🛡️ CVE-2022-23608 — asterisk
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.
How this vulnerability can be exploited
This issue can be reached over the network, attack complexity is high, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.
Weakness class
CVE-2022-23608 is classified as CWE-416: Use After Free. Memory is used after being released, so its contents may already belong to something else.
Affected software
CVE-2022-23608 is recorded against 4 packages.
- asterisk (from 19.0.0 up to 19.2.1)
- certified-asterisk
- debian-linux
- pjsip (fixed in 2.11.1)
Timeline and source
Published on 22 February 2022 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.
References
packetstormsecurity.com
seclists.org
github.com
github.com
lists.debian.org
lists.debian.org
lists.debian.org
lists.debian.org
security.gentoo.org
www.debian.org
packetstormsecurity.com
seclists.org
github.com
github.com
lists.debian.org
CVE-2022-23608 on other distributions
Each distribution ships its own build and its own fixed version. Pick the one you run:
Details
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| asterisk | 19.0.0 | 19.2.1 |
| certified-asterisk | — | — |
| debian-linux | — | — |
| pjsip | — | 2.11.1 |
References
Similar Threats
- Unknown ALPINE-CVE-2024-53566
- Unknown ALPINE-CVE-2024-42491
- Unknown ALPINE-CVE-2024-42365
- Unknown ALPINE-CVE-2024-35190
- Unknown ALPINE-CVE-2023-37457
More CVE 2022 advisories
Browse all of CVE 2022 in the advisory index.
Site Security Check
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