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. After fixing CVE-2023-3446 it was discovered that a large q parameter value can also trigger an overly long computation during some of these checks. A correct q value, if present, cannot be larger than the modulus p parameter, thus it is unnecessary to perform these checks if q is larger than p.
An application that calls DH_check() and supplies a key or parameters obtained from an untrusted source could be vulnerable 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.
Weakness
The product does not properly check inputs that are used for loop conditions, potentially leading to a denial of service or other consequences because of excessive looping.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Openssl | Openssl | 3.0.0 (including) | 3.0.10 (excluding) |
| Openssl | Openssl | 3.1.0 (including) | 3.1.2 (excluding) |
| Openssl | Openssl | 1.0.2 (including) | 1.0.2 (including) |
| Openssl | Openssl | 1.0.2-beta1 (including) | 1.0.2-beta1 (including) |
| Openssl | Openssl | 1.0.2-beta2 (including) | 1.0.2-beta2 (including) |
| Openssl | Openssl | 1.0.2-beta3 (including) | 1.0.2-beta3 (including) |
| Openssl | Openssl | 1.0.2a (including) | 1.0.2a (including) |
| Openssl | Openssl | 1.0.2b (including) | 1.0.2b (including) |
| Openssl | Openssl | 1.0.2c (including) | 1.0.2c (including) |
| Openssl | Openssl | 1.0.2d (including) | 1.0.2d (including) |
| Openssl | Openssl | 1.0.2e (including) | 1.0.2e (including) |
| Openssl | Openssl | 1.0.2f (including) | 1.0.2f (including) |
| Openssl | Openssl | 1.0.2g (including) | 1.0.2g (including) |
| Openssl | Openssl | 1.0.2h (including) | 1.0.2h (including) |
| Openssl | Openssl | 1.0.2i (including) | 1.0.2i (including) |
| Openssl | Openssl | 1.0.2j (including) | 1.0.2j (including) |
| Openssl | Openssl | 1.0.2k (including) | 1.0.2k (including) |
| Openssl | Openssl | 1.0.2l (including) | 1.0.2l (including) |
| Openssl | Openssl | 1.0.2m (including) | 1.0.2m (including) |
| Openssl | Openssl | 1.0.2n (including) | 1.0.2n (including) |
| Openssl | Openssl | 1.0.2o (including) | 1.0.2o (including) |
| Openssl | Openssl | 1.0.2p (including) | 1.0.2p (including) |
| Openssl | Openssl | 1.0.2q (including) | 1.0.2q (including) |
| Openssl | Openssl | 1.0.2r (including) | 1.0.2r (including) |
| Openssl | Openssl | 1.0.2s (including) | 1.0.2s (including) |
| Openssl | Openssl | 1.0.2t (including) | 1.0.2t (including) |
| Openssl | Openssl | 1.0.2u (including) | 1.0.2u (including) |
| Openssl | Openssl | 1.0.2v (including) | 1.0.2v (including) |
| Openssl | Openssl | 1.0.2w (including) | 1.0.2w (including) |
| Openssl | Openssl | 1.0.2x (including) | 1.0.2x (including) |
| Openssl | Openssl | 1.0.2y (including) | 1.0.2y (including) |
| Openssl | Openssl | 1.0.2za (including) | 1.0.2za (including) |
| Openssl | Openssl | 1.0.2zb (including) | 1.0.2zb (including) |
| Openssl | Openssl | 1.0.2zc (including) | 1.0.2zc (including) |
| Openssl | Openssl | 1.0.2zd (including) | 1.0.2zd (including) |
