CVE-2021-28651
Published: 27 May 2021
An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to a buffer-management bug, it allows a denial of service. When resolving a request with the urn: scheme, the parser leaks a small amount of memory. However, there is an unspecified attack methodology that can easily trigger a large amount of memory consumption.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
squid Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| focal |
Released
(4.10-1ubuntu1.4)
|
|
| groovy |
Released
(4.13-1ubuntu2.2)
|
|
| hirsute |
Released
(4.13-1ubuntu4.1)
|
|
| impish |
Released
(4.13-10ubuntu1)
|
|
| jammy |
Released
(4.13-10ubuntu1)
|
|
| kinetic |
Released
(4.13-10ubuntu1)
|
|
| lunar |
Released
(4.13-10ubuntu1)
|
|
| mantic |
Released
(4.13-10ubuntu1)
|
|
| noble |
Released
(4.13-10ubuntu1)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.15,4.13-10)
|
|
| xenial |
Does not exist
|
|
|
Patches: upstream: http://www.squid-cache.org/Versions/v4/changesets/squid-4-a975fd5aedc866629214aaaccb38376855351899.patch upstream: https://github.com/squid-cache/squid/commit/a975fd5aedc866629214aaaccb38376855351899 |
||
|
squid3 Launchpad, Ubuntu, Debian |
bionic |
Released
(3.5.27-1ubuntu1.11)
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
| mantic |
Does not exist
|
|
| noble |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Needed
|
|
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |