Bug 2301888 (CVE-2024-7264)

Summary:	CVE-2024-7264 curl: libcurl: ASN.1 date parser overread
Product:	[Other] Security Response	Reporter:	Patrick Del Bello <pdelbell>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	achadha, adudiak, antal.nemes, asdas, bdettelb, bmontgom, crizzo, csutherl, dfreiber, doconnor, dpaolell, drow, eparis, gcovolo, jahealy, jburrell, jclere, jdelft, jgamba, jmitchel, jtanner, jupierce, kshier, lgarciaa, mbiarnes, npecka, nstielau, omaciel, pjindal, plodge, security-response-team, sidsharm, sponnaga, stcannon, szappis, talessio, teagle, vchlup, vkumar, vlaad, vrajput, ximhan, yguenane, yuxzhu
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in libcurl, where libcurl's ASN1 parser code has the `GTime2str()` function, used for parsing an ASN.1 Generalized Time field. If a syntactically incorrect field is given, the parser can use -1 for the length of the time fraction, leading to a `strlen()` performed on a pointer to a heap buffer area that is not purposely NULL terminated.	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:	2309414, 2309415, 2319437
Bug Blocks:

Description Patrick Del Bello 2024-07-31 04:36:11 UTC

libcurl's ASN1 parser code has the `GTime2str()` function, used for parsing an ASN.1 Generalized Time field. If given an syntactically incorrect field, the parser might end up using -1 for the length of the *time fraction*, leading to a `strlen()` getting performed on a pointer to a heap buffer area that is not (purposely) null terminated.

This flaw most likely leads to a crash, but can also lead to heap contents getting returned to the application when
CURLINFO_CERTINFO (https://curl.se/libcurl/c/CURLINFO_CERTINFO.html) is used.

Comment 1 errata-xmlrpc 2024-10-07 09:24:51 UTC

This issue has been addressed in the following products:

  Red Hat OpenShift Service Mesh 2.6 for RHEL 8
  Red Hat OpenShift Service Mesh 2.6 for RHEL 9

Via RHSA-2024:7726 https://access.redhat.com/errata/RHSA-2024:7726

Comment 4 errata-xmlrpc 2025-02-19 10:27:00 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2025:1671 https://access.redhat.com/errata/RHSA-2025:1671

Comment 5 errata-xmlrpc 2025-02-19 11:04:22 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2025:1673 https://access.redhat.com/errata/RHSA-2025:1673

Comment 7 antal.nemes 2025-03-27 14:01:25 UTC

For RedHat Enterprise Linux 8, RHSA-2025:1673 shows only mysql-related packages as updated, but CVE-2024-7264 is a vulnerability in libcurl, so I would expect libcurl and curl to be among the updated packages in this RHSA.

I checked the latest sources in RHEL8 and I do not see libcurl being updated with the upstream patch. Will there be an update for libcurl published for CVE-2024-7264 that includes this fix?