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OVAL Definitions
>
OVAL Definition Details
Id
oval:ru.altx-soft.nix:def:249430
[Eng]
Version
1
Class
patch
ALTXid
479568
Language
Russian
Severity
Medium
Title
Обновление ELSA-2024-0888 : устранение уязвимостей в edk2
Description
[20220126gitbb1bba3d77-6.el8_9.3]
- edk2-Bumped-openssl-submodule-version-to-cf317b2bb227.patch [RHEL-7560]
- Resolves: RHEL-7560
(CVE-2023-3446 edk2: openssl: Excessive time spent checking DH keys and parameters [rhel-8])
Family
unix
Platform
Oracle Linux 8
Product
edk2
Reference
VENDOR: ELSA-2024-0888
VENDOR: ELSA-2024-0888
Id:
ELSA-2024-0888
Reference:
http://linux.oracle.com/errata/ELSA-2024-0888.html
CVE: CVE-2023-3446
CVE: CVE-2023-3446
Id:
CVE-2023-3446
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-3446
Comment
: Issue summary: Checking excessively long DH keys or parameters may be very slow. Impact summary: 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. The function DH_check() performs various checks on DH parameters. One of those checks confirms that the modulus ('p' parameter) is not too large. Trying to use a very large modulus is slow and OpenSSL will not normally use a modulus which is over 10,000 bits in length. However the DH_check() function checks numerous aspects of the key or parameters that have been supplied. Some of those checks use the supplied modulus value even if it has already been found to be too large. An application that calls DH_check() and supplies a key or parameters obtained from an untrusted source could be vulernable to a Denial of Service attack. The function DH_check() is itself called by a number of other OpenSSL functions. An application calling any of those other functions may similarly be affected. The other functions affected by this are DH_check_ex() and EVP_PKEY_param_check(). Also vulnerable are the OpenSSL dhparam and pkeyparam command line applications when using the '-check' option. The OpenSSL SSL/TLS implementation is not affected by this issue. The OpenSSL 3.0 and 3.1 FIPS providers are not affected by this issue.
CVSSv3 Score:
5.3
Attack vector:
NETWORK
Attack complexity:
LOW
Privileges required:
NONE
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
LOW
CVSSv3 Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE:
1333 ()
References:
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=fc9867c1e03c22ebf56943be205202e576aabf23 (MISC)
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=8780a896543a654e757db1b9396383f9d8095528 (MISC)
https://www.openssl.org/news/secadv/20230719.txt (MISC)
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=9a0a4d3c1e7138915563c0df4fe6a3f9377b839c (MISC)
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=1fa20cf2f506113c761777127a38bce5068740eb (MISC)
http://www.openwall.com/lists/oss-security/2023/07/19/5 (MISC)
http://www.openwall.com/lists/oss-security/2023/07/19/4 (MISC)
http://www.openwall.com/lists/oss-security/2023/07/19/6 (MISC)
http://www.openwall.com/lists/oss-security/2023/07/31/1 (MISC)
https://security.netapp.com/advisory/ntap-20230803-0011/ (MISC)
https://lists.debian.org/debian-lts-announce/2023/08/msg00019.html (MISC)
https://security.gentoo.org/glsa/202402-08 ()
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