{"id":"CVE-2024-3203","aliases":["AZL-109490","DEBIAN-CVE-2024-3203","EUVD-2024-31795","GHSA-pf5m-h35j-7c4j","UBUNTU-CVE-2024-3203","openSUSE-SU-2024:13910-1"],"status":"published","title":"c-blosc2 ndlz8x8.c ndlz8_decompress heap-based overflow","description":"A vulnerability, which was classified as critical, was found in c-blosc2 up to 2.13.2. Affected is the function ndlz8_decompress of the file /src/c-blosc2/plugins/codecs/ndlz/ndlz8x8.c. The manipulation leads to heap-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 2.14.3 is able to address this issue. It is recommended to upgrade the affected component. VDB-259050 is the identifier assigned to this vulnerability.","severity":{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.01359,"percentile":0.71941,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-122"],"published":"2024-04-02T22:00:06Z","modified":"2026-11-05T05:36:30Z","fixes":[{"ecosystem":"Debian:13","package":"c-blosc2","fixed_in":["2.13.1+ds-3"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"c-blosc2","fixed_in":["2.13.1+ds-3"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Azure Linux:3","package":"blosc","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"1.21.6-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"c-blosc2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.13.1+ds-3"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"c-blosc2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.13.1+ds-3"}]}]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"c-blosc2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.12.0+ds-1","2.12.0+ds-2","2.13.1+ds-1","2.13.1+ds-1ubuntu1","2.13.1+ds-1.1ubuntu1","2.13.1+ds-1.1ubuntu2"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"c-blosc2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.16.0+ds-1","2.17.1+ds-1","2.17.1+ds-2"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"c-blosc2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.23.0+ds-1","2.23.1+ds-1","2.23.1+ds-2"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"c-blosc2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.17.1+ds-2","2.22.0+ds-1","2.23.0+ds-1"]}],"products":[{"vendor":"blosc","product":"c-blosc2"}],"references":[{"url":"https://vuldb.com/?id.259050","tags":["vdb-entry","technical-description","x_transferred","Third Party Advisory","VDB Entry","advisory","report"]},{"url":"https://vuldb.com/?ctiid.259050","tags":["signature","permissions-required","x_transferred","Permissions Required","VDB Entry","report"]},{"url":"https://vuldb.com/?submit.304556","tags":["third-party-advisory","x_transferred","Exploit","VDB Entry","advisory","report"]},{"url":"https://drive.google.com/drive/folders/1T1k3UeS09m65LjVXExUuZfedNQPWQWCo?usp=sharing","tags":["exploit","x_transferred","Product","evidence","report"]},{"url":"https://github.com/Blosc/c-blosc2/releases/tag/v2.14.3","tags":["patch","x_transferred","Release Notes","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-3203","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-pf5m-h35j-7c4j"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/3xxx/CVE-2024-3203.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2024-3203","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2024-3203","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2024-3203","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2024-3203","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2024-3203","title":"c-blosc2 ndlz8x8.c ndlz8_decompress heap-based overflow","description":"A vulnerability, which was classified as critical, was found in c-blosc2 up to 2.13.2. Affected is the function ndlz8_decompress of the file /src/c-blosc2/plugins/codecs/ndlz/ndlz8x8.c. The manipulation leads to heap-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 2.14.3 is able to address this issue. It is recommended to upgrade the affected component. VDB-259050 is the identifier assigned to this vulnerability.","status":"published","published":"2024-04-02T22:00:06.695Z","modified":"2024-08-01T20:05:07.672Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"high","assessor":"cna"},{"version":"3.0","score":7.