CVE-2021-40812
Published: 8 September 2021
The GD Graphics Library (aka LibGD) through 2.3.2 has an out-of-bounds read because of the lack of certain gdGetBuf and gdPutBuf return value checks.
Notes
| Author | Note |
|---|---|
| mdeslaur | php uses the system libgd2 |
| leosilva | the fix proposed is a partial one that address BMP and WebP but not GIF. no complete fix available from upstream as of 2021-11-08 |
| rodrigo-zaiden | still no complete fix from upstream as of 2022-11-25. |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
libgd2 Launchpad, Ubuntu, Debian |
bionic |
Deferred
(2022-11-25)
|
| focal |
Deferred
(2022-11-25)
|
|
| hirsute |
Ignored
(reached end-of-life)
|
|
| impish |
Ignored
(reached end-of-life)
|
|
| jammy |
Deferred
(2022-11-25)
|
|
| kinetic |
Deferred
(2022-11-25)
|
|
| lunar |
Deferred
(2022-11-25)
|
|
| trusty |
Deferred
(2022-11-25)
|
|
| upstream |
Needs triage
|
|
| xenial |
Deferred
(2022-11-25)
|
|
|
Patches: upstream: https://github.com/libgd/libgd/commit/6f5136821be86e7068fcdf651ae9420b5d42e9a9 (partial fix) |
||
|
php5 Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| focal |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
| trusty |
Not vulnerable
(uses system gd)
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
|
php7.0 Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| focal |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Not vulnerable
(uses system gd)
|
|
|
php7.2 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(uses system gd)
|
| focal |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
|
php7.3 Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| focal |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
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 |