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.
NVD Severity
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Type URI

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:openssl:openssl:1.0.2a:*:*:*:*:*:*:* openssl == None == 1.0.2a
cpe:2.3:a:openssl:openssl:1.0.2e:*:*:*:*:*:*:* openssl == None == 1.0.2e
cpe:2.3:a:openssl:openssl:1.0.2j:*:*:*:*:*:*:* openssl == None == 1.0.2j
cpe:2.3:a:openssl:openssl:1.0.2b:*:*:*:*:*:*:* openssl == None == 1.0.2b
cpe:2.3:a:openssl:openssl:1.0.2g:*:*:*:*:*:*:* openssl == None == 1.0.2g
cpe:2.3:a:openssl:openssl:1.0.2h:*:*:*:*:*:*:* openssl == None == 1.0.2h
cpe:2.3:a:openssl:openssl:1.0.2c:*:*:*:*:*:*:* openssl == None == 1.0.2c
cpe:2.3:a:openssl:openssl:1.0.2:beta3:*:*:*:*:*:* openssl == None == 1.0.2
cpe:2.3:a:openssl:openssl:1.0.2f:*:*:*:*:*:*:* openssl == None == 1.0.2f
cpe:2.3:a:openssl:openssl:1.0.2i:*:*:*:*:*:*:* openssl == None == 1.0.2i
cpe:2.3:a:openssl:openssl:1.0.2d:*:*:*:*:*:*:* openssl == None == 1.0.2d
cpe:2.3:a:openssl:openssl:1.0.2k:*:*:*:*:*:*:* openssl == None == 1.0.2k
cpe:2.3:a:openssl:openssl:1.0.2l:*:*:*:*:*:*:* openssl == None == 1.0.2l
cpe:2.3:a:openssl:openssl:1.0.2m:*:*:*:*:*:*:* openssl == None == 1.0.2m
cpe:2.3:a:openssl:openssl:1.0.2zb:*:*:*:*:*:*:* openssl == None == 1.0.2zb
cpe:2.3:a:openssl:openssl:1.0.2n:*:*:*:*:*:*:* openssl == None == 1.0.2n
cpe:2.3:a:openssl:openssl:1.0.2o:*:*:*:*:*:*:* openssl == None == 1.0.2o
cpe:2.3:a:openssl:openssl:1.0.2p:*:*:*:*:*:*:* openssl == None == 1.0.2p
cpe:2.3:a:openssl:openssl:1.0.2q:*:*:*:*:*:*:* openssl == None == 1.0.2q
cpe:2.3:a:openssl:openssl:1.0.2r:*:*:*:*:*:*:* openssl == None == 1.0.2r
cpe:2.3:a:openssl:openssl:1.0.2s:*:*:*:*:*:*:* openssl == None == 1.0.2s
cpe:2.3:a:openssl:openssl:1.0.2t:*:*:*:*:*:*:* openssl == None == 1.0.2t
cpe:2.3:a:openssl:openssl:1.0.2u:*:*:*:*:*:*:* openssl == None == 1.0.2u
cpe:2.3:a:openssl:openssl:1.0.2v:*:*:*:*:*:*:* openssl == None == 1.0.2v
cpe:2.3:a:openssl:openssl:1.0.2w:*:*:*:*:*:*:* openssl == None == 1.0.2w
cpe:2.3:a:openssl:openssl:1.0.2x:*:*:*:*:*:*:* openssl == None == 1.0.2x
cpe:2.3:a:openssl:openssl:1.0.2y:*:*:*:*:*:*:* openssl == None == 1.0.2y
cpe:2.3:a:openssl:openssl:1.0.2za:*:*:*:*:*:*:* openssl == None == 1.0.2za
cpe:2.3:a:openssl:openssl:1.1.1:-:*:*:*:*:*:* openssl == None == 1.1.1
cpe:2.3:a:openssl:openssl:1.1.1a:*:*:*:*:*:*:* openssl == None == 1.1.1a
cpe:2.3:a:openssl:openssl:1.1.1b:*:*:*:*:*:*:* openssl == None == 1.1.1b
cpe:2.3:a:openssl:openssl:1.1.1c:*:*:*:*:*:*:* openssl == None == 1.1.1c
cpe:2.3:a:openssl:openssl:1.1.1d:*:*:*:*:*:*:* openssl == None == 1.1.1d
cpe:2.3:a:openssl:openssl:1.1.1e:*:*:*:*:*:*:* openssl == None == 1.1.1e
cpe:2.3:a:openssl:openssl:1.1.1f:*:*:*:*:*:*:* openssl == None == 1.1.1f
cpe:2.3:a:openssl:openssl:1.1.1g:*:*:*:*:*:*:* openssl == None == 1.1.1g
cpe:2.3:a:openssl:openssl:1.1.1h:*:*:*:*:*:*:* openssl == None == 1.1.1h
cpe:2.3:a:openssl:openssl:1.1.1i:*:*:*:*:*:*:* openssl == None == 1.1.1i
cpe:2.3:a:openssl:openssl:1.1.1j:*:*:*:*:*:*:* openssl == None == 1.1.1j
cpe:2.3:a:openssl:openssl:1.1.1k:*:*:*:*:*:*:* openssl == None == 1.1.1k
cpe:2.3:a:openssl:openssl:1.1.1l:*:*:*:*:*:*:* openssl == None == 1.1.1l
cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* openssl >= 3.1.0 < 3.1.2
cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* openssl >= 3.0.0 < 3.0.10
cpe:2.3:a:openssl:openssl:1.1.1m:*:*:*:*:*:*:* openssl == None == 1.1.1m
cpe:2.3:a:openssl:openssl:1.1.1n:*:*:*:*:*:*:* openssl == None == 1.1.1n
cpe:2.3:a:openssl:openssl:1.1.1o:*:*:*:*:*:*:* openssl == None == 1.1.1o
cpe:2.3:a:openssl:openssl:1.1.1p:*:*:*:*:*:*:* openssl == None == 1.1.1p
cpe:2.3:a:openssl:openssl:1.1.1q:*:*:*:*:*:*:* openssl == None == 1.1.1q
cpe:2.3:a:openssl:openssl:1.1.1r:*:*:*:*:*:*:* openssl == None == 1.1.1r
cpe:2.3:a:openssl:openssl:1.1.1s:*:*:*:*:*:*:* openssl == None == 1.1.1s
cpe:2.3:a:openssl:openssl:1.1.1t:*:*:*:*:*:*:* openssl == None == 1.1.1t
cpe:2.3:a:openssl:openssl:1.1.1u:*:*:*:*:*:*:* openssl == None == 1.1.1u
cpe:2.3:a:openssl:openssl:1.0.2zc:*:*:*:*:*:*:* openssl == None == 1.0.2zc
cpe:2.3:a:openssl:openssl:1.0.2zd:*:*:*:*:*:*:* openssl == None == 1.0.2zd
cpe:2.3:a:openssl:openssl:1.0.2ze:*:*:*:*:*:*:* openssl == None == 1.0.2ze
cpe:2.3:a:openssl:openssl:1.0.2zf:*:*:*:*:*:*:* openssl == None == 1.0.2zf
cpe:2.3:a:openssl:openssl:1.0.2zg:*:*:*:*:*:*:* openssl == None == 1.0.2zg
cpe:2.3:a:openssl:openssl:1.0.2zh:*:*:*:*:*:*:* openssl == None == 1.0.2zh

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
openssl3 3.16-main 3.0.11-r0 Ariadne Conill <> fixed
openssl3 3.15-main 3.0.11-r0 Timo Teras <> fixed