CVE-2018-12911 — CRITICAL (9.8)

Vulnerability Description

WebKitGTK+ 2.20.3 has an off-by-one error, with a resultant out-of-bounds write, in the get_simple_globs functions in ThirdParty/xdgmime/src/xdgmimecache.c and ThirdParty/xdgmime/src/xdgmimeglob.c.

CVSS Score

9.8

CRITICAL

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Webkitgtk	Webkitgtk\+	2.20.3
Canonical	Ubuntu Linux	16.04

Related Weaknesses (CWE)

CWE-787

References

https://trac.webkit.org/changeset/233404/webkitPatchVendor Advisory
https://usn.ubuntu.com/3743-1/Third Party Advisory
https://trac.webkit.org/changeset/233404/webkitPatchVendor Advisory
https://usn.ubuntu.com/3743-1/Third Party Advisory

FAQ

What is CVE-2018-12911?

CVE-2018-12911 is a vulnerability with a CVSS score of 9.8 (CRITICAL). WebKitGTK+ 2.20.3 has an off-by-one error, with a resultant out-of-bounds write, in the get_simple_globs functions in ThirdParty/xdgmime/src/xdgmimecache.c and ThirdParty/xdgmime/src/xdgmimeglob.c.

How severe is CVE-2018-12911?

CVE-2018-12911 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2018-12911?

Check the references section above for vendor advisories and patch information. Affected products include: Webkitgtk Webkitgtk\+, Canonical Ubuntu Linux.