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"high","assessor":"cna"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","assessor":"cna"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T14:34:10.961618Z"}],"euvd":[{"id":"EUVD-2024-31795","description":"A vulnerability, which was classified as critical, was found in c-blosc2 up to 2.13.2. Affected is the function ndlz8_decompress of the file /src/c-blosc2/plugins/codecs/ndlz/ndlz8x8.c. The manipulation leads to heap-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 2.14.3 is able to address this issue. It is recommended to upgrade the affected component. VDB-259050 is the identifier assigned to this vulnerability.","status":"published","published":"2024-04-02T22:00:06Z","modified":"2024-08-01T20:05:07Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"high"}],"updated_at":"2026-11-03T03:50:39.0087Z"}],"ghsa":[{"id":"GHSA-pf5m-h35j-7c4j","title":"A vulnerability, which was classified as critical, was found in c-blosc2 up to 2.13.2. Affected...","description":"A vulnerability, which was classified as critical, was found in c-blosc2 up to 2.13.2. Affected is the function ndlz8_decompress of the file /src/c-blosc2/plugins/codecs/ndlz/ndlz8x8.c. The manipulation leads to heap-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. VDB-259050 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.","status":"published","published":"2024-04-03T00:30:55Z","modified":"2024-04-20T05:05:37Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"high"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T14:57:13.502248Z"}],"nvd":[{"id":"CVE-2024-3203","description":"A vulnerability, which was classified as critical, was found in c-blosc2 up to 2.13.2. Affected is the function ndlz8_decompress of the file /src/c-blosc2/plugins/codecs/ndlz/ndlz8x8.c. The manipulation leads to heap-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 2.14.3 is able to address this issue. It is recommended to upgrade the affected component. VDB-259050 is the identifier assigned to this vulnerability.","status":"published","published":"2024-04-02T22:15:10.32Z","modified":"2026-06-17T07:43:31.673Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"high","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"secondary"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T14:09:46.373977Z"}],"osv":[{"id":"AZL-109490","title":"CVE-2024-3203 affecting package blosc 1.21.6-1","description":"A vulnerability, which was classified as critical, was found in c-blosc2 up to 2.13.2. Affected is the function ndlz8_decompress of the file /src/c-blosc2/plugins/codecs/ndlz/ndlz8x8.c. The manipulation leads to heap-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 2.14.3 is able to address this issue. It is recommended to upgrade the affected component. VDB-259050 is the identifier assigned to this vulnerability.","status":"published","published":"2024-04-02T22:15:10Z","modified":"2026-11-05T05:36:30Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-05T16:41:18.42484Z"},{"id":"CVE-2024-3203","title":"c-blosc2 ndlz8x8.c ndlz8_decompress heap-based overflow","description":"A vulnerability, which was classified as critical, was found in c-blosc2 up to 2.13.2. Affected is the function ndlz8_decompress of the file /src/c-blosc2/plugins/codecs/ndlz/ndlz8x8.c. The manipulation leads to heap-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 2.14.3 is able to address this issue. It is recommended to upgrade the affected component. VDB-259050 is the identifier assigned to this vulnerability.","status":"published","published":"2024-04-02T22:00:06.695Z","modified":"2026-10-28T02:30:48.871815329Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"high"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T15:44:40.391953Z"},{"id":"DEBIAN-CVE-2024-3203","description":"A vulnerability, which was classified as critical, was found in c-blosc2 up to 2.13.2. Affected is the function ndlz8_decompress of the file /src/c-blosc2/plugins/codecs/ndlz/ndlz8x8.c. The manipulation leads to heap-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 2.14.3 is able to address this issue. It is recommended to upgrade the affected component. VDB-259050 is the identifier assigned to this vulnerability.","status":"published","published":"2024-04-02T22:15:10.32Z","modified":"2026-11-02T12:02:19.198050567Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:45:42.530184Z"},{"id":"UBUNTU-CVE-2024-3203","description":"A vulnerability, which was classified as critical, was found in c-blosc2 up to 2.13.2. Affected is the function ndlz8_decompress of the file /src/c-blosc2/plugins/codecs/ndlz/ndlz8x8.c. The manipulation leads to heap-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 2.14.3 is able to address this issue. It is recommended to upgrade the affected component. VDB-259050 is the identifier assigned to this vulnerability.","status":"published","published":"2024-04-02T22:15:00Z","modified":"2026-10-17T12:56:35.403099703Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"high"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T16:54:48.333535Z"},{"id":"openSUSE-SU-2024:13910-1","title":"blosc2-devel-2.14.4-1.1 on GA media","description":"These are all security issues fixed in the blosc2-devel-2.14.4-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T03:56:52.38636Z","updated_at":"2026-11-02T16:58:36.662953Z"}]}}