{"id":"CVE-2023-38703","aliases":["ALPINE-CVE-2023-38703","DEBIAN-CVE-2023-38703","DLA-3696-1","DSA-5596-1","EUVD-2023-42480","GHSA-f76w-fh7c-pc66","UBUNTU-CVE-2023-38703"],"status":"published","title":"PJSIP has use-after-free vulnerability in SRTP media transport","description":"PJSIP is a free and open source multimedia communication library written in C with high level API in C, C++, Java, C#, and Python languages. SRTP is a higher level media transport which is stacked upon a lower level media transport such as UDP and ICE. Currently a higher level transport is not synchronized with its lower level transport that may introduce use-after-free issue. This vulnerability affects applications that have SRTP capability (`PJMEDIA_HAS_SRTP` is set) and use underlying media transport other than UDP. This vulnerability’s impact may range from unexpected application termination to control flow hijack/memory corruption. The patch is available as a commit in the master branch.","severity":{"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":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.0159,"percentile":0.75834,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-416"],"published":"2023-10-06T13:46:54Z","modified":"2026-10-28T10:34:59Z","fixes":[{"ecosystem":"Alpine:v3.18","package":"pjproject","fixed_in":["2.14-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.19","package":"pjproject","fixed_in":["2.14-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.20","package":"pjproject","fixed_in":["2.14-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.21","package":"pjproject","fixed_in":["2.14-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.22","package":"pjproject","fixed_in":["2.14-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.23","package":"pjproject","fixed_in":["2.14-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.24","package":"pjproject","fixed_in":["2.14-r0"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"asterisk","fixed_in":["1:20.8.1~dfsg+~cs6.14.40431414-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Alpine:v3.18","package":"pjproject","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.14-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.19","package":"pjproject","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.14-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.20","package":"pjproject","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.14-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.21","package":"pjproject","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.14-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.22","package":"pjproject","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.14-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.23","package":"pjproject","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.14-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.24","package":"pjproject","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.14-r0"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"asterisk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:20.8.1~dfsg+~cs6.14.40431414-1"}]}],"versions":["0.1.11-3","0.1.11-3woody1","1:1.0.5-2","1:1.0.5-4","1:1.0.6-1","1:1.0.6-2","1:1.0.7-1","1:1.0.7.dfsg.1-1","1:1.0.7.dfsg.1-2","1:1.0.7.dfsg.1-2sarge1","1:1.0.7.dfsg.1-2sarge2","1:1.0.7.dfsg.1-2sarge3","1:1.0.7.dfsg.1-2sarge4","1:1.0.7.dfsg.1-2sarge5","1:1.0.7.dfsg.1-2sarge6","1:1.0.9.dfsg-1","1:1.0.9.dfsg-3","1:1.0.9.dfsg-4","1:1.0.9.dfsg-5","1:1.0.9.dfsg-6","1:1.2.0-beta1.dfsg-1","1:1.2.0-beta2.dfsg-1","1:1.2.0-beta2.dfsg-2","1:1.2.0-beta2.dfsg-3","1:1.2.0-rc1.dfsg-1","1:1.2.0-rc2.dfsg-1","1:1.2.0.dfsg-1","1:1.2.0.dfsg-2","1:1.2.0.dfsg-3","1:1.2.0.dfsg-4","1:1.2.0.dfsg-5","1:1.2.0.dfsg-6","1:1.2.1.dfsg-1","1:1.2.1.dfsg-2","1:1.2.1.dfsg-3","1:1.2.10.dfsg-1","1:1.2.10.dfsg-1bpo1","1:1.2.10.dfsg-2","1:1.2.10.dfsg-3","1:1.2.11.dfsg-1","1:1.2.12.1.dfsg-1","1:1.2.13~dfsg-1","1:1.2.13~dfsg-2","1:1.2.13~dfsg-2etch1","1:1.2.13~dfsg-2etch2","1:1.2.13~dfsg-2etch3","1:1.2.13~dfsg-2etch4","1:1.2.14~dfsg-1","1:1.2.14~dfsg-2","1:1.2.14~dfsg-3","1:1.2.14~dfsg-4","1:1.2.15~dfsg-1","1:1.2.16~dfsg-1","1:1.2.17~dfsg-1","1:1.2.4.dfsg-1","1:1.2.4.dfsg-2","1:1.2.4.dfsg-3","1:1.2.4.dfsg-4","1:1.2.4.dfsg-5","1:1.2.4.dfsg-6","1:1.2.4.dfsg-6+b1","1:1.2.4.dfsg-7","1:1.2.7.1.dfsg-1","1:1.2.7.1.dfsg-2","1:1.2.7.1.dfsg-3","1:1.2.9.