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No exploitation reportedFix available

CVE-2022-44638

No exploitation reported by the sources we read.

  • Published2022-11-03
  • Fixed in0.42.2
  • WeaknessCWE-190

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC
  1. 2022-11-0306:15CVE publishedNVD

Versions per branch

NVD
Pixman
BranchAffectedFixed in
0.42< 0.42.20.42.2
Fedoraproject fedora
BranchAffectedFixed in
35.x= 35no fix published
36.x= 36no fix published
37.x= 37no fix published
Debian debian linux
BranchAffectedFixed in
10.0= 10.0no fix published
11.0= 11.0no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • mingw-pixmanRocky Linux:9all versions · fixed in 0:0.42.2-3.el9
  • mingw32-pixmanRed Hat:enterprise_linux:9::crball versions · fixed in 0:0.42.2-3.el9and 4 other packages
  • mingw32-pixmanAlmaLinux:9all versions · fixed in 0.42.2-3.el9and 1 other package
  • pixmanUbuntu:Pro:16.04:LTSall versions · fixed in 0.33.6-1ubuntu0.1~esm1
  • pixmanUbuntu:Pro:14.04:LTSall versions · fixed in 0.30.2-2ubuntu1.2+esm1
  • pixmanUbuntu:22.04:LTSall versions · fixed in 0.40.0-1ubuntu0.22.04.1
  • pixmanUbuntu:20.04:LTSall versions · fixed in 0.38.4-0ubuntu2.1
  • pixmanUbuntu:18.04:LTSall versions · fixed in 0.34.0-2ubuntu0.1

68 more package ranges on OSV.dev

Vendor advisories

  • CVE-2022-44638 Red Hat Product Security131 products fixed · 2 known affected

    pixman: Integer overflow in pixman_sample_floor_y leading to heap out-of-bounds write

    pixman-devel as a component of Red Hat Enterprise Linux 7 · pixman.src as a component of Red Hat Enterprise Linux 7

  • RHSA-2024:2525 Red Hat Product Security5 products fixed

    Red Hat Security Advisory: mingw-pixman security update

  • RHSA-2024:0131 Red Hat Product Security21 products fixed

    Red Hat Security Advisory: pixman security update

  • RHSA-2023:7754 Red Hat Product Security21 products fixed

    Red Hat Security Advisory: pixman security update

  • RHSA-2023:7531 Red Hat Product Security21 products fixed

    Red Hat Security Advisory: pixman security update

  • RHSA-2023:7403 Red Hat Product Security21 products fixed

    Red Hat Security Advisory: pixman security update

2 more advisories

Full record on NVD

Fix

  1. Update Pixman to 0.42.2
  2. Vendor fix Red Hat Product Security RHSA-2024:2525 · 5 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
  3. No fix planned, says the vendor Red Hat Product Security CVE-2022-44638 · 2 productsOut of support scope

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
2022-11-03
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-jw33-72hm-ggg2

Frequently asked questions

What is 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.

Is CVE-2022-44638 actively exploited?

Active exploitation of CVE-2022-44638 has not been confirmed. Its EPSS score was 1.9% on 2026-11-09, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-44638?

CVE-2022-44638 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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Sources for this record