Lucene search

K
ubuntucveUbuntu.comUB:CVE-2022-42705
HistoryDec 05, 2022 - 12:00 a.m.

CVE-2022-42705

2022-12-0500:00:00
ubuntu.com
ubuntu.com
16
asterisk
use-after-free
vulnerability
res_pjsip_pubsub.c
denial of service
remote attacker
authenticated
subscription
reliable transport
crash

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%

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.

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%