CVE-2016-5293 — MEDIUM (5.5)

Q: How severe is CVE-2016-5293?

CVE-2016-5293 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2016-5293?

Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox, Microsoft Windows, Debian Debian Linux.

Vulnerability Description

When the Mozilla Updater is run, if the Updater's log file in the working directory points to a hardlink, data can be appended to an arbitrary local file. This vulnerability requires local system access. Note: this issue only affects Windows operating systems. This vulnerability affects Firefox ESR < 45.5 and Firefox < 50.

CVSS Score

5.5

MEDIUM

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

HIGH

Availability

NONE

Affected Products

Vendor	Product	Versions
Mozilla	Firefox	< 45.5.0
Microsoft	Windows	-
Debian	Debian Linux	8.0

Related Weaknesses (CWE)

CWE-20

References

http://www.securityfocus.com/bid/94336Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1037298Third Party AdvisoryVDB Entry
https://bugzilla.mozilla.org/show_bug.cgi?id=1246945Issue Tracking
https://security.gentoo.org/glsa/201701-15Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2016-89/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2016-90/Vendor Advisory
http://www.securityfocus.com/bid/94336Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1037298Third Party AdvisoryVDB Entry
https://bugzilla.mozilla.org/show_bug.cgi?id=1246945Issue Tracking
https://security.gentoo.org/glsa/201701-15Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2016-89/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2016-90/Vendor Advisory

FAQ

What is CVE-2016-5293?

CVE-2016-5293 is a vulnerability with a CVSS score of 5.5 (MEDIUM). When the Mozilla Updater is run, if the Updater's log file in the working directory points to a hardlink, data can be appended to an arbitrary local file. This vulnerability requires local system acce...

How severe is CVE-2016-5293?

CVE-2016-5293 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2016-5293?

Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox, Microsoft Windows, Debian Debian Linux.