CVE-2019-18679
Published: 26 November 2019
An issue was discovered in Squid 2.x, 3.x, and 4.x through 4.8. Due to incorrect data management, it is vulnerable to information disclosure when processing HTTP Digest Authentication. Nonce tokens contain the raw byte value of a pointer that sits within heap memory allocation. This information reduces ASLR protections and may aid attackers isolating memory areas to target for remote code execution attacks.
Notes
| Author | Note |
|---|---|
| mdeslaur | same patch as CVE-2019-18678 |
Priority
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)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.9-1)
|
|
| xenial |
Does not exist
|
|
|
Patches: upstream: http://www.squid-cache.org/Versions/v4/changesets/squid-4-671ba97abe929156dc4c717ee52ad22fba0f7443.patch |
||
|
squid3 Launchpad, Ubuntu, Debian |
bionic |
Released
(3.5.27-1ubuntu1.4)
|
| disco |
Does not exist
|
|
| 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
(3.5.12-1ubuntu7.9)
|
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | None |
| Availability impact | None |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |