CVE-2021-3596
Published: 24 February 2022
A NULL pointer dereference flaw was found in ImageMagick in versions prior to 7.0.10-31 in ReadSVGImage() in coders/svg.c. This issue is due to not checking the return value from libxml2's xmlCreatePushParserCtxt() and uses the value directly, which leads to a crash and segmentation fault.
Notes
| Author | Note |
|---|---|
| alexmurray | According to debian this only affects imagemagick7 but looking at the code and the patch I suspect the older versions shipped in Ubuntu are also vulnerable. |
| eslerm | only affects creating PS/PDF file which policy.xml forbids (tested) |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
imagemagick Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(policy forbids PS/PDF)
|
| focal |
Not vulnerable
(policy forbids PS/PDF)
|
|
| impish |
Not vulnerable
(8:6.9.11.60+dfsg-1ubuntu1)
|
|
| jammy |
Not vulnerable
(8:6.9.11.60+dfsg-1.3build1)
|
|
| kinetic |
Not vulnerable
(8:6.9.11.60+dfsg-1.3build1)
|
|
| trusty |
Not vulnerable
(policy forbids PS/PDF)
|
|
| upstream |
Not vulnerable
(debian: Specific to IM7)
|
|
| xenial |
Not vulnerable
(policy forbids PS/PDF)
|
|
|
Patches: upstream: https://github.com/ImageMagick/ImageMagick6/commit/27f314e2e6eb44b661e65008ce1ce46b85a5628b upstream: https://github.com/ImageMagick/ImageMagick/commit/43dfb1894761c4929d5d5c98dc80ba4e59a0d114 |
||
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 |