Advisories ยป MGASA-2024-0128

Updated golang packages fix security vulnerability

Publication date: 13 Apr 2024
Modification date: 13 Apr 2024
Type: security
Affected Mageia releases : 9
CVE: CVE-2023-45288

Description

CVE-2023-45288: An attacker may cause an HTTP/2 endpoint to read
arbitrary amounts of header data by sending an excessive number of
CONTINUATION frames. Maintaining HPACK state requires parsing and
processing all HEADERS and CONTINUATION frames on a connection. When a
request's headers exceed MaxHeaderBytes, no memory is allocated to store
the excess headers, but they are still parsed. This permits an attacker
to cause an HTTP/2 endpoint to read arbitrary amounts of header data,
all associated with a request which is going to be rejected. These
headers can include Huffman-encoded data which is significantly more
expensive for the receiver to decode than for an attacker to send. The
fix sets a limit on the amount of excess header frames we will process
before closing a connection.

References

SRPMS

9/core