vulnerability

Oracle Linux: CVE-2019-10097: ELSA-2020-4751: httpd:2.4 security, bug fix, and enhancement update (MODERATE)

Severity
6
CVSS
(AV:N/AC:M/Au:S/C:P/I:P/A:P)
Published
Aug 14, 2019
Added
Nov 12, 2020
Modified
Dec 3, 2025

Description

In Apache HTTP Server 2.4.32-2.4.39, when mod_remoteip was configured to use a trusted intermediary proxy server using the "PROXY" protocol, a specially crafted PROXY header could trigger a stack buffer overflow or NULL pointer deference. This vulnerability could only be triggered by a trusted proxy and not by untrusted HTTP clients.
A vulnerability was discovered in Apache httpd, in mod_remoteip. A trusted proxy using the "PROXY" protocol could send specially crafted headers that can cause httpd to experience a stack buffer overflow or NULL pointer dereference, leading to a crash or other potential consequences.
This issue could only be exploited by configured trusted intermediate proxy servers. HTTP clients such as browsers could not exploit the vulnerability.

Solutions

oracle-linux-upgrade-httpdoracle-linux-upgrade-httpd-develoracle-linux-upgrade-httpd-filesystemoracle-linux-upgrade-httpd-manualoracle-linux-upgrade-httpd-toolsoracle-linux-upgrade-mod-http2oracle-linux-upgrade-mod-ldaporacle-linux-upgrade-mod-mdoracle-linux-upgrade-mod-proxy-htmloracle-linux-upgrade-mod-sessionoracle-linux-upgrade-mod-ssl
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