Bug 2268766 (CVE-2024-28757) - CVE-2024-28757 expat: XML Entity Expansion
Summary: CVE-2024-28757 expat: XML Entity Expansion
Keywords:
Status: NEW
Alias: CVE-2024-28757
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: 2268767 2268768
Blocks: 2268769
TreeView+ depends on / blocked
 
Reported: 2024-03-10 09:45 UTC by ybuenos
Modified: 2024-07-22 15:11 UTC (History)
0 users

Fixed In Version: expat 2.6.2
Doc Type: ---
Doc Text:
An XML Entity Expansion flaw was found in libexpat. This flaw allows an attacker to cause a denial of service when there is an isolated use of external parsers.
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2024:3941 0 None None None 2024-06-17 02:20:32 UTC
Red Hat Product Errata RHBA-2024:4068 0 None None None 2024-06-24 14:03:06 UTC
Red Hat Product Errata RHBA-2024:4637 0 None None None 2024-07-18 15:21:05 UTC
Red Hat Product Errata RHBA-2024:4712 0 None None None 2024-07-22 15:11:52 UTC
Red Hat Product Errata RHSA-2024:1530 0 None None None 2024-03-26 16:42:22 UTC
Red Hat Product Errata RHSA-2024:3926 0 None None None 2024-06-13 14:34:08 UTC

Description ybuenos 2024-03-10 09:45:10 UTC 
libexpat through 2.6.1 allows an XML Entity Expansion attack when there is isolated use of external parsers (created via XML_ExternalEntityParserCreate).

https://github.com/libexpat/libexpat/issues/839
https://github.com/libexpat/libexpat/pull/842
Comment 1 ybuenos 2024-03-10 09:45:41 UTC 
Created expat tracking bugs for this issue:

Affects: fedora-all [bug 2268767]
Comment 2 ybuenos 2024-03-10 09:46:40 UTC 
Created mingw-expat tracking bugs for this issue:

Affects: fedora-all [bug 2268768]
Comment 8 errata-xmlrpc 2024-03-26 16:42:21 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2024:1530 https://access.redhat.com/errata/RHSA-2024:1530
Comment 11 errata-xmlrpc 2024-06-13 14:34:07 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Extended Update Support

Via RHSA-2024:3926 https://access.redhat.com/errata/RHSA-2024:3926
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