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[ GLSA 201203-22 ] nginx: Multiple vulnerabilities
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PostPosted: Wed Mar 28, 2012 1:26 pm    Post subject: [ GLSA 201203-22 ] nginx: Multiple vulnerabilities Reply with quote

Gentoo Linux Security Advisory

Title: nginx: Multiple vulnerabilities (GLSA 201203-22)
Severity: high
Exploitable: remote
Date: March 28, 2012
Bug(s): #293785, #293786, #293788, #389319, #408367
ID: 201203-22

Synopsis

Multiple vulnerabilities have been found in nginx, the worst of
which may allow execution of arbitrary code.


Background

nginx is a robust, small, and high performance HTTP and reverse proxy
server.


Affected Packages

Package: www-servers/nginx
Vulnerable: < 1.0.14
Unaffected: >= 1.0.14
Architectures: All supported architectures


Description

Multiple vulnerabilities have been found in nginx:
  • The TLS protocol does not properly handle session renegotiation
    requests (CVE-2009-3555).
  • The "ngx_http_process_request_headers()" function in ngx_http_parse.c
    could cause a NULL pointer dereference (CVE-2009-3896).
  • nginx does not properly sanitize user input for the the WebDAV COPY
    or MOVE methods (CVE-2009-3898).
  • The "ngx_resolver_copy()" function in ngx_resolver.c contains a
    boundary error which could cause a heap-based buffer overflow
    (CVE-2011-4315).
  • nginx does not properly parse HTTP header responses which could
    expose sensitive information (CVE-2012-1180).


Impact

A remote attacker could possibly execute arbitrary code with the
privileges of the nginx process, cause a Denial of Service condition,
create or overwrite arbitrary files, or obtain sensitive information.


Workaround

There is no known workaround at this time.

Resolution

All nginx users should upgrade to the latest version:
Code:
# emerge --sync
      # emerge --ask --oneshot --verbose ">=www-servers/nginx-1.0.14"
   


References

CVE-2009-3555

CVE-2009-3896

CVE-2009-3898

CVE-2011-4315

CVE-2012-1180
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