Security update for openssl-3 SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2023:2470-1 Final 1 1 2023-06-08T07:47:42Z current 2023-06-08T07:47:42Z 2023-06-08T07:47:42Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for openssl-3 This update for openssl-3 fixes the following issues: - Update to version 3.0.8 (bsc#1207541). - CVE-2022-40735: Fixed remote trigger of expensive server-side DHE modular-exponentiation with long exponents in Diffie-Hellman Key Agreement Protocol (bsc#1205476). - CVE-2023-1255: Fixed input buffer over-read in AES-XTS implementation on 64 bit ARM (bsc#1210714). - CVE-2023-2650: Fixed possible DoS translating ASN.1 object identifiers (bsc#1211430). The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). SUSE-2023-2470,SUSE-SLE-Module-Basesystem-15-SP4-2023-2470,openSUSE-SLE-15.4-2023-2470 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2023/suse-su-20232470-1/ Link for SUSE-SU-2023:2470-1 https://lists.suse.com/pipermail/sle-updates/2023-June/029771.html E-Mail link for SUSE-SU-2023:2470-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1205476 SUSE Bug 1205476 https://bugzilla.suse.com/1210714 SUSE Bug 1210714 https://bugzilla.suse.com/1211430 SUSE Bug 1211430 https://www.suse.com/security/cve/CVE-2022-40735/ SUSE CVE CVE-2022-40735 page https://www.suse.com/security/cve/CVE-2023-1255/ SUSE CVE CVE-2023-1255 page https://www.suse.com/security/cve/CVE-2023-2650/ SUSE CVE CVE-2023-2650 page SUSE Linux Enterprise Module for Basesystem 15 SP4 openSUSE Leap 15.4 libopenssl-3-devel-3.0.8-150400.4.26.1 libopenssl-3-devel-32bit-3.0.8-150400.4.26.1 libopenssl-3-devel-64bit-3.0.8-150400.4.26.1 libopenssl3-3.0.8-150400.4.26.1 libopenssl3-32bit-3.0.8-150400.4.26.1 libopenssl3-64bit-3.0.8-150400.4.26.1 openssl-3-3.0.8-150400.4.26.1 openssl-3-doc-3.0.8-150400.4.26.1 libopenssl-3-devel-3.0.8-150400.4.26.1 as a component of SUSE Linux Enterprise Module for Basesystem 15 SP4 libopenssl3-3.0.8-150400.4.26.1 as a component of SUSE Linux Enterprise Module for Basesystem 15 SP4 openssl-3-3.0.8-150400.4.26.1 as a component of SUSE Linux Enterprise Module for Basesystem 15 SP4 libopenssl-3-devel-3.0.8-150400.4.26.1 as a component of openSUSE Leap 15.4 libopenssl-3-devel-32bit-3.0.8-150400.4.26.1 as a component of openSUSE Leap 15.4 libopenssl3-3.0.8-150400.4.26.1 as a component of openSUSE Leap 15.4 libopenssl3-32bit-3.0.8-150400.4.26.1 as a component of openSUSE Leap 15.4 openssl-3-3.0.8-150400.4.26.1 as a component of openSUSE Leap 15.4 openssl-3-doc-3.0.8-150400.4.26.1 as a component of openSUSE Leap 15.4 The Diffie-Hellman Key Agreement Protocol allows use of long exponents that arguably make certain calculations unnecessarily expensive, because the 1996 van Oorschot and Wiener paper found that "(appropriately) short exponents" can be used when there are adequate subgroup constraints, and these short exponents can lead to less expensive calculations than for long exponents. This issue is different from CVE-2002-20001 because it is based on an observation about exponent size, rather than an observation about numbers that are not public keys. The specific situations in which calculation expense would constitute a server-side vulnerability depend on the protocol (e.g., TLS, SSH, or IKE) and the DHE implementation details. In general, there might be an availability concern because of server-side resource consumption from DHE modular-exponentiation calculations. Finally, it is possible for an attacker to exploit this vulnerability and CVE-2002-20001 together. CVE-2022-40735 SUSE Linux Enterprise Module for Basesystem 15 SP4:libopenssl-3-devel-3.0.8-150400.4.26.1 SUSE Linux Enterprise Module for Basesystem 15 SP4:libopenssl3-3.0.8-150400.4.26.1 SUSE Linux Enterprise Module for Basesystem 15 SP4:openssl-3-3.0.8-150400.4.26.1 openSUSE Leap 15.4:libopenssl-3-devel-3.0.8-150400.4.26.1 openSUSE Leap 15.4:libopenssl-3-devel-32bit-3.0.8-150400.4.26.1 openSUSE Leap 15.4:libopenssl3-3.0.8-150400.4.26.1 openSUSE Leap 15.4:libopenssl3-32bit-3.0.8-150400.4.26.1 openSUSE Leap 15.4:openssl-3-3.0.8-150400.4.26.1 openSUSE Leap 15.4:openssl-3-doc-3.0.8-150400.4.26.