Amazon Linux 2 Security Advisory: ALAS2NITRO-ENCLAVES-2025-064
Advisory Released Date: 2025-06-23
Advisory Updated Date: 2025-06-23
Severity:
Important
Issue Overview:
The net/http package accepted data in the chunked transfer encoding containing an invalid chunk-size line terminated by a bare LF. When used in conjunction with a server or proxy which incorrectly interprets a bare LF in a chunk extension as part of the extension, this could permit request smuggling. (CVE-2025-22871)
Affected Packages:
runc
Note:
This advisory is applicable to Amazon Linux 2 - Nitro-enclaves Extra. Visit this page to learn more about Amazon Linux 2 (AL2) Extras and this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update runc or yum update --advisory ALAS2NITRO-ENCLAVES-2025-064 to update your system.
New Packages:
aarch64:
runc-1.2.4-3.amzn2.aarch64
runc-debuginfo-1.2.4-3.amzn2.aarch64
src:
runc-1.2.4-3.amzn2.src
x86_64:
runc-1.2.4-3.amzn2.x86_64
runc-debuginfo-1.2.4-3.amzn2.x86_64