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Debian Security Advisory DSA 3896-1 (apache2 - security update)

Information

Severity

Severity

High

Family

Family

Debian Local Security Checks

CVSSv2 Base

CVSSv2 Base

7.5

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

Solution Type

Solution Type

Vendor Patch

Created

Created

5 years ago

Modified

Modified

1 year ago

Summary

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.

Affected Software

Affected Software

apache2 on Debian Linux

Detection Method

Detection Method

This check tests the installed software version using the apt package manager.

Solution

Solution

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.

Common Vulnerabilities and Exposures (CVE)