CVE-2019-12519
Published: 15 April 2020
An issue was discovered in Squid through 4.7. When handling the tag esi:when when ESI is enabled, Squid calls ESIExpression::Evaluate. This function uses a fixed stack buffer to hold the expression while it's being evaluated. When processing the expression, it could either evaluate the top of the stack, or add a new member to the stack. When adding a new member, there is no check to ensure that the stack won't overflow.
Priority
Medium
CVSS 3 base score: 9.8
Status
| Package | Release | Status |
|---|---|---|
|
squid Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.11)
|
| Ubuntu 20.10 (Groovy Gorilla) |
Released
(4.10-1ubuntu2)
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Released
(4.10-1ubuntu1.1)
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
Patches: Upstream: http://www.squid-cache.org/Versions/v4/changesets/squid-4-fdd4123629320aa1ee4c3481bb392437c90d188d.patch |
||
|
squid3 Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 20.10 (Groovy Gorilla) |
Does not exist
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(3.5.27-1ubuntu1.6)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Released
(3.5.12-1ubuntu7.11)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|