Orta CVSS 5.3

CVE-2023-3817: Openssl: güvenlik açığı

Yayın: 31 Temmuz 2023 19:15 · Güncelleme: 6 Kasım 2026 09:46

Açıklama (NVD)

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.

Özet bilgiler

Ürün: Openssl Openssl
CVSS v3.1: 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS: %3,05 (yüzdelik 88)
CWE: CWE-606
Yama: Mevcut

Etkilenen sürümler

Ürün	Başlangıç	Bitiş	Düzeltildi
openssl-openssl	3.0.0	—	3.0.10
openssl-openssl	3.1.0	—	3.1.2
openssl-openssl	1.0.2	1.0.2	—
openssl-openssl	1.0.2	1.0.2	—
openssl-openssl	1.0.2	1.0.2	—
openssl-openssl	1.0.2	1.0.2	—
openssl-openssl	1.0.2a	1.0.2a	—
openssl-openssl	1.0.2b	1.0.2b	—
openssl-openssl	1.0.2c	1.0.2c	—
openssl-openssl	1.0.2d	1.0.2d	—
openssl-openssl	1.0.2e	1.0.2e	—
openssl-openssl	1.0.2f	1.0.2f	—
openssl-openssl	1.0.2g	1.0.2g	—
openssl-openssl	1.0.2h	1.0.2h	—
openssl-openssl	1.0.2i	1.0.2i	—
openssl-openssl	1.0.2j	1.0.2j	—
openssl-openssl	1.0.2k	1.0.2k	—
openssl-openssl	1.0.2l	1.0.2l	—
openssl-openssl	1.0.2m	1.0.2m	—
openssl-openssl	1.0.2n	1.0.2n	—
openssl-openssl	1.0.2o	1.0.2o	—
openssl-openssl	1.0.2p	1.0.2p	—
openssl-openssl	1.0.2q	1.0.2q	—
openssl-openssl	1.0.2r	1.0.2r	—
openssl-openssl	1.0.2s	1.0.2s	—
openssl-openssl	1.0.2t	1.0.2t	—
openssl-openssl	1.0.2u	1.0.2u	—
openssl-openssl	1.0.2v	1.0.2v	—
openssl-openssl	1.0.2w	1.0.2w	—
openssl-openssl	1.0.2x	1.0.2x	—

Kaynaklar

Uygulamada aç Tüm CVE kayıtları