Yüksek CVSS 7.4

CVE-2023-0286: Openssl: güvenlik açığı

Yayın: 8 Şubat 2023 23:15 · Güncelleme: 6 Kasım 2026 09:48

Açıklama (NVD)

There is a type confusion vulnerability relating to X.400 address processing inside an X.509 GeneralName. X.400 addresses were parsed as an ASN1_STRING but the public structure definition for GENERAL_NAME incorrectly specified the type of the x400Address field as ASN1_TYPE. This field is subsequently interpreted by the OpenSSL function GENERAL_NAME_cmp as an ASN1_TYPE rather than an ASN1_STRING. When CRL checking is enabled (i.e. the application sets the X509_V_FLAG_CRL_CHECK flag), this vulnerability may allow an attacker to pass arbitrary pointers to a memcmp call, enabling them to read memory contents or enact a denial of service. In most cases, the attack requires the attacker to provide both the certificate chain and CRL, neither of which need to have a valid signature. If the attacker only controls one of these inputs, the other input must already contain an X.400 address as a CRL distribution point, which is uncommon. As such, this vulnerability is most likely to only affect applications which have implemented their own functionality for retrieving CRLs over a network.

Özet bilgiler

Ürün: Openssl Openssl
CVSS v3.1: 7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H
EPSS: %69,29 (yüzdelik 99)
CWE: CWE-843
Yama: Mevcut

Etkilenen sürümler

Ürün	Başlangıç	Bitiş	Düzeltildi
openssl-openssl	1.0.2	—	1.0.2zg
openssl-openssl	1.1.1	—	1.1.1t
openssl-openssl	3.0.0	—	3.0.8
stormshield-stormshield-management-center	—	—	3.3.3
stormshield-stormshield-network-security	2.7.0	—	2.7.11
stormshield-stormshield-network-security	2.8.0	—	3.7.34
stormshield-stormshield-network-security	3.8.0	—	3.11.22
stormshield-stormshield-network-security	4.0.0	—	4.3.16
stormshield-stormshield-network-security	4.4.0	—	4.6.3

Kaynaklar

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