CVE-2023-0217: NULL dereference validating DSA public key
First published: Wed Jan 25 2023(Updated: )
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.
Credit: openssl-security@openssl.org openssl-security@openssl.org openssl-security@openssl.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/openssl | <1:3.0.1-47.el9_1 | 1:3.0.1-47.el9_1 |
| redhat/openssl | <1:3.0.1-46.el9_0 | 1:3.0.1-46.el9_0 |
| OpenSSL OpenSSL | >=3.0.0<=3.0.7 | |
| ubuntu/openssl | <3.0.8-1ubuntu1 | 3.0.8-1ubuntu1 |
| ubuntu/openssl | <3.0.8 | 3.0.8 |
| ubuntu/openssl | <3.0.2-0ubuntu1.8 | 3.0.2-0ubuntu1.8 |
| ubuntu/openssl | <3.0.5-2ubuntu2.1 | 3.0.5-2ubuntu2.1 |
| ubuntu/openssl | <3.0.8-1ubuntu1 | 3.0.8-1ubuntu1 |
| debian/openssl | 1.1.1n-0+deb10u3 1.1.1n-0+deb10u6 1.1.1w-0+deb11u1 1.1.1n-0+deb11u5 3.0.11-1~deb12u2 3.1.4-2 3.1.5-1 | |
| rust/openssl-src | >=300.0.0<300.0.12 | 300.0.12 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://www.cve.org/CVERecord?id=CVE-2023-0217 https://nvd.nist.gov/vuln/detail/CVE-2023-0217
- https://bugzilla.redhat.com/show_bug.cgi?id=2164499
- https://access.redhat.com/errata/RHSA-2023:0946
- https://access.redhat.com/errata/RHSA-2023:1199
- https://access.redhat.com/security/cve/cve-2023-0217
- https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=23985bac83fd50c8e29431009302b5442f985096
- https://www.openssl.org/news/secadv/20230207.txt
- https://launchpad.net/bugs/cve/CVE-2023-0217
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2167882
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2167883
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2167881
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-0217
- https://ubuntu.com/security/notices/USN-5844-1
- https://nvd.nist.gov/vuln/detail/CVE-2023-0217
- https://security-tracker.debian.org/tracker/CVE-2023-0217
- https://ubuntu.com/security/CVE-2023-0217
- https://security.gentoo.org/glsa/202402-08
- https://git.openssl.org/gitweb/?p=openssl.git;a=commit;h=23985bac83fd50c8e29431009302b5442f985096
- https://rustsec.org/advisories/RUSTSEC-2023-0012.html
- https://github.com/advisories/GHSA-vxrh-cpg7-8vjr (Advisory)
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2023-0217.
What is the severity of CVE-2023-0217?
The severity of CVE-2023-0217 is high with a severity value of 7.5.
What is the affected software for CVE-2023-0217?
The affected software for CVE-2023-0217 is OpenSSL version 1:3.0.1-47.el9_1 and OpenSSL version 1:3.0.1-46.el9_0.
How can CVE-2023-0217 be exploited?
CVE-2023-0217 can be exploited by an application trying to check a malformed DSA public key by the EVP_PKEY_public_check() function, which may lead to an application crash.
Is there a fix available for CVE-2023-0217?
Yes, the fix for CVE-2023-0217 is available in OpenSSL version 1:3.0.1-47.el9_1 and OpenSSL version 1:3.0.1-46.el9_0.
- collector/redhat-cve
- collector/nvd-index
- agent/type
- agent/first-publish-date
- collector/launchpad-cve
- source/Launchpad
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2023-0217
- agent/severity
- agent/weakness
- collector/usn-cve
- source/Ubuntu
- agent/software-canonical-lookup
- collector/mitre-cve
- source/MITRE
- agent/title
- collector/nvd-api
- source/NVD
- agent/author
- collector/security-tracker-debian
- source/Debian
- collector/nvd-cve
- collector/github-advisory-latest
- source/GitHub
- alias/GHSA-vxrh-cpg7-8vjr
- agent/last-modified-date
- agent/references
- agent/softwarecombine
- agent/tags
- agent/description
- agent/event
- collector/github-advisory
- package-manager/redhat
- vendor/openssl
- canonical/openssl openssl
- version/openssl openssl/3.0.0
- version/openssl openssl/3.0.7
- package-manager/ubuntu
- package-manager/debian
- package-manager/rust