Vulnerability Details : CVE-2022-44638
In libpixman in Pixman before 0.42.2, there is an out-of-bounds write (aka heap-based buffer overflow) in rasterize_edges_8 due to an integer overflow in pixman_sample_floor_y.
Vulnerability category: Overflow
Products affected by CVE-2022-44638
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
- cpe:2.3:a:pixman:pixman:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-44638
0.34%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 71 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-44638
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST |
CWE ids for CVE-2022-44638
-
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.Assigned by: nvd@nist.gov (Primary)
References for CVE-2022-44638
-
https://lists.debian.org/debian-lts-announce/2022/11/msg00008.html
[SECURITY] [DLA 3179-1] pixman security updateMailing List;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BY4OPSIB33ETNUXZY2UPZ4NGQ3OKDY4D/
[SECURITY] Fedora 35 Update: mingw-pixman-0.42.2-1.fc35 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
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http://www.openwall.com/lists/oss-security/2022/11/05/1
oss-security - Fwd: [ANNOUNCE] pixman release 0.42.2 now availableMailing List
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https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AJ5VY2VYXE4WTRGQ6LMGLF6FV3SY37YE/
[SECURITY] Fedora 36 Update: mingw-pixman-0.42.2-1.fc36 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
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https://gitlab.freedesktop.org/pixman/pixman/-/issues/63
Integer overflow in pixman_sample_floor_y leading to heap out-of-bounds write (#63) · Issues · Pixman / pixman · GitLabExploit;Issue Tracking;Patch;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IUJ2BULJTZ2BMSKQHB6US674P55UCWWS/
[SECURITY] Fedora 37 Update: mingw-pixman-0.42.2-1.fc37 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://www.debian.org/security/2022/dsa-5276
Debian -- Security Information -- DSA-5276-1 pixmanThird Party Advisory
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http://packetstormsecurity.com/files/170121/pixman-pixman_sample_floor_y-Integer-Overflow.html
pixman pixman_sample_floor_y Integer Overflow ≈ Packet StormExploit;Third Party Advisory
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