Vulmon
Amazon Linux 2 Security Advisory: ALAS-2024-2431
Advisory Release Date: 2024-01-19 01:51 Pacific
Advisory Updated Date: 2024-01-22 20:21 Pacific
ALPACA is an application layer protocol content confusion attack, exploiting TLS servers implementing different protocols but using compatible certificates, such as multi-domain or wildcard certificates. A MiTM attacker having access to victim's traffic at the TCP/IP layer can redirect traffic from one subdomain to another, resulting in a valid TLS session. This breaks the authentication of TLS and cross-protocol attacks may be possible where the behavior of one protocol service may compromise the other at the application layer. (CVE-2021-3618)
Affected Packages:
vsftpd
Note:
This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update vsftpd to update your system.
aarch64:
vsftpd-3.0.2-25.amzn2.0.1.aarch64
vsftpd-sysvinit-3.0.2-25.amzn2.0.1.aarch64
vsftpd-debuginfo-3.0.2-25.amzn2.0.1.aarch64
i686:
vsftpd-3.0.2-25.amzn2.0.1.i686
vsftpd-sysvinit-3.0.2-25.amzn2.0.1.i686
vsftpd-debuginfo-3.0.2-25.amzn2.0.1.i686
src:
vsftpd-3.0.2-25.amzn2.0.1.src
x86_64:
vsftpd-3.0.2-25.amzn2.0.1.x86_64
vsftpd-sysvinit-3.0.2-25.amzn2.0.1.x86_64
vsftpd-debuginfo-3.0.2-25.amzn2.0.1.x86_64