Vulmon
Amazon Linux 2 Security Advisory: ALASNGINX1-2023-002
Advisory Release Date: 2023-08-07 06:17 Pacific
Advisory Updated Date: 2023-09-25 22:09 Pacific
Severity:
Medium
Issue Overview:
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:
nginx
Issue Correction:
Run yum update nginx to update your system.
New Packages:
aarch64:
nginx-1.20.0-2.amzn2.0.4.aarch64
nginx-mod-http-geoip-1.20.0-2.amzn2.0.4.aarch64
nginx-mod-http-image-filter-1.20.0-2.amzn2.0.4.aarch64
nginx-mod-http-perl-1.20.0-2.amzn2.0.4.aarch64
nginx-mod-http-xslt-filter-1.20.0-2.amzn2.0.4.aarch64
nginx-mod-mail-1.20.0-2.amzn2.0.4.aarch64
nginx-mod-stream-1.20.0-2.amzn2.0.4.aarch64
nginx-debuginfo-1.20.0-2.amzn2.0.4.aarch64
noarch:
nginx-all-modules-1.20.0-2.amzn2.0.4.noarch
nginx-filesystem-1.20.0-2.amzn2.0.4.noarch
src:
nginx-1.20.0-2.amzn2.0.4.src
x86_64:
nginx-1.20.0-2.amzn2.0.4.x86_64
nginx-mod-http-geoip-1.20.0-2.amzn2.0.4.x86_64
nginx-mod-http-image-filter-1.20.0-2.amzn2.0.4.x86_64
nginx-mod-http-perl-1.20.0-2.amzn2.0.4.x86_64
nginx-mod-http-xslt-filter-1.20.0-2.amzn2.0.4.x86_64
nginx-mod-mail-1.20.0-2.amzn2.0.4.x86_64
nginx-mod-stream-1.20.0-2.amzn2.0.4.x86_64
nginx-debuginfo-1.20.0-2.amzn2.0.4.x86_64