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CVE-2022-4203

Status Candidate

Overview

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.

Related Files

Gentoo Linux Security Advisory 202402-08
Posted Feb 5, 2024
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202402-8 - Multiple vulnerabilities have been found in OpenSSL, the worst of which could result in denial of service. Versions greater than or equal to 3.0.10 are affected.

tags | advisory, denial of service, vulnerability
systems | linux, gentoo
advisories | CVE-2022-3358, CVE-2022-4203, CVE-2022-4304, CVE-2022-4450, CVE-2023-0215, CVE-2023-0216, CVE-2023-0217, CVE-2023-0286, CVE-2023-0401, CVE-2023-0464, CVE-2023-0465, CVE-2023-0466, CVE-2023-2650, CVE-2023-2975
SHA-256 | 21ad378435b07083191f0c5fc69298cd031080be76d8665f35aae2aacebb11f1
Red Hat Security Advisory 2023-1199-01
Posted Mar 15, 2023
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2023-1199-01 - OpenSSL is a toolkit that implements the Secure Sockets Layer and Transport Layer Security protocols, as well as a full-strength general-purpose cryptography library. Issues addressed include buffer overflow, double free, and use-after-free vulnerabilities.

tags | advisory, overflow, vulnerability, protocol
systems | linux, redhat
advisories | CVE-2022-4203, CVE-2022-4304, CVE-2022-4450, CVE-2023-0215, CVE-2023-0216, CVE-2023-0217, CVE-2023-0286, CVE-2023-0401
SHA-256 | 4e40b595047797d81adf804c2f45bc97a61c115d639ef1d1e21d8aa98767fd4b
Red Hat Security Advisory 2023-0946-01
Posted Feb 28, 2023
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2023-0946-01 - OpenSSL is a toolkit that implements the Secure Sockets Layer and Transport Layer Security protocols, as well as a full-strength general-purpose cryptography library. Issues addressed include buffer overflow, double free, and use-after-free vulnerabilities.

tags | advisory, overflow, vulnerability, protocol
systems | linux, redhat
advisories | CVE-2022-4203, CVE-2022-4304, CVE-2022-4450, CVE-2023-0215, CVE-2023-0216, CVE-2023-0217, CVE-2023-0286, CVE-2023-0401
SHA-256 | 03c201bb2ce7568e3362720c1cb0f457937348867d13e7c04e8449c3b355f24f
OpenSSL Toolkit 3.0.8
Posted Feb 8, 2023
Site openssl.org

OpenSSL is a robust, fully featured Open Source toolkit implementing the Secure Sockets Layer and Transport Layer Security protocols with full-strength cryptography world-wide. The 3.x series is the current major version of OpenSSL.

Changes: Fixed NULL dereference during PKCS7 data verification. Fixed X.400 address type confusion in X.509 GeneralName. Fixed NULL dereference validating DSA public key. Fixed invalid pointer dereference in d2i_PKCS7 functions. Fixed use-after-free following BIO_new_NDEF. Fixed double-free after calling PEM_read_bio_ex. Fixed timing oracle in RSA decryption. Fixed X.509 Name Constraints read buffer overflow. Fixed X.509 policy constraints double locking.
tags | tool, encryption, protocol
systems | unix
advisories | CVE-2022-3996, CVE-2022-4203, CVE-2022-4304, CVE-2022-4450, CVE-2023-0215, CVE-2023-0216, CVE-2023-0217, CVE-2023-0286, CVE-2023-0401
SHA-256 | 6c13d2bf38fdf31eac3ce2a347073673f5d63263398f1f69d0df4a41253e4b3e
Ubuntu Security Notice USN-5844-1
Posted Feb 8, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5844-1 - David Benjamin discovered that OpenSSL incorrectly handled X.400 address processing. A remote attacker could possibly use this issue to read arbitrary memory contents or cause OpenSSL to crash, resulting in a denial of service. Corey Bonnell discovered that OpenSSL incorrectly handled X.509 certificate verification. A remote attacker could possibly use this issue to cause OpenSSL to crash, resulting in a denial of service. This issue only affected Ubuntu 22.04 LTS and Ubuntu 22.10.

tags | advisory, remote, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2022-4203, CVE-2022-4304, CVE-2022-4450, CVE-2023-0215, CVE-2023-0216, CVE-2023-0217, CVE-2023-0286, CVE-2023-0401
SHA-256 | 9148a451ed73788ce14d48db0869c0d82f74b5a31944d3cbb731fc7a3633c392
OpenSSL Security Advisory 20230207
Posted Feb 7, 2023
Site openssl.org

OpenSSL Security Advisory 20230207 - Security issues addressed in OpenSSL include X.400 address type confusion in X.509 GeneralName, a timing oracle in RSA decryption, a X.509 Name Constraints read buffer overflow, a use-after-free following BIO_new_NDEF, a double-free after calling PEM_read_bio_ex, an invalid pointer dereference in d2i_PKCS7 functions, a NULL dereference validating DSA public key, and a NULL dereference during PKCS7 data verification.

tags | advisory, overflow
advisories | CVE-2022-4203, CVE-2022-4304, CVE-2022-4450, CVE-2023-0215, CVE-2023-0216, CVE-2023-0217, CVE-2023-0286, CVE-2023-0401
SHA-256 | 16370d8b2cce80bd47b575da9533d376c1ce8d49fd8cfdffe9f131d46a43f157
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