CVE-2022-42705

2022-12-0521:15:10

Debian Security Bug Tracker

security-tracker.debian.org

vulnerability

sangoma asterisk

use-after-free

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS

0.004

Percentile

74.4%

JSON

A use-after-free in res_pjsip_pubsub.c in Sangoma Asterisk 16.28, 18.14, 19.6, and certified/18.9-cert2 may allow a remote authenticated attacker to crash Asterisk (denial of service) by performing activity on a subscription via a reliable transport at the same time that Asterisk is also performing activity on that subscription.

OSVersionArchitecturePackageVersionFilename
Debian11allasterisk< 1:16.28.0~dfsg-0+deb11u2asterisk_1:16.28.0~dfsg-0+deb11u2_all.deb
Debian999allasterisk< 1:20.0.1~dfsg+~cs6.12.40431414-1asterisk_1:20.0.1~dfsg+~cs6.12.40431414-1_all.deb

OS	Version	Architecture	Package	Version	Filename
Debian	11	all	asterisk	< 1:16.28.0~dfsg-0+deb11u2	asterisk_1:16.28.0~dfsg-0+deb11u2_all.deb
Debian	999	all	asterisk	< 1:20.0.1~dfsg+~cs6.12.40431414-1	asterisk_1:20.0.1~dfsg+~cs6.12.40431414-1_all.deb