DEBIAN-CVE-2026-84975

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Source

https://security-tracker.debian.org/tracker/CVE-2026-84975

Import Source

https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-84975.json

JSON Data

https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-84975

Upstream

CVE-2026-84975

Published

2026-09-18T18:17:17Z

Modified

2026-09-19T07:00:08Z

Severity

7.4 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator

Summary

[none]

Details

PJSIP is a free and open source multimedia communication library written in C. In 2.17 and earlier, the OpenSSL and GnuTLS backends in pjlib/src/pj/ssl_sock_ossl.c and pjlib/src/pj/ssl_sock_gtls.c copy DNS SubjectAltName values with string functions that recalculate their length and truncate an embedded NUL byte. With server verification enabled through --tls-verify-server for the PJSIP TLS/SIPS transport, a certificate containing a DNS SubjectAltName formed from the target hostname prefix followed by an embedded NUL and an attacker-controlled suffix can therefore be accepted for the prefix hostname. An attacker who possesses such a certificate from a trusted issuer and can intercept the connection can impersonate the target server, complete the SIP session, and receive REGISTER credentials. The mbedTLS backend is not affected because it preserves the explicit string length. No fixed version is available as of this review.

References

https://security-tracker.debian.org/tracker/CVE-2026-84975

Affected packages

Debian:14 / asterisk

Package

Name: asterisk
Purl: pkg:deb/debian/asterisk?arch=source&distro=forky

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

0.*

0.1.11-3

0.1.11-3woody1

1:1.*

1:1.0.5-2

1:1.0.5-4

1:1.0.6-1

1:1.0.6-2

1:1.0.7-1

1:1.0.7.dfsg.1-1

1:1.0.7.dfsg.1-2

1:1.0.7.dfsg.1-2sarge1

1:1.0.7.dfsg.1-2sarge2

1:1.0.7.dfsg.1-2sarge3

1:1.0.7.dfsg.1-2sarge4

1:1.0.7.dfsg.1-2sarge5

1:1.0.7.dfsg.1-2sarge6

1:1.0.9.dfsg-1

1:1.0.9.dfsg-3

1:1.0.9.dfsg-4

1:1.0.9.dfsg-5

1:1.0.9.dfsg-6

1:1.2.0-beta1.dfsg-1

1:1.2.0-beta2.dfsg-1

1:1.2.0-beta2.dfsg-2

1:1.2.0-beta2.dfsg-3

1:1.2.0-rc1.dfsg-1

1:1.2.0-rc2.dfsg-1

1:1.2.0.dfsg-1

1:1.2.0.dfsg-2

1:1.2.0.dfsg-3

1:1.2.0.dfsg-4

1:1.2.0.dfsg-5

1:1.2.0.dfsg-6

1:1.2.1.dfsg-1

1:1.2.1.dfsg-2

1:1.2.1.dfsg-3

1:1.2.4.dfsg-1

1:1.2.4.dfsg-2

1:1.2.4.dfsg-3

1:1.2.4.dfsg-4

1:1.2.4.dfsg-5

1:1.2.4.dfsg-6

1:1.2.4.dfsg-6+b1

1:1.2.4.dfsg-7

1:1.2.7.1.dfsg-1

1:1.2.7.1.dfsg-2

1:1.2.7.1.dfsg-3

1:1.2.9.1.dfsg-1

1:1.2.10.dfsg-1

1:1.2.10.dfsg-1bpo1

1:1.2.10.dfsg-2

1:1.2.10.dfsg-3

1:1.2.11.dfsg-1

1:1.2.12.1.dfsg-1

1:1.2.13~dfsg-1

1:1.2.13~dfsg-2

1:1.2.13~dfsg-2etch1

1:1.2.13~dfsg-2etch2

1:1.2.13~dfsg-2etch3

