ALAS-2024-2524

Related Vulnerabilities: CVE-2024-27316  

HTTP/2 incoming headers exceeding the limit are temporarily buffered in nghttp2 in order to generate an informative HTTP 413 response. If a client does not stop sending headers, this leads to memory exhaustion. (CVE-2024-27316)

ALAS-2024-2524


Amazon Linux 2 Security Advisory: ALAS-2024-2524
Advisory Release Date: 2024-04-24 22:15 Pacific
Advisory Updated Date: 2024-04-24 22:15 Pacific
Severity: Important

Issue Overview:

HTTP/2 incoming headers exceeding the limit are temporarily buffered in nghttp2 in order to generate an informative HTTP 413 response. If a client does not stop sending headers, this leads to memory exhaustion. (CVE-2024-27316)


Affected Packages:

mod_http2


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 mod_http2 to update your system.

New Packages:
aarch64:
    mod_http2-1.15.19-1.amzn2.0.2.aarch64
    mod_http2-debuginfo-1.15.19-1.amzn2.0.2.aarch64

i686:
    mod_http2-1.15.19-1.amzn2.0.2.i686
    mod_http2-debuginfo-1.15.19-1.amzn2.0.2.i686

src:
    mod_http2-1.15.19-1.amzn2.0.2.src

x86_64:
    mod_http2-1.15.19-1.amzn2.0.2.x86_64
    mod_http2-debuginfo-1.15.19-1.amzn2.0.2.x86_64