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Test ID:1.3.6.1.4.1.25623.1.0.150799
Category:Denial of Service
Title:OpenSSL DoS Vulnerability (20230731) - Linux
Summary:OpenSSL is prone to a denial of service (DoS) vulnerability.
Description:Summary:
OpenSSL is prone to a denial of service (DoS) vulnerability.

Vulnerability Insight:
Checking excessively long DH keys or parameters may be very slow.

Vulnerability Impact:
Applications that use the functions DH_check(), DH_check_ex() or
EVP_PKEY_param_check() to check a DH key or DH parameters may experience long delays. Where the
key or parameters that are being checked have been obtained from an untrusted source this may
lead to a Denial of Service.

Affected Software/OS:
OpenSSL version 1.0.2, 1.1.1, 3.0 and 3.1.

Solution:
Update to version 1.0.2zi, 1.1.1v, 3.0.10, 3.1.2 or later.

CVSS Score:
5.0

CVSS Vector:
AV:N/AC:L/Au:N/C:N/I:N/A:P

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2023-3817
http://seclists.org/fulldisclosure/2023/Jul/43
https://security.gentoo.org/glsa/202402-08
1.0.2zi patch (premium)
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=869ad69aadd985c7b8ca6f4e5dd0eb274c9f3644
1.1.1v git commit
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=91ddeba0f2269b017dc06c46c993a788974b1aa5
3.0.10 git commit
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=9002fd07327a91f35ba6c1307e71fa6fd4409b7f
3.1.2 git commit
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=6a1eb62c29db6cb5eec707f9338aee00f44e26f5
OpenSSL Advisory
https://www.openssl.org/news/secadv/20230731.txt
https://lists.debian.org/debian-lts-announce/2023/08/msg00019.html
http://www.openwall.com/lists/oss-security/2023/07/31/1
http://www.openwall.com/lists/oss-security/2023/09/22/11
http://www.openwall.com/lists/oss-security/2023/09/22/9
http://www.openwall.com/lists/oss-security/2023/11/06/2
CopyrightCopyright (C) 2023 Greenbone AG

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