CVE-2019-12523
Published: 26 November 2019
An issue was discovered in Squid before 4.9. When handling a URN request, a corresponding HTTP request is made. This HTTP request doesn't go through the access checks that incoming HTTP requests go through. This causes all access checks to be bypassed and allows access to restricted HTTP servers, e.g., an attacker can connect to HTTP servers that only listen on localhost.
Notes
| Author | Note |
|---|---|
| mdeslaur | This was fixed in 4.x by rewriting the URI parser to use SBuf. fixed in Debian's 3.5.23-5+deb9u2 |
Priority
CVSS 3 base score: 9.1
Status
| Package | Release | Status |
|---|---|---|
|
squid Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| disco |
Released
(4.4-1ubuntu2.3)
|
|
| eoan |
Released
(4.8-1ubuntu2.1)
|
|
| focal |
Released
(4.9-2ubuntu1)
|
|
| groovy |
Released
(4.9-2ubuntu1)
|
|
| hirsute |
Released
(4.9-2ubuntu1)
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.9-1)
|
|
| xenial |
Does not exist
|
|
|
Patches: upstream: http://www.squid-cache.org/Versions/v4/changesets/squid-4-fbbdf75efd7a5cc244b4886a9d42ea458c5a3a73.patch |
||
|
squid3 Launchpad, Ubuntu, Debian |
bionic |
Released
(3.5.27-1ubuntu1.7)
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| precise |
Ignored
(end of ESM support, was needs-triage)
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Released
(3.5.12-1ubuntu7.12)
|
|