CVE-2021-28662
Published: 27 May 2021
An issue was discovered in Squid 4.x before 4.15 and 5.x before 5.0.6. If a remote server sends a certain response header over HTTP or HTTPS, there is a denial of service. This header can plausibly occur in benign network traffic.
Notes
| Author | Note |
|---|---|
| mdeslaur | per upstream, all Squid older than 4.0 are not vulnerable. |
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)
|
|
| 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-b1c37c9e7b30d0efb5e5ccf8200f2a646b9c36f8.patch upstream: http://www.squid-cache.org/Versions/v6/changesets/squid-6-051824924c709bd6162a378f746fb859454c674e.patch upstream: https://github.com/squid-cache/squid/commit/051824924c709bd6162a378f746fb859454c674e upstream: https://github.com/squid-cache/squid/commit/b1c37c9e7b30d0efb5e5ccf8200f2a646b9c36f8 |
||
|
squid3 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Not vulnerable
|
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 6.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |