CVE-2021-32686
Denial of Service in PJSIP
02 Description
Denial of Service in PJSIP
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 2.06% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 80.9% of scored records. A rank, not a probability.
- NVD base score
- 5.9 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2021-07-23 00:00Z5 YR AGO
- Last updated
- 2025-11-04 16:09Z11 MO AGO
- Reserved
- 2021-05-12
- Assigning CNA
- GitHub_M
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 5.9)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')Class
- Data version
- 5.2
- Document digest
- d07ddfe7d40ab15b137c7d89d5aad1e590d12368e622942fc1ec5aefaec79920
05 Affected products
06 References
- github.comhttps://github.com/pjsip/pjproject/security/advisories/GHSA-cv8x-p47p-99wr
- github.comhttps://github.com/pjsip/pjproject/pull/2716
- github.comhttps://github.com/pjsip/pjproject/commit/d5f95aa066f878b0aef6a64e60b61e8626e664cd
- github.comhttps://github.com/pjsip/pjproject/releases/tag/2.11.1
- www.debian.orgDSA-4999https://www.debian.org/security/2021/dsa-4999
- lists.debian.org[debian-lts-announce] 20220328 [SECURITY] [DLA 2962-1] pjproject security updatehttps://lists.debian.org/debian-lts-announce/2022/03/msg00035.html
- security.gentoo.orgGLSA-202210-37https://security.gentoo.org/glsa/202210-37
- lists.debian.orghttps://lists.debian.org/debian-lts-announce/2024/09/msg00030.html
07 Fixed in
Debian 12
- ring Fixed in 20230206.0~ds1-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- asterisk Fixed in 1:16.16.1~dfsg-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 16.04 LTS
- pjproject No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 18.04 LTS
- pjproject Fixed in 2.7.2~dfsg-1ubuntu0.1~esm1Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.