Bug 2164499 (CVE-2023-0217) - CVE-2023-0217 openssl: NULL dereference validating DSA public key
Summary: CVE-2023-0217 openssl: NULL dereference validating DSA public key
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2023-0217
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2164576 2164577 2166351 2167881 2167882 2167883
Blocks: 2164384
TreeView+ depends on / blocked
 
Reported: 2023-01-25 15:49 UTC by Marian Rehak
Modified: 2024-03-18 13:11 UTC (History)
55 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in OpenSSL. An invalid pointer dereference on read can be triggered when an application tries to check a malformed DSA public key by the EVP_PKEY_public_check() function, most likely leading to an application crash. This function can be called on public keys supplied from untrusted sources, which could allow an attacker to cause a denial of service.
Clone Of:
Environment:
Last Closed: 2023-03-14 18:00:35 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2023:1461 0 None None None 2023-03-27 08:50:27 UTC
Red Hat Product Errata RHSA-2023:0946 0 None None None 2023-02-28 08:18:24 UTC
Red Hat Product Errata RHSA-2023:1199 0 None None None 2023-03-14 13:53:13 UTC

Description Marian Rehak 2023-01-25 15:49:11 UTC 
An invalid pointer dereference on read can be triggered when an application tries to check a malformed DSA public key by the EVP_PKEY_public_check() function. This will most likely lead to an application crash. This function can be called on public keys supplied from untrusted sources which could allow an attacker to cause a denial of service attack.
Comment 4 Zack Miele 2023-02-07 17:52:12 UTC 
Created openssl tracking bugs for this issue:

Affects: fedora-36 [bug 2167882]
Affects: fedora-37 [bug 2167883]


Created openssl3 tracking bugs for this issue:

Affects: epel-8 [bug 2167881]
Comment 6 errata-xmlrpc 2023-02-28 08:18:19 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2023:0946 https://access.redhat.com/errata/RHSA-2023:0946
Comment 7 errata-xmlrpc 2023-03-14 13:53:09 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.0 Extended Update Support

Via RHSA-2023:1199 https://access.redhat.com/errata/RHSA-2023:1199
Comment 8 Product Security DevOps Team 2023-03-14 18:00:30 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-2023-0217
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