# CVE-2020-22219: flac: FLAC stands for Free Lossless Audio Codec CVE-2020-22219 is fixed in 5 products on 1 platform, first by flac 1.3.2-1ubuntu0.1+esm1, released August 22, 2023. It is not reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/cve/CVE-2020-22219 - Priority: High - CVSS: 7.8 (Important) - EPSS: 0.0079 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Aug 22, 2023 ## Description FLAC stands for Free Lossless Audio Codec. FLAC is similar to Ogg Vorbis, but lossless. The FLAC project consists of the stream format, reference encoders and decoders in library form, a command-line program to encode and decode FLAC files, and a command-line metadata editor for FLAC files. Security Fix(es): * flac: Remote Code Execution (RCE) via the bitwriter_grow_ function, by supplying crafted input to the encoder (CVE-2020-22219) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | flac Debian 11.6 (bullseye) | 1.3.3-2+deb11u2 | [DSA-5500-1](https://patchblox.com/security/data/fix/linux/dsa-5500-1.md) | Sep 18, 2023 | | Linux | flac Debian 12.15 (bookworm) | 1.4.1-1 | [DEBIAN-CVE-2020-22219](https://patchblox.com/security/data/fix/linux/debian-cve-2020-22219.md) | Aug 22, 2023 | | Linux | flac Debian 13.5 (trixie) | 1.4.1-1 | [DEBIAN-CVE-2020-22219](https://patchblox.com/security/data/fix/linux/debian-cve-2020-22219.md) | Aug 22, 2023 | | Linux | flac Debian 14 | 1.4.1-1 | [DEBIAN-CVE-2020-22219](https://patchblox.com/security/data/fix/linux/debian-cve-2020-22219.md) | Aug 22, 2023 | | Linux | flac RHEL 8 | 0:1.3.2-9.el8_8.1 | [RHSA-2023:5046](https://patchblox.com/security/data/fix/linux/rhsa-2023-5046.md) | Sep 11, 2023 | | Linux | flac RHEL 9 | 0:1.3.3-10.el9_2.1 | [RHSA-2023:5048](https://patchblox.com/security/data/fix/linux/rhsa-2023-5048.md) | Sep 11, 2023 | | Linux | flac Ubuntu 18.04.6 LTS (bionic) | 1.3.2-1ubuntu0.1+esm1 | [flac 1.3.2-1ubuntu0.1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-flac-1.3.2-1ubuntu0.1-esm1.md) | Aug 22, 2023 | | Linux | flac Ubuntu 20.04 LTS (focal) | 1.3.3-1ubuntu0.2 | [flac 1.3.3-1ubuntu0.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-flac-1.3.3-1ubuntu0.2.md) | Aug 22, 2023 | | Linux | flac Ubuntu 22.04.1 LTS (jammy) | 1.3.3-2ubuntu0.2 | [flac 1.3.3-2ubuntu0.2](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-flac-1.3.3-2ubuntu0.2.md) | Aug 22, 2023 | | Linux | flac almalinux 8 | 1.3.2-9.el8_8.1 | [ALSA-2023:5046](https://patchblox.com/security/data/fix/linux/alsa-2023-5046.md) | Sep 11, 2023 | | Linux | flac almalinux 9 | 1.3.3-10.el9_2.1 | [ALSA-2023:5048](https://patchblox.com/security/data/fix/linux/alsa-2023-5048.md) | Sep 11, 2023 | | Linux | flac ol 8 | 0:1.3.2-9.el8_8.1 | [ELSA-2023-5046](https://patchblox.com/security/data/fix/linux/elsa-2023-5046.md) | Sep 13, 2023 | | Linux | flac ol 9 | 0:1.3.3-10.el9_2.1 | [ELSA-2023-5048](https://patchblox.com/security/data/fix/linux/elsa-2023-5048.md) | Sep 13, 2023 | | Linux | flac rocky 9 | 0:1.3.3-10.el9_2.1 | [RLSA-2023:5048](https://patchblox.com/security/data/fix/linux/rlsa-2023-5048.md) | Jun 25, 2026 | | Linux | flac-devel RHEL 8 | 0:1.3.2-9.el8_8.1 | [RHSA-2023:5046](https://patchblox.com/security/data/fix/linux/rhsa-2023-5046.md) | Sep 11, 2023 | | Linux | flac-devel RHEL 9 | 0:1.3.3-10.el9_2.1 | [RHSA-2023:5048](https://patchblox.com/security/data/fix/linux/rhsa-2023-5048.md) | Sep 11, 2023 | | Linux | flac-devel almalinux 8 | 1.3.2-9.el8_8.1 | [ALSA-2023:5046](https://patchblox.com/security/data/fix/linux/alsa-2023-5046.md) | Sep 11, 2023 | | Linux | flac-devel almalinux 9 | 1.3.3-10.el9_2.1 | [ALSA-2023:5048](https://patchblox.com/security/data/fix/linux/alsa-2023-5048.md) | Sep 11, 2023 | | Linux | flac-devel ol 8 | 0:1.3.2-9.el8_8.1 | [ELSA-2023-5046](https://patchblox.com/security/data/fix/linux/elsa-2023-5046.md) | Sep 13, 2023 | | Linux | flac-devel ol 9 | 0:1.3.3-10.el9_2.1 | [ELSA-2023-5048](https://patchblox.com/security/data/fix/linux/elsa-2023-5048.md) | Sep 13, 2023 | | Linux | flac-libs RHEL 8 | 0:1.3.2-9.el8_8.1 | [RHSA-2023:5046](https://patchblox.com/security/data/fix/linux/rhsa-2023-5046.md) | Sep 11, 2023 | | Linux | flac-libs RHEL 9 | 0:1.3.3-10.el9_2.1 | [RHSA-2023:5048](https://patchblox.com/security/data/fix/linux/rhsa-2023-5048.md) | Sep 11, 2023 | | Linux | flac-libs almalinux 8 | 1.3.2-9.el8_8.1 | [ALSA-2023:5046](https://patchblox.com/security/data/fix/linux/alsa-2023-5046.md) | Sep 11, 2023 | | Linux | flac-libs almalinux 9 | 1.3.3-10.el9_2.1 | [ALSA-2023:5048](https://patchblox.com/security/data/fix/linux/alsa-2023-5048.md) | Sep 11, 2023 | | Linux | flac-libs ol 8 | 0:1.3.2-9.el8_8.1 | [ELSA-2023-5046](https://patchblox.com/security/data/fix/linux/elsa-2023-5046.md) | Sep 13, 2023 | | Linux | flac-libs ol 9 | 0:1.3.3-10.el9_2.1 | [ELSA-2023-5048](https://patchblox.com/security/data/fix/linux/elsa-2023-5048.md) | Sep 13, 2023 | | Linux | libflac++6v5 Ubuntu 18.04.6 LTS (bionic) | 1.3.2-1ubuntu0.1+esm1 | [libflac++6v5 1.3.2-1ubuntu0.1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libflac-6v5-1.3.2-1ubuntu0.1-esm1.md) | Aug 22, 2023 | | Linux | libflac++6v5 Ubuntu 20.04 LTS (focal) | 1.3.3-1ubuntu0.2 | [libflac++6v5 1.3.3-1ubuntu0.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libflac-6v5-1.3.3-1ubuntu0.2.md) | Aug 22, 2023 | | Linux | libflac++6v5 Ubuntu 22.04.1 LTS (jammy) | 1.3.3-2ubuntu0.2 | [libflac++6v5 1.3.3-2ubuntu0.2](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libflac-6v5-1.3.3-2ubuntu0.2.md) | Aug 22, 2023 | | Linux | libflac8 Ubuntu 18.04.6 LTS (bionic) | 1.3.2-1ubuntu0.1+esm1 | [libflac8 1.3.2-1ubuntu0.1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libflac8-1.3.2-1ubuntu0.1-esm1.md) | Aug 22, 2023 | | Linux | libflac8 Ubuntu 20.04 LTS (focal) | 1.3.3-1ubuntu0.2 | [libflac8 1.3.3-1ubuntu0.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libflac8-1.3.3-1ubuntu0.2.md) | Aug 22, 2023 | | Linux | libflac8 Ubuntu 22.04.1 LTS (jammy) | 1.3.3-2ubuntu0.2 | [libflac8 1.3.3-2ubuntu0.2](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libflac8-1.3.3-2ubuntu0.2.md) | Aug 22, 2023 | --- Data as of 2026-11-08T06:59:42Z UTC. 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