{"answers":{"affected":"It affects 4 products.","exploited":"There is no known exploitation of CVE-2022-21723 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2022-21723 is a critical memory corruption vulnerability in Debian Debian Linux, published on 27 Jan 2022. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2022-21723 and fix it if it is affected.\n\nWhat it is: CVE-2022-21723 is a critical memory corruption vulnerability in Debian Debian Linux, published on 27 Jan 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2022-21723 in the wild and no public exploit code.\n\nAffected product: Debian Debian Linux. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2022-21723/ (Markdown: https://insights.sbomify.com/CVE-2022-21723/index.md)","id":"CVE-2022-21723","markdown":"https://insights.sbomify.com/CVE-2022-21723/index.md","name":"CVE-2022-21723","record":{"aliases":["ALPINE-CVE-2022-21723","DEBIAN-CVE-2022-21723","GHSA-7fw8-54cv-r7pm","UBUNTU-CVE-2022-21723"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["denial_of_service","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"PJSIP multimedia library","requires_auth":"none","summary":"Attackers can trigger out-of-bounds reads in PJSIP by sending malformed SIP multipart messages, potentially causing crashes or data leaks.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"certified_asterisk","vendor":"asterisk"},{"product":"debian_linux","vendor":"debian"},{"product":"asterisk","vendor":"sangoma"},{"product":"pjsip","vendor":"teluu"}],"cvss":{"score":9.1,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-125","name":"Out-of-bounds Read"}],"description":"PJSIP is a free and open source multimedia communication library written in C language implementing standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE. In versions 2.11.1 and prior, parsing an incoming SIP message that contains a malformed multipart can potentially cause out-of-bound read access. This issue affects all PJSIP users that accept SIP multipart. The patch is available as commit in the `master` branch. There are no known workarounds.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Out-of-bounds read in multipart parsing in PJSIP","id":"CVE-2022-21723","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"debian:debian_linux","products":["debian:debian_linux"],"type":"memory_corruption","year":"2022"},"n_packages":0,"n_references":9,"next":{"headline":"Unchecked Class Instantiation when providing Plugin Classes","id":"CVE-2022-21724"},"packages":[],"prev":{"headline":"Potential out-of-bound read during RTP/RTCP parsing in PJSIP","id":"CVE-2022-21722"},"products":["pjproject"],"published":"2022-01-27","related":[{"cvss_score":8.1,"headline":"Use after free in PJSIP","id":"CVE-2022-23608","kev_date_added":null,"published":"2022-02-22"},{"cvss_score":7.5,"headline":"Denial of service in n/a","id":"CVE-2017-9358","kev_date_added":null,"published":"2017-06-02"},{"cvss_score":7.3,"headline":"Potential integer underflow upon receiving STUN message in PJSIP","id":"CVE-2021-37706","kev_date_added":null,"published":"2021-12-22"},{"cvss_score":6.5,"headline":"Null dereference in n/a","id":"CVE-2021-46837","kev_date_added":null,"published":"2022-08-30"},{"cvss_score":6.5,"headline":"Denial of service in n/a","id":"CVE-2020-28242","kev_date_added":null,"published":"2020-11-06"},{"cvss_score":5,"headline":"Denial of service in n/a","id":"CVE-2013-2686","kev_date_added":null,"published":"2013-03-29"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-11-04","vendors":["pjsip"]},"summary":"Attackers can trigger out-of-bounds reads in PJSIP by sending malformed SIP multipart messages, potentially causing crashes or data leaks.","url":"https://insights.sbomify.com/CVE-2022-21723/"}