1.dfsg-1","1:1.4.10~dfsg-1","1:1.4.11~dfsg-1","1:1.4.11~dfsg-2","1:1.4.11~dfsg-3","1:1.4.11~dfsg-4","1:1.4.13~dfsg-1","1:1.4.15~dfsg-1","1:1.4.16.2~dfsg-1","1:1.4.16.2~dfsg-2","1:1.4.17~dfsg-1","1:1.4.17~dfsg-2","1:1.4.18.1~dfsg-1","1:1.4.18~dfsg-1","1:1.4.19.1~dfsg-1","1:1.4.20~dfsg-1","1:1.4.21.1~dfsg-1","1:1.4.21.2~dfsg-1","1:1.4.21.2~dfsg-2","1:1.4.21.2~dfsg-3","1:1.4.21.2~dfsg-3+lenny1","1:1.4.21.2~dfsg-3+lenny2","1:1.4.21.2~dfsg-3+lenny2.1","1:1.4.21.2~dfsg-3+lenny3","1:1.4.21.2~dfsg-3+lenny5","1:1.4.21.2~dfsg-3+lenny6","1:1.4.21.2~dfsg-3.1","1:1.4.2~dfsg-1","1:1.4.2~dfsg-2","1:1.4.2~dfsg-3","1:1.4.2~dfsg-4","1:1.4.2~dfsg-5","1:1.4.3~dfsg-1","1:1.4.4~dfsg-1","1:1.4.4~dfsg-2","1:1.4.4~dfsg-3","1:1.4.5~dfsg-1","1:1.4.6~dfsg-1","1:1.4.8~dfsg-1","1:1.4.8~dfsg-2","1:1.4.9~dfsg-1","1:1.6.1.0~dfsg-1","1:1.6.1.0~dfsg~rc3-1","1:1.6.2.0-1","1:1.6.2.0~dfsg~beta3-1","1:1.6.2.0~dfsg~rc1-1","1:1.6.2.0~rc3-1","1:1.6.2.0~rc3-2","1:1.6.2.0~rc6-1","1:1.6.2.0~rc7-1","1:1.6.2.2-1","1:1.6.2.6-1","1:1.6.2.7-1","1:1.6.2.9-1","1:1.6.2.9-1~bpo50+1","1:1.6.2.9-1~bpo50+2","1:1.6.2.9-1~bpo50+3","1:1.6.2.9-2","1:1.6.2.9-2+squeeze1","1:1.6.2.9-2+squeeze10","1:1.6.2.9-2+squeeze11","1:1.6.2.9-2+squeeze12","1:1.6.2.9-2+squeeze2","1:1.6.2.9-2+squeeze3","1:1.6.2.9-2+squeeze4","1:1.6.2.9-2+squeeze5","1:1.6.2.9-2+squeeze6","1:1.6.2.9-2+squeeze7","1:1.6.2.9-2+squeeze8","1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Advisory","advisory","report"]},{"url":"https://github.com/pjsip/pjproject/commit/6dc9b8c181aff39845f02b4626e0812820d4ef0d","tags":["x_refsource_MISC","x_transferred","Patch","fix","report"]},{"url":"https://lists.debian.org/debian-lts-announce/2023/12/msg00019.html","tags":["x_transferred","Mailing List","web"]},{"url":"https://security.alpinelinux.org/vuln/CVE-2023-38703","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/38xxx/CVE-2023-38703.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-38703","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2023-38703","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2023-38703","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-38703","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2023-38703","title":"PJSIP has use-after-free vulnerability in SRTP media transport","description":"PJSIP is a free and open source multimedia 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SRTP is a higher level media transport which is stacked upon a lower level media transport such as UDP and ICE. Currently a higher level transport is not synchronized with its lower level transport that may introduce use-after-free issue. This vulnerability affects applications that have SRTP capability (`PJMEDIA_HAS_SRTP` is set) and use underlying media transport other than UDP. This vulnerability’s impact may range from unexpected application termination to control flow hijack/memory corruption. The patch is available as a commit in the master branch.","status":"published","published":"2023-10-06T13:46:54.238Z","modified":"2025-02-13T17:02:32.006Z","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","assessor":"cna"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:35:29.772612Z"}],"euvd":[{"id":"EUVD-2023-42480","description":"PJSIP is a free and open source multimedia communication library written in C with high level API in C, C++, Java, C#, and Python languages. SRTP is a higher level media transport which is stacked upon a lower level media transport such as UDP and ICE. Currently a higher level transport is not synchronized with its lower level transport that may introduce use-after-free issue. This vulnerability affects applications that have SRTP capability (`PJMEDIA_HAS_SRTP` is set) and use underlying media transport other than UDP. This vulnerability’s impact may range from unexpected application termination to control flow hijack/memory corruption. The patch is available as a commit in the master branch.","status":"published","published":"2023-10-06T13:46:54Z","modified":"2025-02-13T17:02:32Z","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":"2026-11-03T00:03:49.604577Z"}],"nvd":[{"id":"CVE-2023-38703","description":"PJSIP is a free and open source multimedia communication library written in C with high level API in C, C++, Java, C#, and Python languages. SRTP is a higher level media transport which is stacked upon a lower level media transport such as UDP and ICE. Currently a higher level transport is not synchronized with its lower level transport that may introduce use-after-free issue. This vulnerability affects applications that have SRTP capability (`PJMEDIA_HAS_SRTP` is set) and use underlying media transport other than UDP. This vulnerability’s impact may range from unexpected application termination to control flow hijack/memory corruption. The patch is available as a commit in the master branch.","status":"published","published":"2023-10-06T14:15:12.02Z","modified":"2026-06-17T06:10:59.267Z","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","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"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:08:36.656095Z"}],"osv":[{"id":"ALPINE-CVE-2023-38703","description":"PJSIP is a free and open source multimedia communication library written in C with high level API in C, C++, Java, C#, and Python languages. SRTP is a higher level media transport which is stacked upon a lower level media transport such as UDP and ICE. Currently a higher level transport is not synchronized with its lower level transport that may introduce use-after-free issue. This vulnerability affects applications that have SRTP capability (`PJMEDIA_HAS_SRTP` is set) and use underlying media transport other than UDP. This vulnerability’s impact may range from unexpected application termination to control flow hijack/memory corruption. The patch is available as a commit in the master branch.","status":"published","published":"2023-10-06T14:15:12.02Z","modified":"2026-10-26T17:17:58.635278215Z","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":"2026-11-02T15:27:49.709457Z"},{"id":"CVE-2023-38703","title":"PJSIP has use-after-free vulnerability in SRTP media transport","description":"PJSIP is a free and open source multimedia communication library written in C with high level API in C, C++, Java, C#, and Python languages. SRTP is a higher level media transport which is stacked upon a lower level media transport such as UDP and ICE. Currently a higher level transport is not synchronized with its lower level transport that may introduce use-after-free issue. This vulnerability affects applications that have SRTP capability (`PJMEDIA_HAS_SRTP` is set) and use underlying media transport other than UDP. This vulnerability’s impact may range from unexpected application termination to control flow hijack/memory corruption. The patch is available as a commit in the master branch.","status":"published","published":"2023-10-06T13:46:54.238Z","modified":"2026-10-28T10:34:59.510336029Z","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"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T15:44:32.922049Z"},{"id":"DEBIAN-CVE-2023-38703","description":"PJSIP is a free and open source multimedia communication library written in C with high level API in C, C++, Java, C#, and Python languages. SRTP is a higher level media transport which is stacked upon a lower level media transport such as UDP and ICE. Currently a higher level transport is not synchronized with its lower level transport that may introduce use-after-free issue. This vulnerability affects applications that have SRTP capability (`PJMEDIA_HAS_SRTP` is set) and use underlying media transport other than UDP. This vulnerability’s impact may range from unexpected application termination to control flow hijack/memory corruption. The patch is available as a commit in the master branch.","status":"published","published":"2023-10-06T14:15:12.02Z","modified":"2026-10-26T18:03:06.103339618Z","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":"2026-11-02T15:45:39.980321Z"},{"id":"UBUNTU-CVE-2023-38703","description":"PJSIP is a free and open source multimedia communication library written in C with high level API in C, C++, Java, C#, and Python languages. SRTP is a higher level media transport which is stacked upon a lower level media transport such as UDP and ICE. Currently a higher level transport is not synchronized with its lower level transport that may introduce use-after-free issue. This vulnerability affects applications that have SRTP capability (`PJMEDIA_HAS_SRTP` is set) and use underlying media transport other than UDP. This vulnerability’s impact may range from unexpected application termination to control flow hijack/memory corruption. 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