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.
References
Configurations
Configuration 1 (hide)
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History
04 Feb 2024, 09:15
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06 Nov 2023, 19:15
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27 Oct 2023, 15:15
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23 Sep 2023, 00:15
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22 Sep 2023, 21:15
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18 Aug 2023, 14:15
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16 Aug 2023, 08:15
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08 Aug 2023, 19:04
| Type | Values Removed | Values Added |
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| CWE | CWE-834 | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.3 |
| First Time |
Openssl
Openssl openssl |
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| CPE | cpe:2.3:a:openssl:openssl:1.0.2:beta1:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.0.2q:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.0.2:beta2:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.0.2h:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.1.1b:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.0.2o:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.1.1r:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.0.2s:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.1.1d:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.0.2:beta3:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.0.2f:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.1.1c:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.1.1m:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.0.2p:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.0.2za:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.0.2zd:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.1.1:pre1:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.0.2w:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.1.1n:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.1.1s:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.1.1:pre6:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.0.2zf:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.1.1e:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.0.2x:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.1.1:pre3:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.1.1q:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.1.1a:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.0.2e:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.0.2l:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.0.2zh:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.0.2i:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.1.1:pre8:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.0.2y:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.0.2v:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.0.2g:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.0.2k:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.1.1k:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.1.1u:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.0.2zg:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.1.1:pre2:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.1.1:pre4:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.0.2d:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.0.2n:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.1.1l:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.0.2zc:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.1.1:pre9:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.1.1i:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.1.1o:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.1.1p:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.0.2b:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.0.2zb:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.1.1:pre5:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.1.1:-:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.0.2m:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.1.1g:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.0.2r:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.1.1f:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.1.1t:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.0.2u:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.0.2ze:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.0.2:-:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.1.1:pre7:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.0.2t:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.1.1j:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.0.2c:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.0.2a:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.1.1h:*:*:*:*:*:*:* cpe:2.3:a:openssl:openssl:1.0.2j:*:*:*:*:*:*:* |
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| References | (MISC) http://seclists.org/fulldisclosure/2023/Jul/43 - Mailing List, Third Party Advisory | |
| References | (MISC) http://www.openwall.com/lists/oss-security/2023/07/31/1 - Mailing List | |
| References | (MISC) https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=91ddeba0f2269b017dc06c46c993a788974b1aa5 - Mailing List, Patch | |
| References | (MISC) https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=9002fd07327a91f35ba6c1307e71fa6fd4409b7f - Mailing List, Patch | |
| References | (MISC) https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=6a1eb62c29db6cb5eec707f9338aee00f44e26f5 - Mailing List, Patch | |
| References | (MISC) https://www.openssl.org/news/secadv/20230731.txt - Vendor Advisory | |
| References | (MISC) https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=869ad69aadd985c7b8ca6f4e5dd0eb274c9f3644 - Broken Link |
01 Aug 2023, 11:15
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31 Jul 2023, 18:15
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31 Jul 2023, 17:30
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| New CVE |
Information
Published : 2023-07-31 16:15
Updated : 2024-02-04 09:15
NVD link : CVE-2023-3817
Mitre link : CVE-2023-3817
CVE.ORG link : CVE-2023-3817
JSON object : View
Products Affected
openssl
- openssl
CWE
CWE-834
Excessive Iteration