium-browser Launchpad, Ubuntu, Debian |
bionic |
Ignored
|
cosmic |
Ignored
|
|
artful |
Ignored
(end of life)
|
|
trusty |
Does not exist
(trusty was ignored)
|
|
upstream |
Needs triage
|
|
xenial |
Ignored
|
|
oxide-qt Launchpad, Ubuntu, Debian |
artful |
Ignored
(end of life)
|
bionic |
Does not exist
|
|
cosmic |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [Ubuntu touch end-of-life])
|
|
upstream |
Needs triage
|
|
xenial |
Ignored
(Ubuntu touch end-of-life)
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 9.8 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | High |
Availability impact | High |
Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |