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CVE-2021-44758

Status Candidate

Overview

Heimdal before 7.7.1 allows attackers to cause a NULL pointer dereference in a SPNEGO acceptor via a preferred_mech_type of GSS_C_NO_OID and a nonzero initial_response value to send_accept.

Related Files

Gentoo Linux Security Advisory 202310-06
Posted Oct 9, 2023
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202310-6 - Multiple vulnerabilities have been discovered in Heimdal, the worst of which could lead to remote code execution on a KDC. Versions greater than or equal to 7.8.0-r1 are affected.

tags | advisory, remote, vulnerability, code execution
systems | linux, gentoo
advisories | CVE-2019-14870, CVE-2021-44758, CVE-2022-3437, CVE-2022-3671, CVE-2022-41916, CVE-2022-42898, CVE-2022-44640, CVE-2022-44758, CVE-2022-45142
SHA-256 | 27611271da9764cfeb6bf4345cc8b0a457073005b818ba42fe2a3f1b4b278d83
Ubuntu Security Notice USN-5800-1
Posted Jan 13, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5800-1 - It was discovered that Heimdal incorrectly handled certain SPNEGO tokens. A remote attacker could possibly use this issue to cause a denial of service. Evgeny Legerov discovered that Heimdal incorrectly handled memory when performing certain DES decryption operations. A remote attacker could use this issue to cause a denial of service, or possibly execute arbitrary code.

tags | advisory, remote, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2021-44758, CVE-2022-3437, CVE-2022-42898, CVE-2022-44640
SHA-256 | b0e2703f42318fc7c0a4e60c767ce87190f7c37446b669112673f0af14942855
Debian Security Advisory 5287-1
Posted Nov 23, 2022
Authored by Debian | Site debian.org

Debian Linux Security Advisory 5287-1 - Several vulnerabilities were discovered in Heimdal, an implementation of Kerberos 5 that aims to be compatible with MIT Kerberos.

tags | advisory, vulnerability
systems | linux, debian
advisories | CVE-2021-3671, CVE-2021-44758, CVE-2022-3437, CVE-2022-41916, CVE-2022-42898, CVE-2022-44640
SHA-256 | 84acf94eecacae5883c23a1272096230f0b336c4708449aaa72442ec79969d0e
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