Amazon Linux 2023 Security Advisory: ALAS-2023-043
Advisory Release Date: 2023-02-17 20:44 Pacific
Advisory Updated Date: 2023-02-22 23:45 Pacific
Severity:
Important
Issue Overview:
An arbitrary file write vulnerability was found in GNU gzip's zgrep utility. When zgrep is applied on the attacker's chosen file name (for example, a crafted file name), this can overwrite an attacker's content to an arbitrary attacker-selected file. This flaw occurs due to insufficient validation when processing filenames with two or more newlines where selected content and the target file names are embedded in crafted multi-line file names. This flaw allows a remote, low privileged attacker to force zgrep to write arbitrary files on the system. (CVE-2022-1271)
Affected Packages:
gzip
Issue Correction:
Run dnf update gzip --releasever=2023.0.20230222 to update your system.
New Packages:
aarch64:
gzip-debuginfo-1.10-5.amzn2023.0.2.aarch64
gzip-debugsource-1.10-5.amzn2023.0.2.aarch64
gzip-1.10-5.amzn2023.0.2.aarch64
src:
gzip-1.10-5.amzn2023.0.2.src
x86_64:
gzip-debuginfo-1.10-5.amzn2023.0.2.x86_64
gzip-debugsource-1.10-5.amzn2023.0.2.x86_64
gzip-1.10-5.amzn2023.0.2.x86_64