Amazon Linux 2 Security Advisory: ALAS2-2026-3177
Advisory Released Date: 2026-03-06
Advisory Updated Date: 2026-03-06
time provides date and time handling in Rust. From 0.3.6 to before 0.3.47, when user-provided input is provided to any type that parses with the RFC 2822 format, a denial of service attack via stack exhaustion is possible. The attack relies on formally deprecated and rarely-used features that are part of the RFC 2822 format used in a malicious manner. Ordinary, non-malicious input will never encounter this scenario. A limit to the depth of recursion was added in v0.3.47. From this version, an error will be returned rather than exhausting the stack. (CVE-2026-25727)
Affected Packages:
thunderbird
Note:
This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update thunderbird or yum update --advisory ALAS2-2026-3177 to update your system.
aarch64:
thunderbird-140.7.1-1.amzn2.0.3.aarch64
src:
thunderbird-140.7.1-1.amzn2.0.3.src
x86_64:
thunderbird-140.7.1-1.amzn2.0.3.x86_64