NVD - CVE-2023-5678 (original) (raw)
CVE-2023-5678 Detail
Current Description
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.
Analysis Description
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.
Metrics
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:
NIST: NVD
N/A
NVD assessment not yet provided.
CVSS 3.x Severity and Vector Strings:
NIST: NVD
Base Score: 5.3 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
ADP: CISA-ADP
Base Score: 5.3 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS 2.0 Severity and Vector Strings:
NIST: NVD
Base Score: N/A
NVD assessment not yet provided.
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-754 | Improper Check for Unusual or Exceptional Conditions | NIST |
| CWE-606 | Unchecked Input for Loop Condition | OpenSSL Software Foundation |
Known Affected Software Configurations Switch to CPE 2.2
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Change History
15 change records found show changes
CVE Modified by siemens-SADP 6/17/2026 2:49:03 AM
| Action | Type | Old Value | New Value |
|---|---|---|---|
| Added | Affected | [{"vendor":"Siemens","product":"RUGGEDCOM RST2428P","defaultStatus":"unknown","versions":[{"version":"0","lessThan":"*","versionType":"custom","status":"unaffected"}]},{"vendor":"Siemens","product":"SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family","defaultStatus":"unknown","versions":[{"version":"0","lessThan":"*","versionType":"custom","status":"unaffected"}]},{"vendor":"Siemens","product":"SCALANCE XCM-/XRM-/XCH-/XRH-300 family","defaultStatus":"unknown","versions":[{"version":"0","lessThan":"*","versionType":"custom","status":"unaffected"}]},{"vendor":"Siemens","product":"SIDIS Prime","defaultStatus":"unknown","versions":[{"version":"0","lessThan":"V4.0.700","versionType":"custom","status":"affected"}]},{"vendor":"Siemens","product":"SIMATIC S7-1500 TM MFP - GNU/Linux subsystem","defaultStatus":"unknown","versions":[{"version":"0","lessThan":"*","versionType":"custom","status":"affected"}]},{"vendor":"Siemens","product":"SINEC NMS","defaultStatus":"unknown","versions":[{"version":"0","lessThan":"V3.0 SP1","versionType":"custom","status":"affected"}]},{"vendor":"Siemens","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","defaultStatus":"unknown","versions":[{"version":"V3.1.0","lessThan":"V3.1.5","versionType":"custom","status":"affected"}]},{"vendor":"Siemens","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","defaultStatus":"unknown","versions":[{"version":"V3.1.0","lessThan":"V3.1.5","versionType":"custom","status":"affected"}]},{"vendor":"Siemens","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","defaultStatus":"unknown","versions":[{"version":"V3.1.0","lessThan":"V3.1.5","versionType":"custom","status":"affected"}]},{"vendor":"Siemens","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","defaultStatus":"unknown","versions":[{"version":"V3.1.0","lessThan":"V3.1.5","versionType":"custom","status":"affected"}]},{"vendor":"Siemens","product":"SIPLUS S7-1500 CPU 1518-4 PN/DP MFP","defaultStatus":"unknown","versions":[{"version":"V3.1.0","lessThan":"V3.1.5","versionType":"custom","status":"affected"}]}] |
CVE Modified by CISA-ADP 6/17/2026 2:49:03 AM
| Action | Type | Old Value | New Value |
|---|---|---|---|
| Added | SSVC | {"timestamp":"2025-12-02T19:42:37.122304Z","id":"CVE-2023-5678","options":[{"exploitation":"none"},{"automatable":"yes"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"} |
CVE Modified by OpenSSL Software Foundation 6/17/2026 2:49:03 AM
| Action | Type | Old Value | New Value |
|---|---|---|---|