| Openssl | Openssl | 1.0.2ze (including) | 1.0.2ze (including) |
| Openssl | Openssl | 1.0.2zf (including) | 1.0.2zf (including) |
| Openssl | Openssl | 1.0.2zg (including) | 1.0.2zg (including) |
| Openssl | Openssl | 1.0.2zh (including) | 1.0.2zh (including) |
| Openssl | Openssl | 1.1.1 (including) | 1.1.1 (including) |
| Openssl | Openssl | 1.1.1-pre1 (including) | 1.1.1-pre1 (including) |
| Openssl | Openssl | 1.1.1-pre2 (including) | 1.1.1-pre2 (including) |
| Openssl | Openssl | 1.1.1-pre3 (including) | 1.1.1-pre3 (including) |
| Openssl | Openssl | 1.1.1-pre4 (including) | 1.1.1-pre4 (including) |
| Openssl | Openssl | 1.1.1-pre5 (including) | 1.1.1-pre5 (including) |
| Openssl | Openssl | 1.1.1-pre6 (including) | 1.1.1-pre6 (including) |
| Openssl | Openssl | 1.1.1-pre7 (including) | 1.1.1-pre7 (including) |
| Openssl | Openssl | 1.1.1-pre8 (including) | 1.1.1-pre8 (including) |
| Openssl | Openssl | 1.1.1-pre9 (including) | 1.1.1-pre9 (including) |
| Openssl | Openssl | 1.1.1a (including) | 1.1.1a (including) |
| Openssl | Openssl | 1.1.1b (including) | 1.1.1b (including) |
| Openssl | Openssl | 1.1.1c (including) | 1.1.1c (including) |
| Openssl | Openssl | 1.1.1d (including) | 1.1.1d (including) |
| Openssl | Openssl | 1.1.1e (including) | 1.1.1e (including) |
| Openssl | Openssl | 1.1.1f (including) | 1.1.1f (including) |
| Openssl | Openssl | 1.1.1g (including) | 1.1.1g (including) |
| Openssl | Openssl | 1.1.1h (including) | 1.1.1h (including) |
| Openssl | Openssl | 1.1.1i (including) | 1.1.1i (including) |
| Openssl | Openssl | 1.1.1j (including) | 1.1.1j (including) |
| Openssl | Openssl | 1.1.1k (including) | 1.1.1k (including) |
| Openssl | Openssl | 1.1.1l (including) | 1.1.1l (including) |
| Openssl | Openssl | 1.1.1m (including) | 1.1.1m (including) |
| Openssl | Openssl | 1.1.1n (including) | 1.1.1n (including) |
| Openssl | Openssl | 1.1.1o (including) | 1.1.1o (including) |
| Openssl | Openssl | 1.1.1p (including) | 1.1.1p (including) |
| Openssl | Openssl | 1.1.1q (including) | 1.1.1q (including) |
| Openssl | Openssl | 1.1.1r (including) | 1.1.1r (including) |
| Openssl | Openssl | 1.1.1s (including) | 1.1.1s (including) |
| Openssl | Openssl | 1.1.1t (including) | 1.1.1t (including) |
| Openssl | Openssl | 1.1.1u (including) | 1.1.1u (including) |
| JBoss Core Services for RHEL 8 | RedHat | jbcs-httpd24-openssl-1:1.1.1k-16.el8jbcs | * |
| JBoss Core Services on RHEL 7 | RedHat | jbcs-httpd24-openssl-1:1.1.1k-16.el7jbcs | * |
| Red Hat Enterprise Linux 8 | RedHat | openssl-1:1.1.1k-12.el8_9 | * |
| Red Hat Enterprise Linux 8.6 Extended Update Support | RedHat | openssl-1:1.1.1k-12.el8_6 | * |
| Red Hat Enterprise Linux 8.8 Extended Update Support | RedHat | openssl-1:1.1.1k-12.el8_8 | * |
| Red Hat Enterprise Linux 9 | RedHat | openssl-1:3.0.7-27.el9 | * |
| Red Hat Enterprise Linux 9 | RedHat | openssl-1:3.0.7-27.el9 | * |
| Red Hat JBoss Web Server 5 | RedHat | jbcs-httpd24-openssl | * |
| Red Hat JBoss Web Server 5.7 on RHEL 7 | RedHat | jws5-tomcat-native-0:1.2.31-16.redhat_16.el7jws | * |
