Note: Access to bug details and links may be kept restricted until a majority of users are updated with a fix. We will also retain restrictions if the bug exists in a third party library that other projects similarly depend on, but haven’t yet fixed.
This update includes 51 security fixes. Below, we highlight fixes that were contributed by external researchers. Please see the Chromium security page for more information.
[$7500][456516] High CVE-2015-1232: Out-of-bounds write in media. Credit to anonymous.
[$5000][448423] High CVE-2015-1213: Out-of-bounds write in skia filters. Credit to cloudfuzzer.
[$5000][445810] High CVE-2015-1214: Out-of-bounds write in skia filters. Credit to cloudfuzzer.
[$5000][445809] High CVE-2015-1215: Out-of-bounds write in skia filters. Credit to cloudfuzzer.
[$4000][454954] High CVE-2015-1216: Use-after-free in v8 bindings. Credit to anonymous.
[$3000][456192] High CVE-2015-1217: Type confusion in v8 bindings. Credit to anonymous.
[$3000][456059] High CVE-2015-1218: Use-after-free in dom. Credit to cloudfuzzer.
[$3000][446164] High CVE-2015-1219: Integer overflow in webgl. Credit to Chen Zhang (demi6od) of NSFOCUS Security Team.
[$3000][437651] High CVE-2015-1220: Use-after-free in gif decoder. Credit to Aki Helin of OUSPG.
[$2500][455368] High CVE-2015-1221: Use-after-free in web databases. Credit to Collin Payne.
[$2500][448082] High CVE-2015-1222: Use-after-free in service workers. Credit to Collin Payne.
[$2000][454231] High CVE-2015-1223: Use-after-free in dom. Credit to Maksymillian Motyl.
[449610] High CVE-2015-1230: Type confusion in v8. Credit to Skylined working with HP’s Zero Day Initiative.
[$2000][449958] Medium CVE-2015-1224: Out-of-bounds read in vpxdecoder. Credit to Aki Helin of OUSPG.
[$1000][446033] Medium CVE-2015-1225: Out-of-bounds read in pdfium. Credit to cloudfuzzer.
[$1000][456841] Medium CVE-2015-1226: Validation issue in debugger. Credit to Rob Wu.
[$1000][450389] Medium CVE-2015-1227: Uninitialized value in blink. Credit to Christoph Diehl.
[$1000][444707] Medium CVE-2015-1228: Uninitialized value in rendering. Credit to miaubiz.
[$500][431504] Medium CVE-2015-1229: Cookie injection via proxies. Credit to iliwoy.
We would also like to thank all security researchers that worked with us during the development cycle to prevent security bugs from ever reaching the stable channel. The total value of additional rewards and their recipients will be updated here when all reports have gone through the reward panel.
As usual, our ongoing internal security work was responsible for a wide range of fixes:
[463349] CVE-2015-1231: Various fixes from internal audits, fuzzing and other initiatives.
Multiple vulnerabilities in V8 fixed at the tip of the 4.1 branch (currently 4.1.0.21).