| Added | Affected | [{"vendor":"OpenSSL","product":"OpenSSL","defaultStatus":"unaffected","versions":[{"version":"1.0.2","lessThan":"1.0.2zj","versionType":"custom","status":"affected"},{"version":"1.1.1","lessThan":"1.1.1x","versionType":"custom","status":"affected"},{"version":"3.0.0","lessThan":"3.0.13","versionType":"semver","status":"affected"},{"version":"3.1.0","lessThan":"3.1.5","versionType":"semver","status":"affected"}]}] |
CVE Modified by siemens-SADP 5/12/2026 7:16:17 AM
CVE Modified by CISA-ADP 12/02/2025 3:15:49 PM
| Action | Type | Old Value | New Value |
|---|---|---|---|
| Added | CVSS V3.1 | AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
CVE Modified by CVE 11/03/2025 5:16:32 PM
| Action | Type | Old Value | New Value |
|---|---|---|---|
| Added | Reference | https://lists.debian.org/debian-lts-announce/2024/10/msg00033.html | |
| Added | Reference | https://lists.debian.org/debian-lts-announce/2024/11/msg00000.html |
CVE Modified by CVE 11/21/2024 3:42:15 AM
| Action | Type | Old Value | New Value |
|---|---|---|---|
| Added | Reference | http://www.openwall.com/lists/oss-security/2024/03/11/1 | |
| Added | Reference | https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=34efaef6c103d636ab507a0cc34dca4d3aecc055 | |
| Added | Reference | https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=710fee740904b6290fef0dd5536fbcedbc38ff0c | |
| Added | Reference | https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=db925ae2e65d0d925adef429afc37f75bd1c2017 | |
| Added | Reference | https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=ddeb4b6c6d527e54ce9a99cba785c0f7776e54b6 | |
| Added | Reference | https://security.netapp.com/advisory/ntap-20231130-0010/ | |
| Added | Reference | https://www.openssl.org/news/secadv/20231106.txt |
CVE Modified by OpenSSL Software Foundation 10/14/2024 11:15:12 AM
| Action | Type | Old Value | New Value |
|---|---|---|---|
| Changed | Description | 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. | 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. |
| Added | CWE | OpenSSL Software Foundation CWE-606 | |
| Removed | Reference | OpenSSL Software Foundation http://www.openwall.com/lists/oss-security/2024/03/11/1 | |
| Removed | Reference | OpenSSL Software Foundation https://security.netapp.com/advisory/ntap-20231130-0010/ |
CVE Modified by OpenSSL Software Foundation 5/14/2024 10:28:46 AM
| Action | Type | Old Value | New Value |
|---|
CVE Modified by OpenSSL Software Foundation 5/01/2024 2:15:12 PM
| Action | Type | Old Value | New Value |
|---|---|---|---|
| Added | Reference | OpenSSL Software Foundation http://www.openwall.com/lists/oss-security/2024/03/11/1 [No types assigned] |
CVE Modified by OpenSSL Software Foundation 11/30/2023 5:15:09 PM
| Action | Type | Old Value | New Value |
|---|---|---|---|
| Added | Reference | OpenSSL Software Foundation https://security.netapp.com/advisory/ntap-20231130-0010/ [No types assigned] |
Reanalysis by NIST 11/21/2023 11:54:10 AM
| Action | Type | Old Value | New Value |
|---|---|---|---|
| Added | CVSS V3.1 | NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L | |
| Removed | CVSS V3.1 | NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Initial Analysis by NIST 11/14/2023 12:46:06 PM
CVE Modified by OpenSSL Software Foundation 11/07/2023 9:15:24 AM
| Action | Type | Old Value | New Value |
|---|---|---|---|
| Removed | Reference | OpenSSL Software Foundation http://www.openwall.com/lists/oss-security/2023/11/06/2 |
CVE Modified by OpenSSL Software Foundation 11/06/2023 2:15:09 PM
| Action | Type | Old Value | New Value |
|---|---|---|---|
| Added | Reference | http://www.openwall.com/lists/oss-security/2023/11/06/2 [No Types Assigned] |
Quick Info
CVE Dictionary Entry:
CVE-2023-5678
NVD Published Date:
11/06/2023
NVD Last Modified:
06/17/2026
Source:
OpenSSL Software Foundation