CVE-2023-5678

Issue summary: Generating excessively long X9.42 DH keys or checking excessively long X9.42 DH keys or parameters may be very slow. Impact summary: Applications that use the functions DH_generate_key() to generate an X9.42 DH key may experience long delays. Likewise, applications that use DH_check_pub_key(), DH_check_pub_key_ex() or EVP_PKEY_public_check() to check an X9.42 DH key or X9.42 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. While DH_check() performs all the necessary checks (as of CVE-2023-3817), DH_check_pub_key() doesn't make any of these checks, and is therefore vulnerable for excessively large P and Q parameters. Likewise, while DH_generate_key() performs a check for an excessively large P, it doesn't check for an excessively large Q. An application that calls DH_generate_key() or DH_check_pub_key() and supplies a key or parameters obtained from an untrusted source could be vulnerable to a Denial of Service attack. DH_generate_key() and DH_check_pub_key() are also 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_pub_key_ex(), EVP_PKEY_public_check(), and EVP_PKEY_generate(). Also vulnerable are the OpenSSL pkey command line application when using the "-pubcheck" option, as well as the OpenSSL genpkey command line application. 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.
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*

History

14 Oct 2024, 15:15

Type Values Removed Values Added
Summary (en) Issue summary: Generating excessively long X9.42 DH keys or checking excessively long X9.42 DH keys or parameters may be very slow. Impact summary: Applications that use the functions DH_generate_key() to generate an X9.42 DH key may experience long delays. Likewise, applications that use DH_check_pub_key(), DH_check_pub_key_ex() or EVP_PKEY_public_check() to check an X9.42 DH key or X9.42 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. While DH_check() performs all the necessary checks (as of CVE-2023-3817), DH_check_pub_key() doesn't make any of these checks, and is therefore vulnerable for excessively large P and Q parameters. Likewise, while DH_generate_key() performs a check for an excessively large P, it doesn't check for an excessively large Q. An application that calls DH_generate_key() or DH_check_pub_key() and supplies a key or parameters obtained from an untrusted source could be vulnerable to a Denial of Service attack. DH_generate_key() and DH_check_pub_key() are also 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_pub_key_ex(), EVP_PKEY_public_check(), and EVP_PKEY_generate(). Also vulnerable are the OpenSSL pkey command line application when using the "-pubcheck" option, as well as the OpenSSL genpkey command line application. 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. (en) Issue summary: Generating excessively long X9.42 DH keys or checking excessively long X9.42 DH keys or parameters may be very slow. Impact summary: Applications that use the functions DH_generate_key() to generate an X9.42 DH key may experience long delays. Likewise, applications that use DH_check_pub_key(), DH_check_pub_key_ex() or EVP_PKEY_public_check() to check an X9.42 DH key or X9.42 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. While DH_check() performs all the necessary checks (as of CVE-2023-3817), DH_check_pub_key() doesn't make any of these checks, and is therefore vulnerable for excessively large P and Q parameters. Likewise, while DH_generate_key() performs a check for an excessively large P, it doesn't check for an excessively large Q. An application that calls DH_generate_key() or DH_check_pub_key() and supplies a key or parameters obtained from an untrusted source could be vulnerable to a Denial of Service attack. DH_generate_key() and DH_check_pub_key() are also 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_pub_key_ex(), EVP_PKEY_public_check(), and EVP_PKEY_generate(). Also vulnerable are the OpenSSL pkey command line application when using the "-pubcheck" option, as well as the OpenSSL genpkey command line application. 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.
References
  • {'url': 'http://www.openwall.com/lists/oss-security/2024/03/11/1', 'source': 'openssl-security@openssl.org'}
  • {'url': 'https://security.netapp.com/advisory/ntap-20231130-0010/', 'source': 'openssl-security@openssl.org'}
CWE CWE-606

01 May 2024, 18:15

Type Values Removed Values Added
References
  • () http://www.openwall.com/lists/oss-security/2024/03/11/1 -

30 Nov 2023, 22:15

Type Values Removed Values Added
References
  • () https://security.netapp.com/advisory/ntap-20231130-0010/ -

21 Nov 2023, 16:54

Type Values Removed Values Added
CVSS v2 : unknown
v3 : 7.5
v2 : unknown
v3 : 5.3

14 Nov 2023, 17:46

Type Values Removed Values Added
CPE cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
First Time Openssl
Openssl openssl
CWE CWE-754
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 7.5
References (MISC) https://www.openssl.org/news/secadv/20231106.txt - (MISC) https://www.openssl.org/news/secadv/20231106.txt - Vendor Advisory
References (MISC) https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=710fee740904b6290fef0dd5536fbcedbc38ff0c - (MISC) https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=710fee740904b6290fef0dd5536fbcedbc38ff0c - Broken Link
References (MISC) https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=ddeb4b6c6d527e54ce9a99cba785c0f7776e54b6 - (MISC) https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=ddeb4b6c6d527e54ce9a99cba785c0f7776e54b6 - Mailing List, Patch
References (MISC) https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=34efaef6c103d636ab507a0cc34dca4d3aecc055 - (MISC) https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=34efaef6c103d636ab507a0cc34dca4d3aecc055 - Broken Link
References (MISC) https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=db925ae2e65d0d925adef429afc37f75bd1c2017 - (MISC) https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=db925ae2e65d0d925adef429afc37f75bd1c2017 - Mailing List, Patch

07 Nov 2023, 14:15

Type Values Removed Values Added
References
  • {'url': 'http://www.openwall.com/lists/oss-security/2023/11/06/2', 'name': 'http://www.openwall.com/lists/oss-security/2023/11/06/2', 'tags': [], 'refsource': 'MISC'}

06 Nov 2023, 19:15

Type Values Removed Values Added
References
  • (MISC) http://www.openwall.com/lists/oss-security/2023/11/06/2 -

06 Nov 2023, 16:31

Type Values Removed Values Added
New CVE

Information

Published : 2023-11-06 16:15

Updated : 2024-10-14 15:15


NVD link : CVE-2023-5678

Mitre link : CVE-2023-5678

CVE.ORG link : CVE-2023-5678


JSON object : View

Products Affected

openssl

  • openssl
CWE
CWE-754

Improper Check for Unusual or Exceptional Conditions

CWE-606

Unchecked Input for Loop Condition