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Fencer Vulns
high 7.5

CVE-2022-39244 json

Buffer overflow in pjlib scanner and pjmedia

published 2022-10-06 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-41764

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.5%
EPSS 1.5% chance of exploitation in 30 days, percentile 74%
public exploits
0
none known

Summary

PJSIP is a free and open source multimedia communication library written in C. In versions of PJSIP prior to 2.13 the PJSIP parser, PJMEDIA RTP decoder, and PJMEDIA SDP parser are affeced by a buffer overflow vulnerability. Users connecting to untrusted clients are at risk. This issue has been patched and is available as commit c4d3498 in the master branch and will be included in releases 2.13 and later. Users are advised to upgrade. There are no known workarounds for this issue.

Patch / fix

  • pjsip pjsip 2.13
  • ring Debian 12 20230206.0~ds1-1
  • asterisk Debian 14 1:20.0.1~dfsg+~cs6.12.40431414-1

debian advisories DEBIAN-CVE-2022-39244

  • ring Ubuntu 20.04 LTS 20190215.1.f152c98~ds1-1+deb10u2build0.20.04.1
  • ring Ubuntu Pro 18.04 LTS 20180228.1.503da2b~ds1-1ubuntu0.1~esm1

ubuntu advisories UBUNTU-CVE-2022-39244

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • pjproject Alpine 3.24, Alpine 3.23, Alpine 3.22 +4 more 2.13-r0

alpine advisories ALPINE-CVE-2022-39244

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2022-39244 updated cvss 7.5

pjsip: buffer overflow in he PJSIP parser, PJMEDIA RTP decoder, and PJMEDIA SDP parser

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
18 mo ago

Exploit prediction

1.50% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • pjsip pjproject

Classification

Weakness
  • CWE-120 Buffer Copy without Checking Size of Input

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.