Use after free in PJSIP
Priority MEDIUM 50CWE-416Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-416 and the CVSS impact.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.04022 90th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| pjsip | pjproject | up to 2.11.1 | — | No fix listed | CNA |
- pjproject Vendorpjsip Affected up to 2.11.1 Fixed in — No fix listed CNA
CPE configurations NVD · 17
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:teluu:pjsip:*:*:*:*:*:*:*:* | up to 2.11.1 | Vulnerable | teluu |
| cpe:2.3:a:asterisk:certified_asterisk:*:*:*:*:*:*:*:* | before 16.8.0 | Vulnerable | asterisk |
| cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert1:*:*:*:*:*:* | 16.8.0 cert1 | Vulnerable | asterisk |
| cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert10:*:*:*:*:*:* | 16.8.0 cert10 | Vulnerable | asterisk |
| cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert11:*:*:*:*:*:* | 16.8.0 cert11 | Vulnerable | asterisk |
| cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert12:*:*:*:*:*:* | 16.8.0 cert12 | Vulnerable | asterisk |
| cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert2:*:*:*:*:*:* | 16.8.0 cert2 | Vulnerable | asterisk |
| cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert3:*:*:*:*:*:* | 16.8.0 cert3 | Vulnerable | asterisk |
| cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert4:*:*:*:*:*:* | 16.8.0 cert4 | Vulnerable | asterisk |
| cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert5:*:*:*:*:*:* | 16.8.0 cert5 | Vulnerable | asterisk |
- cpe:2.3:a:teluu:pjsip:*:*:*:*:*:*:*:* Versions up to 2.11.1 Vulnerable ·teluu
- cpe:2.3:a:asterisk:certified_asterisk:*:*:*:*:*:*:*:* Versions before 16.8.0 Vulnerable ·asterisk
- cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert1:*:*:*:*:*:* Versions 16.8.0 cert1 Vulnerable ·asterisk
- cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert10:*:*:*:*:*:* Versions 16.8.0 cert10 Vulnerable ·asterisk
- cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert11:*:*:*:*:*:* Versions 16.8.0 cert11 Vulnerable ·asterisk
- cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert12:*:*:*:*:*:* Versions 16.8.0 cert12 Vulnerable ·asterisk
- cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert2:*:*:*:*:*:* Versions 16.8.0 cert2 Vulnerable ·asterisk
- cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert3:*:*:*:*:*:* Versions 16.8.0 cert3 Vulnerable ·asterisk
- cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert4:*:*:*:*:*:* Versions 16.8.0 cert4 Vulnerable ·asterisk
- cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert5:*:*:*:*:*:* Versions 16.8.0 cert5 Vulnerable ·asterisk
Show 7 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert6:*:*:*:*:*:* | 16.8.0 cert6 | Vulnerable | asterisk |
| cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert7:*:*:*:*:*:* | 16.8.0 cert7 | Vulnerable | asterisk |
| cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert8:*:*:*:*:*:* | 16.8.0 cert8 | Vulnerable | asterisk |
| cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert9:*:*:*:*:*:* | 16.8.0 cert9 | Vulnerable | asterisk |
| cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:* | 16.0.0 to before 16.24.1; 18.0.0 to before 18.10.1; 19.0.0 to before 19.2.1 | Vulnerable | Sangoma |
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 9.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 10.0 | Vulnerable | Debian |
- cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert6:*:*:*:*:*:* Versions 16.8.0 cert6 Vulnerable ·asterisk
- cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert7:*:*:*:*:*:* Versions 16.8.0 cert7 Vulnerable ·asterisk
- cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert8:*:*:*:*:*:* Versions 16.8.0 cert8 Vulnerable ·asterisk
- cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert9:*:*:*:*:*:* Versions 16.8.0 cert9 Vulnerable ·asterisk
- cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:* Versions 16.0.0 to before 16.24.1; 18.0.0 to before 18.10.1; 19.0.0 to before 19.2.1 Vulnerable ·Sangoma
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2022-23608
References
Patch 3
Advisory 6
- http://packetstormsecurity.com/files/166226/Asterisk-Project-Security-Advisory-AST-2022-005.html
- [debian-lts-announce] 20220328 [SECURITY] [DLA 2962-1] pjproject security update
- [debian-lts-announce] 20220331 [SECURITY] [DLA 2962-2] pjproject regression update
- GLSA-202210-37
- [debian-lts-announce] 20221117 [SECURITY] [DLA 3194-1] asterisk security update
- DSA-5285
More pjsip vulnerabilities
- TI-2022-13076 Potential stack buffer overflow when parsing message as a STUN client CVSS 3.1CRITICAL 9.8
- TI-2022-08599 Potential out-of-bound read/write in PJSIP CVSS 3.1CRITICAL 9.8
- TI-2023-20051 PJSIP has use-after-free vulnerability in SRTP media transport CVSS 3.1CRITICAL 9.8
- TI-2022-06096 Out-of-bounds read in multipart parsing in PJSIP CVSS 3.1CRITICAL 9.1
- TI-2022-06095 Potential out-of-bound read during RTP/RTCP parsing in PJSIP CVSS 3.1CRITICAL 9.1
- TI-2021-15581 Potential integer underflow upon receiving STUN message in PJSIP CVSS 3.1CRITICAL 9.8
Sources
- CVE-2022-23608 · CVE Program
- CVE-2022-23608 · NVD
- FIRST EPSS
- CVE-2022-23608 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences