lighttpd - several

Several vulnerabilities have been discovered in the lighttpd web server.

It was discovered that SSL connections with client certificates
stopped working after the DSA-2795-1 update of lighttpd. An upstream
patch has now been applied that provides an appropriate identifier for
client certificate verification.

• CVE-2013-4508
  It was discovered that lighttpd uses weak ssl ciphers when SNI (Server
  Name Indication) is enabled. This issue was solved by ensuring that
  stronger ssl ciphers are used when SNI is selected.
• CVE-2013-4559
  The clang static analyzer was used to discover privilege escalation
  issues due to missing checks around lighttpd’s setuid, setgid, and
  setgroups calls. Those are now appropriately checked.
• CVE-2013-4560
  The clang static analyzer was used to discover a use-after-free issue
  when the FAM stat cache engine is enabled, which is now fixed.

For the oldstable distribution (squeeze), these problems have been fixed in
version 1.4.28-2+squeeze1.5.

For the stable distribution (wheezy), these problems have been fixed in
version 1.4.31-4+deb7u2.

For the testing distribution (jessie), these problems will be fixed soon.

For the unstable distribution (sid), these problems have been fixed in
version lighttpd_1.4.33-1+nmu1.

For the testing (jessie) and unstable (sid) distributions, the regression
problem will be fixed soon.

We recommend that you upgrade your lighttpd packages.