Amazon Linux 2023 Security Advisory: ALAS-2024-563
Advisory Release Date: 2024-03-13 20:41 Pacific
Advisory Updated Date: 2024-03-21 14:00 Pacific
Severity:
Medium
Issue Overview:
c-ares is a C library for asynchronous DNS requests. `ares__read_line()` is used to parse local configuration files such as `/etc/resolv.conf`, `/etc/nsswitch.conf`, the `HOSTALIASES` file, and if using a c-ares version prior to 1.27.0, the `/etc/hosts` file. If any of these configuration files has an embedded `NULL` character as the first character in a new line, it can lead to attempting to read memory prior to the start of the given buffer which may result in a crash. This issue is fixed in c-ares 1.27.0. No known workarounds exist. (CVE-2024-25629)
Affected Packages:
c-ares
Issue Correction:
Run dnf update c-ares --releasever 2023.4.20240319 to update your system.
New Packages:
aarch64:
c-ares-1.19.0-1.amzn2023.0.1.aarch64
c-ares-debuginfo-1.19.0-1.amzn2023.0.1.aarch64
c-ares-debugsource-1.19.0-1.amzn2023.0.1.aarch64
c-ares-devel-1.19.0-1.amzn2023.0.1.aarch64
src:
c-ares-1.19.0-1.amzn2023.0.1.src
x86_64:
c-ares-debuginfo-1.19.0-1.amzn2023.0.1.x86_64
c-ares-1.19.0-1.amzn2023.0.1.x86_64
c-ares-debugsource-1.19.0-1.amzn2023.0.1.x86_64
c-ares-devel-1.19.0-1.amzn2023.0.1.x86_64