Bug 2243877 (CVE-2023-45802) - CVE-2023-45802 mod_http2: reset requests exhaust memory (incomplete fix of CVE-2023-44487)
Summary: CVE-2023-45802 mod_http2: reset requests exhaust memory (incomplete fix of CV...
Keywords:
Status: NEW
Alias: CVE-2023-45802
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2244581 2245070 2245071
Blocks: 2243873
TreeView+ depends on / blocked
 
Reported: 2023-10-13 17:09 UTC by Chess Hazlett
Modified: 2024-05-22 09:46 UTC (History)
35 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2023:7625 0 None None None 2023-12-07 13:49:36 UTC
Red Hat Product Errata RHSA-2023:7626 0 None None None 2023-12-07 13:55:23 UTC
Red Hat Product Errata RHSA-2024:2368 0 None None None 2024-04-30 10:05:53 UTC
Red Hat Product Errata RHSA-2024:2891 0 None None None 2024-05-16 18:16:39 UTC
Red Hat Product Errata RHSA-2024:3121 0 None None None 2024-05-22 09:46:51 UTC

Description Chess Hazlett 2023-10-13 17:09:27 UTC 
The initial Rapid-Reset fix for mod_http2 was not sufficient to mitigate reset attacks completely; there is still a potential resource leak. If reset requests are sent on a connection below the rate limit imposed by nghttp2, memory is still consumed per RST and persists until the connection is broken. This "slow drip" of <1000 RST per second is sufficient to disable a single connection.
Comment 4 Sandipan Roy 2023-10-19 14:44:50 UTC 
Created httpd tracking bugs for this issue:

Affects: fedora-all [bug 2245071]


Created mod_http2 tracking bugs for this issue:

Affects: fedora-all [bug 2245070]
Comment 5 Sandipan Roy 2023-10-19 14:59:00 UTC 
During "normal" HTTP/2 use, the probability to hit this bug is very low. The kept memory would not become noticeable before the connection closes or times out.
Comment 6 errata-xmlrpc 2023-12-07 13:49:34 UTC 
This issue has been addressed in the following products:

  JBoss Core Services on RHEL 7
  JBoss Core Services for RHEL 8

Via RHSA-2023:7625 https://access.redhat.com/errata/RHSA-2023:7625
Comment 7 errata-xmlrpc 2023-12-07 13:55:20 UTC 
This issue has been addressed in the following products:

  Red Hat JBoss Core Services

Via RHSA-2023:7626 https://access.redhat.com/errata/RHSA-2023:7626
Comment 9 errata-xmlrpc 2024-04-30 10:05:51 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2024:2368 https://access.redhat.com/errata/RHSA-2024:2368
Comment 10 errata-xmlrpc 2024-05-16 18:16:35 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.8 Extended Update Support

Via RHSA-2024:2891 https://access.redhat.com/errata/RHSA-2024:2891
Comment 11 errata-xmlrpc 2024-05-22 09:46:48 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2024:3121 https://access.redhat.com/errata/RHSA-2024:3121
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