1:1.2.13~dfsg-2etch4

1:1.2.14~dfsg-1

1:1.2.14~dfsg-2

1:1.2.14~dfsg-3

1:1.2.14~dfsg-4

1:1.2.15~dfsg-1

1:1.2.16~dfsg-1

1:1.2.17~dfsg-1

1:1.4.2~dfsg-1

1:1.4.2~dfsg-2

1:1.4.2~dfsg-3

1:1.4.2~dfsg-4

1:1.4.2~dfsg-5

1:1.4.3~dfsg-1

1:1.4.4~dfsg-1

1:1.4.4~dfsg-2

1:1.4.4~dfsg-3

1:1.4.5~dfsg-1

1:1.4.6~dfsg-1

1:1.4.8~dfsg-1

1:1.4.8~dfsg-2

1:1.4.9~dfsg-1

1:1.4.10~dfsg-1

1:1.4.11~dfsg-1

1:1.4.11~dfsg-2

1:1.4.11~dfsg-3

1:1.4.11~dfsg-4

1:1.4.13~dfsg-1

1:1.4.15~dfsg-1

1:1.4.16.2~dfsg-1

1:1.4.16.2~dfsg-2

1:1.4.17~dfsg-1

1:1.4.17~dfsg-2

1:1.4.18~dfsg-1

1:1.4.18.1~dfsg-1

1:1.4.19.1~dfsg-1

1:1.4.20~dfsg-1

1:1.4.21.1~dfsg-1

1:1.4.21.2~dfsg-1

1:1.4.21.2~dfsg-2

1:1.4.21.2~dfsg-3

1:1.4.21.2~dfsg-3+lenny1

1:1.4.21.2~dfsg-3+lenny2

1:1.4.21.2~dfsg-3+lenny2.1

1:1.4.21.2~dfsg-3+lenny3

1:1.4.21.2~dfsg-3+lenny5

1:1.4.21.2~dfsg-3+lenny6

1:1.4.21.2~dfsg-3.1

1:1.6.1.0~dfsg~rc3-1

1:1.6.1.0~dfsg-1

1:1.6.2.0~dfsg~beta3-1

1:1.6.2.0~dfsg~rc1-1

1:1.6.2.0~rc3-1

1:1.6.2.0~rc3-2

1:1.6.2.0~rc6-1

1:1.6.2.0~rc7-1

1:1.6.2.0-1

1:1.6.2.2-1

1:1.6.2.6-1

1:1.6.2.7-1

1:1.6.2.9-1~bpo50+1

1:1.6.2.9-1~bpo50+2

1:1.6.2.9-1~bpo50+3

1:1.6.2.9-1

1:1.6.2.9-2

1:1.6.2.9-2+squeeze1

1:1.6.2.9-2+squeeze2

1:1.6.2.9-2+squeeze3

1:1.6.2.9-2+squeeze4

1:1.6.2.9-2+squeeze5

1:1.6.2.9-2+squeeze6

1:1.6.2.9-2+squeeze7

1:1.6.2.9-2+squeeze8

1:1.6.2.9-2+squeeze9

1:1.6.2.9-2+squeeze10

1:1.6.2.9-2+squeeze11

1:1.6.2.9-2+squeeze12

1:1.8.3.3-1

1:1.8.4-1

1:1.8.4.2-1

1:1.8.4.3-1

1:1.8.4.4~dfsg-1

1:1.8.4.4~dfsg-2

1:1.8.7.1~dfsg-1

1:1.8.7.1~dfsg-2

1:1.8.7.1~dfsg-3

1:1.8.8.0~dfsg-1

1:1.8.8.2~dfsg-1

1:1.8.10.0~dfsg-1

1:1.8.10.1~dfsg-1

1:1.8.11.1~dfsg-1

1:1.8.13.0~dfsg-1~bpo60+1

1:1.8.13.0~dfsg-1

1:1.8.13.1~dfsg-1~bpo60+1

1:1.8.13.1~dfsg-1

1:1.8.13.1~dfsg-1+powerpcspe1

1:1.8.13.1~dfsg-2

1:1.8.13.1~dfsg-3

1:11.*

1:11.5.1~dfsg-1

1:11.5.1~dfsg-2

1:11.5.1~dfsg1-1~bpo70+1

1:11.5.1~dfsg1-1

1:11.6.0~dfsg-1

1:11.6.0~dfsg-2

1:11.6.0~dfsg-3

1:11.7.0~dfsg-1~bpo70+1

1:11.7.0~dfsg-1

1:11.7.0~dfsg-1+e1

1:11.8.0~dfsg-1

1:11.8.0~dfsg-2

1:11.8.1~dfsg-1~bpo70+1

1:11.8.1~dfsg-1

1:11.9.0~dfsg-1

1:11.9.0~dfsg-2~bpo70+1

1:11.9.0~dfsg-2

1:11.10.0~dfsg-1~bpo70+1

1:11.10.0~dfsg-1

1:11.10.2~dfsg-1~bpo70+1

1:11.10.2~dfsg-1

1:11.11.0~dfsg-1~bpo70+1

1:11.11.0~dfsg-1

1:11.11.0~dfsg-2

1:11.12.0~dfsg-1~bpo70+1

1:11.12.0~dfsg-1

1:11.12.1~dfsg-1

1:11.13.0~dfsg-1~bpo70+1

1:11.13.0~dfsg-1

1:11.13.1~dfsg-1

1:11.13.1~dfsg-2~bpo70+1

1:11.13.1~dfsg-2

1:13.*

1:13.0.0~dfsg-1

1:13.0.0~dfsg-2

1:13.1.0~dfsg-1

1:13.1.0~dfsg-1.1

1:13.7.2~dfsg-1

1:13.8.0~dfsg-1

1:13.8.2~dfsg-1

1:13.9.1~dfsg-1

1:13.9.1~dfsg-2

1:13.10.0~dfsg-1

1:13.11.2~dfsg-1

1:13.12.1~dfsg-1

1:13.12.2~dfsg-1

