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Medium ALAS2-2024-2494 1 CVE

Moderate: c-ares security update (Amazon Linux 2)

Published Mar 13, 2024 · Updated Mar 18, 2024

Summary

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2024-25629: 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.

Fixed packages 3

ReleasePackageFixed in
Amazon Linux · 2 c-ares 0:1.10.0-3.amzn2.0.6
Amazon Linux · 2 c-ares-debuginfo 0:1.10.0-3.amzn2.0.6
Amazon Linux · 2 c-ares-devel 0:1.10.0-3.amzn2.0.6

Vulnerabilities 1

  • Medium 4.4

    c-ares out of bounds read in ares__read_line()

    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.…

References

  • web
    https://alas.aws.amazon.com/cve/html/CVE-2024-25629.html