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Debian Security Advisory DSA-3896-1                   security@debian.org
https://www.debian.org/security/                     Salvatore Bonaccorso
June 22, 2017                         https://www.debian.org/security/faq
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Package        : apache2
CVE ID         : CVE-2017-3167 CVE-2017-3169 CVE-2017-7659 CVE-2017-7668
                 CVE-2017-7679

Several vulnerabilities have been found in the Apache HTTPD server.

CVE-2017-3167

    Emmanuel Dreyfus reported that the use of ap_get_basic_auth_pw() by
    third-party modules outside of the authentication phase may lead to
    authentication requirements being bypassed.

CVE-2017-3169

    Vasileios Panopoulos of AdNovum Informatik AG discovered that
    mod_ssl may dereference a NULL pointer when third-party modules call
    ap_hook_process_connection() during an HTTP request to an HTTPS port
    leading to a denial of service.

CVE-2017-7659

    Robert Swiecki reported that a specially crafted HTTP/2 request
    could cause mod_http2 to dereference a NULL pointer and crash the
    server process.

CVE-2017-7668

    Javier Jimenez reported that the HTTP strict parsing contains a
    flaw leading to a buffer overread in ap_find_token(). A remote
    attacker can take advantage of this flaw by carefully crafting a
    sequence of request headers to cause a segmentation fault, or to
    force ap_find_token() to return an incorrect value.

CVE-2017-7679

    ChenQin and Hanno Boeck reported that mod_mime can read one byte
    past the end of a buffer when sending a malicious Content-Type
    response header.

For the oldstable distribution (jessie), these problems have been fixed
in version 2.4.10-10+deb8u9. The oldstable distribution (jessie) is not
affected by CVE-2017-7659.

For the stable distribution (stretch), these problems have been fixed in
version 2.4.25-3+deb9u1.

For the unstable distribution (sid), these problems have been fixed in
version 2.4.25-4.

We recommend that you upgrade your apache2 packages.

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: debian-security-announce@lists.debian.org