1:13.12.2~dfsg-2

1:13.13.1~dfsg-1

1:13.13.1~dfsg-2

1:13.13.1~dfsg-3~exp1

1:13.13.1~dfsg-3

1:13.13.1~dfsg-4

1:13.14.0~dfsg-1~exp1

1:13.14.0~dfsg-1

1:13.14.1~dfsg-1

1:13.14.1~dfsg-2

1:13.17.0~dfsg-1

1:13.17.0~dfsg-2

1:13.17.1~dfsg-1

1:13.17.2~dfsg-1

1:13.17.2~dfsg-2

1:13.18.1~dfsg-1

1:13.18.3~dfsg-1

1:13.18.5~dfsg-1

1:13.20.0~dfsg-1

1:13.22.0~dfsg-1

1:13.22.0~dfsg-2

1:13.23.1~dfsg-1

1:13.23.1~dfsg-2

1:16.*

1:16.1.0~dfsg-1

1:16.1.0~dfsg-2

1:16.1.0~dfsg-3

1:16.1.0~dfsg-4

1:16.1.1~dfsg-1

1:16.2.0~dfsg-1

1:16.2.1~dfsg-1

1:16.2.1~dfsg-2

1:16.10.0~dfsg-1

1:16.12.0~dfsg-1

1:16.15.0~dfsg-1

1:16.15.1~dfsg-1

1:16.16.1~dfsg-1~bpo10+1

1:16.16.1~dfsg-1

1:16.16.1~dfsg-2

1:16.16.1~dfsg-3

1:16.16.1~dfsg-4

1:16.16.1~dfsg+~2.10-1

1:16.16.1~dfsg+~2.10-2

1:16.23.0~dfsg+~2.10-1

1:16.23.0~dfsg+~cs6.10.20220309-1

1:16.23.0~dfsg+~cs6.10.20220309-2

1:16.23.0~dfsg+~cs6.10.40431411-1

1:18.*

1:18.9.0~dfsg+~cs6.10.40431411-1

1:18.10.0~dfsg+~cs6.10.40431411-1

1:18.10.0~dfsg+~cs6.10.40431411-2

1:18.10.1~dfsg+~cs6.10.40431411-1

1:18.11.1~dfsg+~cs6.10.40431413-1

1:18.11.2~dfsg+~cs6.10.40431413-1

1:18.12.0~dfsg+~cs6.12.40431413-1

1:18.14.0~~rc1~dfsg+~cs6.12.40431414-1

1:18.14.0~dfsg+~cs6.12.40431414-1

1:20.*

1:20.0.0~~rc1~dfsg+~cs6.12.40431414-1

1:20.0.0~~rc2~dfsg+~cs6.12.40431414-1

1:20.0.0~dfsg+~cs6.12.40431414-1

1:20.0.0~dfsg+~cs6.12.40431414-2

1:20.0.1~dfsg+~cs6.12.40431414-1

1:20.1.0~~rc2~dfsg+~cs6.12.40431414-1

1:20.1.0~dfsg+~cs6.12.40431414-1

1:20.2.1~dfsg+~cs6.13.40431413-1

1:20.3.0~dfsg+~cs6.13.40431413-1

1:20.4.0~dfsg+~cs6.13.40431414-1

1:20.4.0~dfsg+~cs6.13.40431414-2

1:20.5.0~dfsg+~cs6.13.40431414-1

1:20.5.1~dfsg+~cs6.13.40431414-1

1:20.5.2~dfsg+~cs6.13.40431414-1

1:20.6.0~dfsg+~cs6.13.40431414-1

1:20.6.0~dfsg+~cs6.13.40431414-2

1:20.8.1~dfsg+~cs6.14.40431414-1

1:20.9.3~dfsg+~cs6.14.60671435-1

1:22.*

1:22.0.0~~rc2~dfsg+~cs6.14.60671435-1

1:22.0.0~dfsg+~cs6.14.60671435-1

1:22.1.0~dfsg+~cs6.14.60671435-1

1:22.1.1~dfsg+~cs6.14.60671435-1

1:22.2.0~dfsg+~cs6.15.60671435-1

1:22.2.0~dfsg+~cs6.15.60671435-2

1:22.3.0~~rc1~dfsg+~cs6.15.60671435-1

1:22.3.0~dfsg+~cs6.15.60671435-1

1:22.4.1~dfsg+~cs6.15.60671435-1

1:22.4.1~dfsg+~cs6.15.60671435-2

1:22.5.1~dfsg+~cs6.15.60671435-1

1:22.5.2~dfsg+~cs6.15.60671435-1

1:22.6.0~dfsg+~cs6.15.60671435-1

1:22.7.0~dfsg+~cs6.15.60671435-1

1:22.8.0+dfsg+~cs6.15.60671435-1

1:22.8.2+dfsg+~cs6.15.60671435-1

1:22.9.0+dfsg+~cs6.16.60671434-1

1:22.10.0+dfsg+~cs6.17.60671434-1

1:22.10.0+dfsg+~cs6.17.60671434-2

1:22.10.0+dfsg+~cs6.17.60671434-3

1:22.10.1+dfsg+~cs6.17.60671434-1

1:22.11.0-rc2+dfsg+~cs6.17.60671434-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-84975.json"