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TI-2023-00210 Aliases CVE-2023-0217GHSA-vxrh-cpg7-8vjr

NULL dereference validating DSA public key

Priority MEDIUM 43CWE-476Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-476.

Summary

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. The TLS implementation in OpenSSL does not call this function but applications might call the function if there are additional security requirements imposed by standards such as FIPS 140-3.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01846 79th percentileScored 2026-11-07
Fix Fixed OpenSSL (OpenSSL): 3.0.8openssl-src (crates.io): 300.0.12Red Hat: 2 advisories

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
OpenSSLOpenSSL3.0.0 to before 3.0.83.0.8Patch availableCNA
—openssl-src (crates.io)300.0.0 to before 300.0.12300.0.12Patch availableGHSA-vxrh-cpg7-8vjr
  • OpenSSL VendorOpenSSL Affected 3.0.0 to before 3.0.8 Fixed in 3.0.8 Patch available CNA
  • openssl-src (crates.io) Vendor— Affected 300.0.0 to before 300.0.12 Fixed in 300.0.12 Patch available GHSA-vxrh-cpg7-8vjr

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*3.0.0 – 3.0.7VulnerableOpenSSL
  • cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* Versions 3.0.0 – 3.0.7 Vulnerable ·OpenSSL

Remediation

  • Fix · CNA OpenSSL (OpenSSL) Fixed in 3.0.8
  • Fix · GHSA-vxrh-cpg7-8vjr openssl-src (crates.io) Fixed in 300.0.12 Advisory →

Red Hat 2 advisories

  • RHSA-2023:1199 Released 2023-03-14 · Red Hat rating Important
    openssl security and bug fix update
    • Red Hat Enterprise Linux AppStream EUS (v.9.0) openssl-devel-1:3.0.1-46.el9_0, openssl-perl-1:3.0.1-46.el9_0
    • Red Hat Enterprise Linux BaseOS EUS (v.9.0) openssl-1:3.0.1-46.el9_0, openssl-libs-1:3.0.1-46.el9_0
  • RHSA-2023:0946 Released 2023-02-28 · Red Hat rating Important
    openssl security and bug fix update
    • Red Hat Enterprise Linux AppStream (v. 9) openssl-devel-1:3.0.1-47.el9_1, openssl-perl-1:3.0.1-47.el9_1
    • Red Hat Enterprise Linux BaseOS (v. 9) openssl-1:3.0.1-47.el9_1, openssl-libs-1:3.0.1-47.el9_1

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    OpenSSL — openssl.org/news/secadv/20230207.txt

    7 records Highest priority Priority HIGH 1 HIGH, 6 MEDIUM

    Other records, highest priority first

    • TI-2023-00271 X.400 address type confusion in X.509 GeneralNamePriority HIGH 70
    • TI-2022-04067 Double free after calling PEM_read_bio_exPriority MEDIUM 62
    • TI-2023-00208 Use-after-free following BIO_new_NDEFPriority MEDIUM 47
    Show all 7 records → Advisory →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2023:0946
Red Hat Enterprise Linux AppStream EUS (v.9.0)Fixed RHSA-2023:1199
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2023:0946
Red Hat Enterprise Linux BaseOS EUS (v.9.0)Fixed RHSA-2023:1199
Not affected: 7 products
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9
  • Red Hat JBoss Core Services
  • Red Hat JBoss Web Server 3
  • Red Hat JBoss Web Server 5

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-0217
  2. 2026-10-03 Alias added: GHSA-vxrh-cpg7-8vjr

References

Patch 1

Advisory 2

Other 2

  • TI-2022-01915 The c_rehash script allows command injection CVSS 3.1CRITICAL 9.8
  • TI-2021-02645 SM2 Decryption Buffer Overflow CVSS 3.1CRITICAL 9.8
  • TI-2009-03392 The TLS protocol, and the SSL protocol 3.0 and possibly earlier, as used in Microsoft… CVSS 3.1CRITICAL 9.8
  • TI-2022-01176 The c_rehash script allows command injection CVSS 3.1CRITICAL 9.8
  • TI-2014-00154 The (1) TLS and (2) DTLS implementations in OpenSSL 1.0.1 before 1.0.1g do not properly… KEVCVSS 3.1HIGH 7.5
  • TI-2025-14107 Stack buffer overflow in CMS (Auth)EnvelopedData parsing CVSS 3.1HIGH 8.8
See all 312 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences