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High severity · published Nov 19, 2021
CVE-2021-3962
A flaw was found in ImageMagick where it did not properly sanitize certain input before using it to invoke convert processes
7.8
CVSS
6%
EPSS
No
On KEV
Description
A flaw was found in ImageMagick where it did not properly sanitize certain input before using it to invoke convert processes. This flaw allows an attacker to create a specially crafted image that leads to a use-after-free vulnerability when processed by ImageMagick. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)6.0% · higher than 93% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IM
ImageMagick ·
7.1.0-14 · source: vendor, NVD
Affected product
IM
ImageMagick
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-3962
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-3962
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2023196
Patch
https://github.com/ImageMagick/ImageMagick/commit/82775af03bbb10a0a1d0e15c0156c75673b4525e
Third Party Advisory
https://github.com/ImageMagick/ImageMagick/issues/4446
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