CVE-2020-11993
Published: 7 August 2020
Apache HTTP Server versions 2.4.20 to 2.4.43 When trace/debug was enabled for the HTTP/2 module and on certain traffic edge patterns, logging statements were made on the wrong connection, causing concurrent use of memory pools. Configuring the LogLevel of mod_http2 above "info" will mitigate this vulnerability for unpatched servers.
Priority
Status
Package | Release | Status |
---|---|---|
apache2
Launchpad, Ubuntu, Debian |
bionic |
Released
(2.4.29-1ubuntu4.14)
|
focal |
Released
(2.4.41-4ubuntu3.1)
|
|
trusty |
Not vulnerable
(code not present)
|
|
upstream |
Released
(2.4.44)
|
|
xenial |
Not vulnerable
(code not present)
|
|
Patches:
upstream: https://svn.apache.org/r1879642 upstream: https://github.com/apache/httpd/commit/63a0a87efa0925514d15c211b508f6594669888c |
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 |