Firefox Security Issues Mitigated
Friday, April 29, 2016 @ 03:04 PM gHale
Mozilla patched 14 vulnerabilities with the release of its Firefox 46 browser.
Firefox 46 addresses four critical issues, described as memory safety bugs affecting the browser engine. The flaws, discovered by Mozilla developers, can lead to crashes and, in some circumstances, to arbitrary code execution.
Of the five high severity issues resolved in the latest Firefox release, one was reported to Mozilla by the Communications-Electronics Security Group (CESG), the information security arm of the UK’s Government Communications Headquarters (GCHQ).
If certain conditions are met, it could be possible to exploit the flaw for arbitrary code execution, but Mozilla said an attacker would need to get the victim to keep a malicious page open for an extended period of time until the overflow ends up triggered.
Another high severity vulnerability, one an attacker could exploit via specially crafted web content to trigger a potentially exploitable crash, has been reported by researcher Sascha Just. The weakness, tracked as CVE-2016-2814, ends up caused by a buffer overflow in the libstagefright library.
Another issue that only affects the Android version of Firefox came from Ken Okuyama. He found a moderate severity bug that allows a malicious application to read data, including browser history and locally saved passwords. Only Android versions prior to 5.0 suffer from the issue.
Researcher Loober Yang has been credited for identifying two high severity flaws related to Service Workers.