NULL dereference during PKCS7 data verification
概要
NULL dereference during PKCS7 data verification
原文の説明
取得元が公開している説明をそのまま載せています (多くは英語)。
A NULL pointer can be dereferenced when signatures are being
verified on PKCS7 signed or signedAndEnveloped data. In case the hash
algorithm used for the signature is known to the OpenSSL library but
the implementation of the hash algorithm is not available the digest
initialization will fail. There is a missing check for the return
value from the initialization function which later leads to invalid
usage of the digest API most likely leading to a crash.
The unavailability of an algorithm can be caused by using FIPS
enabled configuration of providers or more commonly by not loading
the legacy provider.
PKCS7 data is processed by the SMIME library calls and also by the
time stamp (TS) library calls. The TLS implementation in OpenSSL does
not call these functions however third party applications would be
affected if they call these functions to verify signatures on untrusted
data.
出典: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
影響パッケージ
ディストリビューション別の修正状況
各ディストリビューションが公開している、この CVE の修正パッケージ
- Alpine Linux ALPINE-CVE-2023-0401 openssl 修正版: 3.0.8-r0
- Debian DEBIAN-CVE-2023-0401 openssl 修正版: 3.0.8-1
参照URL
- advisory nvd.nist.gov
- advisory security.gentoo.org
- advisory openssl.org
- advisory github.com
- package github.com
- patch git.openssl.org
- web psirt.global.sonicwall.com
- web rustsec.org