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Low ALAS2-2026-3177 1 CVE

Low: thunderbird security update (Amazon Linux 2)

Published Mar 2, 2026 · Updated Mar 5, 2026

Summary

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2026-25727: 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.

Fixed packages 1

ReleasePackageFixed in
Amazon Linux · 2 thunderbird 0:140.7.1-1.amzn2.0.3

Vulnerabilities 1

  • Medium 6.8

    time affected by a stack exhaustion denial of service attack

    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 deprec…

References

  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-25727.html