HOMEVULNERABILITIESCVE-2022-23608
CRITICAL

CVE-2022-23608

CWE-416Published: February 22, 2022· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official 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 up to and including 2.11.1 when in a dialog set (or forking) scenario, a hash key shared by multiple UAC dialogs can potentially be prematurely freed when one of the dialogs is destroyed . The issue may cause a dialog set to be registered in the hash table multiple times (with different hash keys) leading to undefined behavior such as dialog list collision which eventually leading to endless loop. A patch is available in commit db3235953baa56d2fb0e276ca510fefca751643f which will be included in the next release. There are no known workarounds for this issue.

NVD Source

Technical Analysis

CVE-2022-23608 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-416): Use-after-free vulnerabilities involve accessing memory after it has been freed, often enabling arbitrary code execution.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

asterisk1 product(s)
certified asterisk
Debian1 product(s)
debian linux
sangoma1 product(s)
asterisk
teluu1 product(s)
pjsip
Source: NVD CPE · 6 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttp://seclists.org/fulldisclosure/2022/Mar/1
PATCHhttps://github.com/pjsip/pjproject/commit/db3235953baa56d2fb0e276ca510fefca751643f
PATCHhttps://github.com/pjsip/pjproject/security/advisories/GHSA-ffff-m5fm-qm62
PATCHhttp://seclists.org/fulldisclosure/2022/Mar/1
PATCHhttps://github.com/pjsip/pjproject/commit/db3235953baa56d2fb0e276ca510fefca751643f
PATCHhttps://github.com/pjsip/pjproject/security/advisories/GHSA-ffff-m5fm-qm62
ADVISORYhttp://packetstormsecurity.com/files/166226/Asterisk-Project-Security-Advisory-AST-2022-005.html
ADVISORYhttps://lists.debian.org/debian-lts-announce/2022/03/msg00035.html
ADVISORYhttps://lists.debian.org/debian-lts-announce/2022/03/msg00040.html
ADVISORYhttps://lists.debian.org/debian-lts-announce/2022/11/msg00021.html
ADVISORYhttps://security.gentoo.org/glsa/202210-37
ADVISORYhttps://www.debian.org/security/2022/dsa-5285
ADVISORYhttp://packetstormsecurity.com/files/166226/Asterisk-Project-Security-Advisory-AST-2022-005.html
ADVISORYhttps://lists.debian.org/debian-lts-announce/2022/03/msg00035.html
ADVISORYhttps://lists.debian.org/debian-lts-announce/2022/03/msg00040.html
ADVISORYhttps://lists.debian.org/debian-lts-announce/2022/11/msg00021.html
ADVISORYhttps://security.gentoo.org/glsa/202210-37
ADVISORYhttps://www.debian.org/security/2022/dsa-5285

All References (21)

→
http://packetstormsecurity.com/files/166226/Asterisk-Project-Security-Advisory-AST-2022-005.htmlThird Party Advisory · VDB Entry
→
http://seclists.org/fulldisclosure/2022/Mar/1Mailing List · Patch · Third Party Advisory
→
https://github.com/pjsip/pjproject/commit/db3235953baa56d2fb0e276ca510fefca751643fPatch · Third Party Advisory
→
https://github.com/pjsip/pjproject/security/advisories/GHSA-ffff-m5fm-qm62Issue Tracking · Patch · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2022/03/msg00035.htmlMailing List · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2022/03/msg00040.htmlMailing List · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2022/11/msg00021.htmlMailing List · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2023/08/msg00038.html
→
https://security.gentoo.org/glsa/202210-37Third Party Advisory
→
https://www.debian.org/security/2022/dsa-5285Third Party Advisory
→
http://packetstormsecurity.com/files/166226/Asterisk-Project-Security-Advisory-AST-2022-005.htmlThird Party Advisory · VDB Entry
→
http://seclists.org/fulldisclosure/2022/Mar/1Mailing List · Patch · Third Party Advisory
→
https://github.com/pjsip/pjproject/commit/db3235953baa56d2fb0e276ca510fefca751643fPatch · Third Party Advisory
→
https://github.com/pjsip/pjproject/security/advisories/GHSA-ffff-m5fm-qm62Issue Tracking · Patch · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2022/03/msg00035.htmlMailing List · Third Party Advisory

Quick Facts

CVE IDCVE-2022-23608
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-416
CISA KEVNo
Affected4 vendor(s)
PublishedFeb 22, 2022

Related CVEs (CWE-416)

CVE-2012-5140
10.0
CVE-2012-5139
10.0
CVE-2012-5137
10.0
CVE-2010-2302
10.0
CVE-2026-13782
10.0
CVE-2014-1512
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2022-23608 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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