Security Information / 2017 / Security Information -- DSA-3896-1 apache2

Debian Security Advisory

DSA-3896-1 apache2 -- security update

Date Reported:

22 Jun 2017

Affected Packages:

apache2

Vulnerable:

Yes

Security database references:

In Mitre's CVE dictionary: CVE-2017-3167, CVE-2017-3169, CVE-2017-7659, CVE-2017-7668, CVE-2017-7679.

More information:

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.