CVE-2020-11945
Published: 23 April 2020
An issue was discovered in Squid before 5.0.2. A remote attacker can replay a sniffed Digest Authentication nonce to gain access to resources that are otherwise forbidden. This occurs because the attacker can overflow the nonce reference counter (a short integer). Remote code execution may occur if the pooled token credentials are freed (instead of replayed as valid credentials).
Priority
Status
Package | Release | Status |
---|---|---|
squid Launchpad, Ubuntu, Debian |
focal |
Released
(4.10-1ubuntu1.1)
|
hirsute |
Released
(4.10-1ubuntu2)
|
|
bionic |
Does not exist
|
|
eoan |
Released
(4.8-1ubuntu2.3)
|
|
groovy |
Released
(4.10-1ubuntu2)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11)
|
|
xenial |
Does not exist
|
|
Patches: upstream: http://www.squid-cache.org/Versions/v4/changesets/squid-4-eeebf0f37a72a2de08348e85ae34b02c34e9a811.patch |
||
squid3 Launchpad, Ubuntu, Debian |
hirsute |
Does not exist
|
bionic |
Released
(3.5.27-1ubuntu1.6)
|
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
groovy |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Needs triage
|
|
xenial |
Released
(3.5.12-1ubuntu7.11)
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 9.8 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | High |
Availability impact | High |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |