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.
NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.
|Base Score:||7.5||Base Metrics:||AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H|
|Access Vector:||Network||Attack Complexity:||Low|
|Privileges Required:||None||User Interaction:||None|
|Integrity Impact:||None||Availability Impact:||High|
|Oracle Linux version 8 (httpd)||ELSA-2021-1809||2021-05-25|
|Oracle Linux version 8 (mod_http2)||ELSA-2021-1809||2021-05-25|
|Oracle Linux version 8 (mod_md)||ELSA-2021-1809||2021-05-25|
This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team