CVE-2018-7284
Published: 22 February 2018
A Buffer Overflow issue was discovered in Asterisk through 13.19.1, 14.x through 14.7.5, and 15.x through 15.2.1, and Certified Asterisk through 13.18-cert2. When processing a SUBSCRIBE request, the res_pjsip_pubsub module stores the accepted formats present in the Accept headers of the request. This code did not limit the number of headers it processed, despite having a fixed limit of 32. If more than 32 Accept headers were present, the code would write outside of its memory and cause a crash.
Priority
Status
Package | Release | Status |
---|---|---|
asterisk Launchpad, Ubuntu, Debian |
artful |
Ignored
(end of life)
|
bionic |
Needed
|
|
cosmic |
Not vulnerable
(1:13.22.0~dfsg-2)
|
|
disco |
Not vulnerable
(1:16.2.1~dfsg-1)
|
|
eoan |
Not vulnerable
(1:16.2.1~dfsg-1)
|
|
focal |
Not vulnerable
(1:16.2.1~dfsg-1)
|
|
trusty |
Does not exist
(trusty was needs-triage)
|
|
upstream |
Released
(1:13.14.1~dfsg-2+deb9u4)
|
|
impish |
Not vulnerable
(1:16.2.1~dfsg-1)
|
|
groovy |
Not vulnerable
(1:16.2.1~dfsg-1)
|
|
hirsute |
Not vulnerable
(1:16.2.1~dfsg-1)
|
|
xenial |
Needed
|
|
jammy |
Not vulnerable
(1:16.2.1~dfsg-1)
|
|
kinetic |
Not vulnerable
(1:16.2.1~dfsg-1)
|
|
lunar |
Not vulnerable
(1:16.2.1~dfsg-1)
|
|
mantic |
Not vulnerable
(1:16.2.1~dfsg-1)
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.5 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |