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Mozilla Firefox Security Advisory (MFSA2015-65) - Linux

Information

Severity

Severity

Critical

Family

Family

General

CVSSv2 Base

CVSSv2 Base

10.0

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Solution Type

Solution Type

Vendor Patch

Created

Created

2 years ago

Modified

Modified

2 years ago

Summary

This host is missing a security update for Mozilla Firefox.

Insight

Insight

Use-after-free in workers while using XMLHttpRequest Security researcher Looben Yang used the Address Sanitizer tool to discover two related use-after-free vulnerabilities that occur when using XMLHttpRequest in concert with either shared or dedicated workers. These errors occur when the XMLHttpRequest object is attached to a worker but that object is incorrectly deleted while still in use. This results in exploitable crashes.

Affected Software

Affected Software

Firefox version(s) below 39.

Detection Method

Detection Method

Checks if a vulnerable package version is present on the target host.

Solution

Solution

The vendor has released an update. Please see the reference(s) for more information.

Common Vulnerabilities and Exposures (CVE)