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TI-2022-03848 Aliases CVE-2022-4203GHSA-w67w-mw4j-8qrv

X.509 Name Constraints Read Buffer Overflow

Priority LOW 25CWE-125Published · Updated

Key facts

Attack vector
Network
Privileges required
High
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-125 and the CVSS impact.

Summary

A read buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. Note that this occurs after certificate chain signature verification and requires either a CA to have signed the malicious certificate or for the application to continue certificate verification despite failure to construct a path to a trusted issuer. The read buffer overrun might result in a crash which could lead to a denial of service attack. In theory it could also result in the disclosure of private memory contents (such as private keys, or sensitive plaintext) although we are not aware of any working exploit leading to memory contents disclosure as of the time of release of this advisory. In a TLS client, this can be triggered by connecting to a malicious server. In a TLS server, this can be triggered if the server requests client authentication and a malicious client connects.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01386 72nd 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
No
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-w67w-mw4j-8qrv
  • 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-w67w-mw4j-8qrv

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*3.0.0 to before 3.0.8VulnerableOpenSSL
  • cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* Versions 3.0.0 to before 3.0.8 Vulnerable ·OpenSSL

Remediation

  • Fix · CNA OpenSSL (OpenSSL) Fixed in 3.0.8
  • Fix · GHSA-w67w-mw4j-8qrv 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

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-2022-4203
  2. 2026-10-03 Alias added: GHSA-w67w-mw4j-8qrv

References

Patch 1

Advisory 2

Other 3

  • 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

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