# CVE-2022-44638: libpixman-1-0: In libpixman in Pixman before 0.42.2, there is an out-of-bounds write (aka heap-based buffer overflow) in rasterize_e... CVE-2022-44638 is fixed in 6 products on 1 platform, first by libpixman-1-0 0.34.0-2ubuntu0.1, released November 2, 2022. It is not reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/cve/CVE-2022-44638 - Priority: High - CVSS: 8.8 (Medium) - EPSS: 0.0191 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Nov 2, 2022 ## 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. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | libpixman-1-0 Ubuntu 18.04.6 LTS (bionic) | 0.34.0-2ubuntu0.1 | [libpixman-1-0 0.34.0-2ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libpixman-1-0-0.34.0-2ubuntu0.1.md) | Nov 2, 2022 | | Linux | libpixman-1-0 Ubuntu 20.04 LTS (focal) | 0.38.4-0ubuntu2.1 | [libpixman-1-0 0.38.4-0ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libpixman-1-0-0.38.4-0ubuntu2.1.md) | Nov 2, 2022 | | Linux | libpixman-1-0 Ubuntu 22.04.1 LTS (jammy) | 0.40.0-1ubuntu0.22.04.1 | [libpixman-1-0 0.40.0-1ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libpixman-1-0-0.40.0-1ubuntu0.22.04.1.md) | Nov 2, 2022 | | Linux | mingw-pixman rocky 9 | 0:0.42.2-3.el9 | [RLSA-2024:2525](https://patchblox.com/security/data/fix/linux/rlsa-2024-2525.md) | May 7, 2025 | | Linux | mingw32-pixman RHEL 9 | 0:0.42.2-3.el9 | [RHSA-2024:2525](https://patchblox.com/security/data/fix/linux/rhsa-2024-2525.md) | Apr 30, 2024 | | Linux | mingw32-pixman almalinux 9 | 0.42.2-3.el9 | [ALSA-2024:2525](https://patchblox.com/security/data/fix/linux/alsa-2024-2525.md) | Apr 30, 2024 | | Linux | mingw32-pixman ol 9 | 0:0.42.2-3.el9 | [ELSA-2024-2525](https://patchblox.com/security/data/fix/linux/elsa-2024-2525.md) | May 3, 2024 | | Linux | mingw64-pixman RHEL 9 | 0:0.42.2-3.el9 | [RHSA-2024:2525](https://patchblox.com/security/data/fix/linux/rhsa-2024-2525.md) | Apr 30, 2024 | | Linux | mingw64-pixman almalinux 9 | 0.42.2-3.el9 | [ALSA-2024:2525](https://patchblox.com/security/data/fix/linux/alsa-2024-2525.md) | Apr 30, 2024 | | Linux | mingw64-pixman ol 9 | 0:0.42.2-3.el9 | [ELSA-2024-2525](https://patchblox.com/security/data/fix/linux/elsa-2024-2525.md) | May 3, 2024 | | Linux | pixman Debian 11.6 (bullseye) | 0.40.0-1.1~deb11u1 | [DSA-5276-1](https://patchblox.com/security/data/fix/linux/dsa-5276-1.md) | Nov 12, 2022 | | Linux | pixman Debian 12.15 (bookworm) | 0.40.0-1.1 | [DEBIAN-CVE-2022-44638](https://patchblox.com/security/data/fix/linux/debian-cve-2022-44638.md) | Nov 3, 2022 | | Linux | pixman Debian 13.5 (trixie) | 0.40.0-1.1 | [DEBIAN-CVE-2022-44638](https://patchblox.com/security/data/fix/linux/debian-cve-2022-44638.md) | Nov 3, 2022 | | Linux | pixman Debian 14 | 0.40.0-1.1 | [DEBIAN-CVE-2022-44638](https://patchblox.com/security/data/fix/linux/debian-cve-2022-44638.md) | Nov 3, 2022 | | Linux | pixman RHEL 8 | 0:0.38.4-3.el8_9 | [RHSA-2024:0131](https://patchblox.com/security/data/fix/linux/rhsa-2024-0131.md) | Jan 10, 2024 | | Linux | pixman RHEL 9 | 0:0.40.0-6.el9_3 | [RHSA-2023:7754](https://patchblox.com/security/data/fix/linux/rhsa-2023-7754.md) | Dec 12, 2023 | | Linux | pixman almalinux 8 | 0.38.4-3.el8_9 | [ALSA-2024:0131](https://patchblox.com/security/data/fix/linux/alsa-2024-0131.md) | Jan 10, 2024 | | Linux | pixman almalinux 9 | 0.40.0-6.el9_3 | [ALSA-2023:7754](https://patchblox.com/security/data/fix/linux/alsa-2023-7754.md) | Dec 12, 2023 | | Linux | pixman ol 8 | 0:0.38.4-3.el8_9 | [ELSA-2024-0131](https://patchblox.com/security/data/fix/linux/elsa-2024-0131.md) | Jan 11, 2024 | | Linux | pixman ol 9 | 0:0.40.0-6.el9_3 | [ELSA-2023-7754](https://patchblox.com/security/data/fix/linux/elsa-2023-7754.md) | Dec 13, 2023 | | Linux | pixman rocky 9 | 0:0.40.0-6.el9_3 | [RLSA-2023:7754](https://patchblox.com/security/data/fix/linux/rlsa-2023-7754.md) | Mar 18, 2026 | | Linux | pixman-devel RHEL 8 | 0:0.38.4-3.el8_9 | [RHSA-2024:0131](https://patchblox.com/security/data/fix/linux/rhsa-2024-0131.md) | Jan 10, 2024 | | Linux | pixman-devel RHEL 9 | 0:0.40.0-6.el9_3 | [RHSA-2023:7754](https://patchblox.com/security/data/fix/linux/rhsa-2023-7754.md) | Dec 12, 2023 | | Linux | pixman-devel almalinux 8 | 0.38.4-3.el8_9 | [ALSA-2024:0131](https://patchblox.com/security/data/fix/linux/alsa-2024-0131.md) | Jan 10, 2024 | | Linux | pixman-devel almalinux 9 | 0.40.0-6.el9_3 | [ALSA-2023:7754](https://patchblox.com/security/data/fix/linux/alsa-2023-7754.md) | Dec 12, 2023 | | Linux | pixman-devel ol 8 | 0:0.38.4-3.el8_9 | [ELSA-2024-0131](https://patchblox.com/security/data/fix/linux/elsa-2024-0131.md) | Jan 11, 2024 | | Linux | pixman-devel ol 9 | 0:0.40.0-6.el9_3 | [ELSA-2023-7754](https://patchblox.com/security/data/fix/linux/elsa-2023-7754.md) | Dec 13, 2023 | --- Data as of 2026-11-08T06:59:42Z UTC. 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