Bug 2269627 (CVE-2024-31309)

Summary:	CVE-2024-31309 trafficserver: CONTINUATION frames DoS
Product:	[Other] Security Response	Reporter:	Nick Tait <ntait>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	security-response-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	trafficserver 8.1.10, trafficserver 9.2.4	Doc Type:	If docs needed, set a value
Doc Text:	A vulnerability was found in how Apache Traffic Server implements the HTTP/2 protocol. There are insufficient limitations placed on the amount of CONTINUATION frames that can be sent within a single stream. This issue could allow an unauthenticated remote attacker to send packets to vulnerable servers, which could use up compute or memory resources to cause a Denial of Service.	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2273041, 2273042
Bug Blocks:	2268258

Description Nick Tait 2024-03-14 22:56:08 UTC

The Apache Traffic Server's implementation of HTTP/2 will collect CONTINUATION frames in an unbounded buffer and will not check a limit until it has received the set END_HEADERS flag, resulting in an OOM crash.

Comment 8 Nick Tait 2024-04-03 19:17:42 UTC

Created trafficserver tracking bugs for this issue:

Affects: epel-all [bug 2273042]
Affects: fedora-all [bug 2273041]