| Red Hat JBoss Web Server 5.7 on RHEL 8 | RedHat | jws5-tomcat-native-0:1.2.31-16.redhat_16.el8jws | * |
| Red Hat JBoss Web Server 5.7 on RHEL 9 | RedHat | jws5-tomcat-native-0:1.2.31-16.redhat_16.el9jws | * |
| Red Hat Satellite 6.13 for RHEL 8 | RedHat | puppet-agent-0:7.26.0-3.el8sat | * |
| Red Hat Satellite 6.13 for RHEL 8 | RedHat | puppet-agent-0:7.26.0-3.el8sat | * |
| Text-Only JBCS | RedHat | jbcs-httpd24-openssl | * |
| Edk2 | Ubuntu | bionic | * |
| Edk2 | Ubuntu | esm-infra/focal | * |
| Edk2 | Ubuntu | focal | * |
| Edk2 | Ubuntu | jammy | * |
| Edk2 | Ubuntu | lunar | * |
| Edk2 | Ubuntu | mantic | * |
| Edk2 | Ubuntu | noble | * |
| Edk2 | Ubuntu | oracular | * |
| Edk2 | Ubuntu | trusty | * |
| Edk2 | Ubuntu | xenial | * |
| Nodejs | Ubuntu | esm-apps/jammy | * |
| Nodejs | Ubuntu | jammy | * |
| Nodejs | Ubuntu | trusty | * |
| Openssl | Ubuntu | bionic | * |
| Openssl | Ubuntu | esm-infra/bionic | * |
| Openssl | Ubuntu | esm-infra/focal | * |
| Openssl | Ubuntu | esm-infra/xenial | * |
| Openssl | Ubuntu | fips-preview/jammy | * |
| Openssl | Ubuntu | fips-updates/bionic | * |
| Openssl | Ubuntu | fips-updates/focal | * |
| Openssl | Ubuntu | fips-updates/jammy | * |
| Openssl | Ubuntu | fips-updates/xenial | * |
| Openssl | Ubuntu | fips/bionic | * |
| Openssl | Ubuntu | fips/focal | * |
| Openssl | Ubuntu | fips/xenial | * |
| Openssl | Ubuntu | focal | * |
| Openssl | Ubuntu | jammy | * |
| Openssl | Ubuntu | lunar | * |
| Openssl | Ubuntu | trusty | * |
| Openssl | Ubuntu | upstream | * |
| Openssl | Ubuntu | xenial | * |
| Openssl1.0 | Ubuntu | bionic | * |
| Openssl1.0 | Ubuntu | esm-infra/bionic | * |
| Openssl1.0 | Ubuntu | upstream | * |
Potential Mitigations
References
- https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=6a1eb62c29db6cb5eec707f9338aee00f44e26f5
- https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=869ad69aadd985c7b8ca6f4e5dd0eb274c9f3644
- https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=9002fd07327a91f35ba6c1307e71fa6fd4409b7f
- https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=91ddeba0f2269b017dc06c46c993a788974b1aa5
- https://www.openssl.org/news/secadv/20230731.txt
- http://seclists.org/fulldisclosure/2023/Jul/43
- 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
- https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=6a1eb62c29db6cb5eec707f9338aee00f44e26f5
- https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=869ad69aadd985c7b8ca6f4e5dd0eb274c9f3644
- https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=9002fd07327a91f35ba6c1307e71fa6fd4409b7f
- https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=91ddeba0f2269b017dc06c46c993a788974b1aa5
- https://lists.debian.org/debian-lts-announce/2023/08/msg00019.html
- https://security.gentoo.org/glsa/202402-08
- https://security.netapp.com/advisory/ntap-20230818-0014/
- https://security.netapp.com/advisory/ntap-20231027-0008/
- https://security.netapp.com/advisory/ntap-20240621-0006/
- https://www.openssl.org/news/secadv/20230731.txt