chromium-browser - security update

Several vulnerabilities were discovered in the chromium web browser:

• CVE-2015-1243
  Saif El-Sherei discovered a use-after-free issue.
• CVE-2015-1250
  The chrome 42 team found and fixed multiple issues during internal
  auditing.

For the stable distribution (jessie), these problems have been fixed in
version 42.0.2311.135-1~deb8u1.

For the testing distribution (stretch), this problem will be fixed soon.

For the unstable distribution (sid), these problems have been fixed in
version 42.0.2311.135-1.

We recommend that you upgrade your chromium-browser packages.