Bug 2153239 (CVE-2022-3996)

Summary:	CVE-2022-3996 openssl: double locking leads to denial of service
Product:	[Other] Security Response	Reporter:	Sandipan Roy <saroy>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	berrange, bootloader-eng-team, chorn, cllang, csutherl, dbelyavs, ddepaula, jclere, jferlan, jwon, kraxel, mmadzin, mturk, pbonzini, peholase, pjindal, plodge, rh-spice-bugs, szappis, virt-maint
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 vulnerability was found in OpenSSL. This security flaw occurs if an X.509 certificate contains a malformed policy constraint and policy processing is enabled, then a write lock will be taken twice recursively. On some operating systems (most widely: Windows), this issue results in a denial of service when the affected process hangs. Policy processing enabled on a publicly-facing server is not considered a standard setup. Policy processing is enabled by passing the `-policy' argument to the command line utilities or by calling either the` X509_VERIFY_PARAM_add0_policy()' or `X509_VERIFY_PARAM_set1_policies()' functions.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2022-12-15 16:48:33 UTC	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:
Bug Blocks:	2153028

Description Sandipan Roy 2022-12-14 10:45:55 UTC

If an X.509 certificate contains a malformed policy constraint and policy processing is enabled, then a write lock will be taken twice recursively. On some operating systems (most widely: Windows) this results in a denial of service when the affected process hangs. Policy processing being enabled on a publicly facing server is not considered to be a common setup. Policy processing is enabled by passing the `-policy' argument to the command line utilities or by calling either `X509_VERIFY_PARAM_add0_policy()' or `X509_VERIFY_PARAM_set1_policies()' functions.

https://github.com/openssl/openssl/commit/7725e7bfe6f2ce8146b6552b44e0d226be7638e7
https://www.openssl.org/news/secadv/20221213.txt

Comment 1 Product Security DevOps Team 2022-12-15 16:48:31 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2022-3996