CVE-2020-21048
Published: 14 September 2021
An issue in the dither.c component of libsixel prior to v1.8.4 allows attackers to cause a denial of service (DOS) via a crafted PNG file.
Priority
Status
Package | Release | Status |
---|---|---|
libsixel Launchpad, Ubuntu, Debian |
bionic |
Needs triage
|
focal |
Needs triage
|
|
hirsute |
Not vulnerable
(1.8.6-2)
|
|
impish |
Not vulnerable
|
|
jammy |
Not vulnerable
|
|
kinetic |
Not vulnerable
|
|
lunar |
Not vulnerable
|
|
mantic |
Not vulnerable
|
|
trusty |
Does not exist
|
|
upstream |
Released
(1.8.6-1)
|
|
xenial |
Needs triage
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 6.5 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | Required |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
References
- https://github.com/saitoha/libsixel/issues/73
- https://github.com/saitoha/libsixel/commit/cb373ab6614c910407c5e5a93ab935144e62b037
- https://github.com/saitoha/libsixel/commit/26ac06f3623279348f0dce2d191a9b6ca0c80226
- https://github.com/saitoha/libsixel/releases/tag/v1.8.4
- https://github.com/saitoha/libsixel/blob/master/ChangeLog
- https://bitbucket.org/netbsd/pkgsrc/commits/6f0c011cbfccdffa635d04c84433b1a02687adad
- https://www.cve.org/CVERecord?id=CVE-2020-21048
- NVD
- Launchpad
- Debian