Amazon Linux 2027 Preview Security Advisory: ALAS2027-2026-193
Advisory Release Date: 2026-10-12 09:00 Pacific
Advisory Updated Date: 2026-10-20 15:48 Pacific
Severity:
Important
Issue Overview:
Package updates are available for Amazon Linux 2027 that fix the following vulnerabilities:
CVE-2026-94184:
A stack-based buffer overflow flaw was found in fetchmail when built with NTLM support. A malicious or compromised mail server advertising NTLM authentication can send a crafted Type 2 challenge that causes fetchmail to write past a fixed stack buffer while building the NTLM authenticate response. This may lead to remote code execution depending on stack-frame layout, or to authentication failure or process termination under memory hardening.
Affected Packages:
fetchmail
Issue Correction:
Run dnf update fetchmail --releasever 2027.0.20261012 or dnf update --advisory ALAS2027-2026-193 --releasever 2027.0.20261012 to update your system.
New Packages:
aarch64:
fetchmail-debuginfo-6.6.8-1.amzn2027.aarch64
fetchmail-debugsource-6.6.8-1.amzn2027.aarch64
fetchmail-6.6.8-1.amzn2027.aarch64
src:
fetchmail-6.6.8-1.amzn2027.src
x86_64:
fetchmail-debugsource-6.6.8-1.amzn2027.x86_64
fetchmail-debuginfo-6.6.8-1.amzn2027.x86_64
fetchmail-6.6.8-1.amzn2027.x86_64