CVE-2020-8517
Published: 4 February 2020
An issue was discovered in Squid before 4.10. Due to incorrect input validation, the NTLM authentication credentials parser in ext_lm_group_acl may write to memory outside the credentials buffer. On systems with memory access protections, this can result in the helper process being terminated unexpectedly. This leads to the Squid process also terminating and a denial of service for all clients using the proxy.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
squid Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| eoan |
Released
(4.8-1ubuntu2.2)
|
|
| focal |
Released
(4.9-2ubuntu4)
|
|
| groovy |
Released
(4.9-2ubuntu4)
|
|
| hirsute |
Released
(4.9-2ubuntu4)
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
|
Patches: upstream: http://www.squid-cache.org/Versions/v4/changesets/squid-4-6982f1187a26557e582172965e266f544ea562a5.patch |
||
|
squid3 Launchpad, Ubuntu, Debian |
bionic |
Released
(3.5.27-1ubuntu1.5)
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Released
(3.5.12-1ubuntu7.10)
|
|
|
Patches: upstream: http://www.squid-cache.org/Versions/v3/3.5/changesets/squid-3.5-c62d2b43ad4962ea44aa0c5edb4cc99cb83a413d.patch |
||
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 |