[manjaro-security] [arch-security] [ASA-201709-15] apache: information disclosure
anthraxx at archlinux.org
Mon Sep 18 19:56:58 CEST 2017
Arch Linux Security Advisory ASA-201709-15
Date : 2017-09-18
CVE-ID : CVE-2017-9798
Package : apache
Type : information disclosure
Remote : Yes
Link : https://security.archlinux.org/AVG-404
The package apache before version 2.4.27-2 is vulnerable to information
Upgrade to 2.4.27-2.
# pacman -Syu "apache>=2.4.27-2"
The problem has been fixed upstream but no release is available yet.
An use after free vulnerability has been discovered in Apache HTTP
2.4.27 that causes a corrupted Allow header to be constructed in
response to HTTP OPTIONS requests. This can leak pieces of arbitrary
memory from the server process that may contain secrets. The memory
pieces change after multiple requests, so for a vulnerable host an
arbitrary number of memory chunks can be leaked.
The bug appears if a webmaster tries to use the "Limit" directive with
an invalid HTTP method.
A remote attacker is able to leak memory and potentially obtain
sensitive information from the server process.
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