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    Debian: DSA-4757-1: apache2 security update

    Date
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    Posted By
    Several vulnerabilities have been found in the Apache HTTPD server. CVE-2020-1927
    
    - -------------------------------------------------------------------------
    Debian Security Advisory DSA-4757-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    https://www.debian.org/security/                     Salvatore Bonaccorso
    August 31, 2020                       https://www.debian.org/security/faq
    - -------------------------------------------------------------------------
    
    Package        : apache2
    CVE ID         : CVE-2020-1927 CVE-2020-1934 CVE-2020-9490 CVE-2020-11984
                     CVE-2020-11993
    
    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.
    
    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.
    
    For the detailed security status of apache2 please refer to its security
    tracker page at:
    https://security-tracker.debian.org/tracker/apache2
    
    Further information about Debian Security Advisories, how to apply
    these updates to your system and frequently asked questions can be
    found at: https://www.debian.org/security/
    
    Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it.
    

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