CVE-2017-7782

Description

An error in the "WindowsDllDetourPatcher" where a RWX ("Read/Write/Execute") 4k block is allocated but never protected, violating DEP protections. Note: This attack only affects Windows operating systems. Other operating systems are not affected. This vulnerability affects Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox < 55.

Category

5.3
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.51%
Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org
Affected: Mozilla Thunderbird
Affected: Mozilla Firefox ESR
Affected: Mozilla Firefox
Published at:
Updated at:

References

Link Tags
https://www.mozilla.org/security/advisories/mfsa2017-19/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2017-20/ vendor advisory
http://www.securityfocus.com/bid/100243 vdb entry third party advisory
https://www.mozilla.org/security/advisories/mfsa2017-18/ vendor advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1344034 issue tracking patch
http://www.securitytracker.com/id/1039124 vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2017-7782?
CVE-2017-7782 has been scored as a medium severity vulnerability.
How to fix CVE-2017-7782?
To fix CVE-2017-7782, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-7782 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-7782 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-7782?
CVE-2017-7782 affects Mozilla Thunderbird, Mozilla Firefox ESR, Mozilla Firefox.
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