Amazon Linux 2023 Security Advisory: ALAS2023-2026-1831
Advisory Released Date: 2026-06-22
Advisory Updated Date: 2026-06-22
Severity:
Medium
Issue Overview:
Text::LineFold versions through 2019.001 for Perl duplicate the output based on the number of special break characters.
Text::LineFold splits the input string by specific line break characters (such as VT, FF and others) into segments, but applies the break function to the entire string, not just the segment.
A side effect of this is that the full input can be duplicated for each segment. Besides being incorrect, this can lead to unexpected resource consumption and possible denial of service.
Note that Text::LineFold is part of the Unicode-LineBreak distribution, which may have a higher version number than the module. (CVE-2026-8594)
Affected Packages:
perl-Unicode-LineBreak
Issue Correction:
Run dnf update perl-Unicode-LineBreak --releasever 2023.12.20260622 or dnf update --advisory ALAS2023-2026-1831 --releasever 2023.12.20260622 to update your system.
More information on how to update your system can be found on this page: Amazon Linux 2023 documentation
New Packages:
aarch64:
perl-Unicode-LineBreak-debuginfo-2019.001-9.amzn2023.0.4.aarch64
perl-Unicode-LineBreak-debugsource-2019.001-9.amzn2023.0.4.aarch64
perl-Unicode-LineBreak-2019.001-9.amzn2023.0.4.aarch64
src:
perl-Unicode-LineBreak-2019.001-9.amzn2023.0.4.src
x86_64:
perl-Unicode-LineBreak-debuginfo-2019.001-9.amzn2023.0.4.x86_64
perl-Unicode-LineBreak-debugsource-2019.001-9.amzn2023.0.4.x86_64
perl-Unicode-LineBreak-2019.001-9.amzn2023.0.4.x86_64