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Debian: Security Advisory for apache2 (DSA-4757-1)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
The remote host is missing an update for the 'apache2' package(s) announced via the DSA-4757-1 advisory.
Insight
Insight
Several vulnerabilities have been found in the Apache HTTPD server. CVE-2020-1927 Fabrice Perez reported that certain mod_rewrite configurations are prone to an open redirect. CVE-2020-1934 Chamal De Silva discovered that the mod_proxy_ftp module uses uninitialized memory when proxying to a malicious FTP backend. CVE-2020-9490 Felix Wilhelm discovered that a specially crafted value for the 'Cache-Digest' header in a HTTP/2 request could cause a crash when the server actually tries to HTTP/2 PUSH a resource afterwards. CVE-2020-11984 Felix Wilhelm reported a buffer overflow flaw in the mod_proxy_uwsgi module which could result in information disclosure or potentially remote code execution. CVE-2020-11993 Felix Wilhelm reported that when trace/debug was enabled for the HTTP/2 module certain traffic edge patterns can cause logging statements on the wrong connection, causing concurrent use of memory pools.
Affected Software
Affected Software
'apache2' package(s) on Debian Linux.
Detection Method
Detection Method
Checks if a vulnerable package version is present on the target host.
Solution
Solution
For the stable distribution (buster), these problems have been fixed in version 2.4.38-3+deb10u4. We recommend that you upgrade your apache2 packages.