Incorrect Authentication Tag length usage in AES GCM decryption in OpenIDC/cjose
概要
Incorrect Authentication Tag length usage in AES GCM decryption in OpenIDC/cjose
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)。
OpenIDC/cjose is a C library implementing the Javascript Object Signing and Encryption (JOSE). The AES GCM decryption routine incorrectly uses the Tag length from the actual Authentication Tag provided in the JWE. The spec says that a fixed length of 16 octets must be applied. Therefore this bug allows an attacker to provide a truncated Authentication Tag and to modify the JWE accordingly. Users should upgrade to a version >= 0.6.2.2. Users unable to upgrade should avoid using AES GCM encryption and replace it with another encryption algorithm (e.g. AES CBC).
出典: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
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
- Debian DEBIAN-CVE-2023-37464 cjose 修正版: 0.6.1+dfsg1-1+deb11u1
- Ubuntu UBUNTU-CVE-2023-37464 cjose 修正版: 0.6.0+dfsg1-1ubuntu0.1~esm1
参照URL
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov
- advisory debian.org
- patch github.com
- web datatracker.ietf.org
- web github.com
- web lists.debian.org
- web lists.fedoraproject.org
- web lists.fedoraproject.org
- web lists.fedoraproject.org