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2023/suse-su-20232470-1/ https://www.suse.com/security/cve/CVE-2022-40735.html CVE-2022-40735 https://bugzilla.suse.com/1205476 SUSE Bug 1205476 Issue summary: The AES-XTS cipher decryption implementation for 64 bit ARM platform contains a bug that could cause it to read past the input buffer, leading to a crash. Impact summary: Applications that use the AES-XTS algorithm on the 64 bit ARM platform can crash in rare circumstances. The AES-XTS algorithm is usually used for disk encryption. The AES-XTS cipher decryption implementation for 64 bit ARM platform will read past the end of the ciphertext buffer if the ciphertext size is 4 mod 5 in 16 byte blocks, e.g. 144 bytes or 1024 bytes. If the memory after the ciphertext buffer is unmapped, this will trigger a crash which results in a denial of service. If an attacker can control the size and location of the ciphertext buffer being decrypted by an application using AES-XTS on 64 bit ARM, the application is affected. This is fairly unlikely making this issue a Low severity one. CVE-2023-1255 SUSE Linux Enterprise Module for Basesystem 15 SP4:libopenssl-3-devel-3.0.8-150400.4.26.1 SUSE Linux Enterprise Module for Basesystem 15 SP4:libopenssl3-3.0.8-150400.4.26.1 SUSE Linux Enterprise Module for Basesystem 15 SP4:openssl-3-3.0.8-150400.4.26.1 openSUSE Leap 15.4:libopenssl-3-devel-3.0.8-150400.4.26.1 openSUSE Leap 15.4:libopenssl-3-devel-32bit-3.0.8-150400.4.26.1 openSUSE Leap 15.4:libopenssl3-3.0.8-150400.4.26.1 openSUSE Leap 15.4:libopenssl3-32bit-3.0.8-150400.4.26.1 openSUSE Leap 15.4:openssl-3-3.0.8-150400.4.26.1 openSUSE Leap 15.4:openssl-3-doc-3.0.8-150400.4.26.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2023/suse-su-20232470-1/ https://www.suse.com/security/cve/CVE-2023-1255.html CVE-2023-1255 https://bugzilla.suse.com/1210714 SUSE Bug 1210714 Issue summary: Processing some specially crafted ASN.1 object identifiers or data containing them may be very slow. Impact summary: Applications that use OBJ_obj2txt() directly, or use any of the OpenSSL subsystems OCSP, PKCS7/SMIME, CMS, CMP/CRMF or TS with no message size limit may experience notable to very long delays when processing those messages, which may lead to a Denial of Service. An OBJECT IDENTIFIER is composed of a series of numbers - sub-identifiers - most of which have no size limit. OBJ_obj2txt() may be used to translate an ASN.1 OBJECT IDENTIFIER given in DER encoding form (using the OpenSSL type ASN1_OBJECT) to its canonical numeric text form, which are the sub-identifiers of the OBJECT IDENTIFIER in decimal form, separated by periods. When one of the sub-identifiers in the OBJECT IDENTIFIER is very large (these are sizes that are seen as absurdly large, taking up tens or hundreds of KiBs), the translation to a decimal number in text may take a very long time. The time complexity is O(n^2) with 'n' being the size of the sub-identifiers in bytes (*). With OpenSSL 3.0, support to fetch cryptographic algorithms using names / identifiers in string form was introduced. This includes using OBJECT IDENTIFIERs in canonical numeric text form as identifiers for fetching algorithms. Such OBJECT IDENTIFIERs may be received through the ASN.1 structure AlgorithmIdentifier, which is commonly used in multiple protocols to specify what cryptographic algorithm should be used to sign or verify, encrypt or decrypt, or digest passed data. Applications that call OBJ_obj2txt() directly with untrusted data are affected, with any version of OpenSSL. If the use is for the mere purpose of display, the severity is considered low. In OpenSSL 3.0 and newer, this affects the subsystems OCSP, PKCS7/SMIME, CMS, CMP/CRMF or TS. It also impacts anything that processes X.509 certificates, including simple things like verifying its signature. The impact on TLS is relatively low, because all versions of OpenSSL have a 100KiB limit on the peer's certificate chain. Additionally, this only impacts clients, or servers that have explicitly enabled client authentication. In OpenSSL 1.1.1 and 1.0.2, this only affects displaying diverse objects, such as X.509 certificates. This is assumed to not happen in such a way that it would cause a Denial of Service, so these versions are considered not affected by this issue in such a way that it would be cause for concern, and the severity is therefore considered low. CVE-2023-2650 SUSE Linux Enterprise Module for Basesystem 15 SP4:libopenssl-3-devel-3.0.8-150400.4.26.1 SUSE Linux Enterprise Module for Basesystem 15 SP4:libopenssl3-3.0.8-150400.4.26.1 SUSE Linux Enterprise Module for Basesystem 15 SP4:openssl-3-3.0.8-150400.4.26.1 openSUSE Leap 15.4:libopenssl-3-devel-3.0.8-150400.4.26.1 openSUSE Leap 15.4:libopenssl-3-devel-32bit-3.0.8-150400.4.26.1 openSUSE Leap 15.4:libopenssl3-3.0.8-150400.4.26.1 openSUSE Leap 15.4:libopenssl3-32bit-3.0.8-150400.4.26.1 openSUSE Leap 15.4:openssl-3-3.0.8-150400.4.26.1 openSUSE Leap 15.4:openssl-3-doc-3.0.8-150400.4.26.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2023/suse-su-20232470-1/ https://www.suse.com/security/cve/CVE-2023-2650.html CVE-2023-2650 https://bugzilla.suse.com/1211430 SUSE Bug 1211430