Permissions, Privileges, and Access Controls in Fedora - CVE-2015-0856
Published: November 24, 2015 / Updated: August 9, 2020
Vulnerability identifier: #VU40592
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2015-0856
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Fedoraproject
Affected software:
Fedora
Fedora
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
daemon/Greeter.cpp in sddm before 0.13.0 does not properly disable the KDE crash handler, which allows local users to gain privileges by crashing a greeter when using certain themes, as demonstrated by the plasma-workspace breeze theme.
How to mitigate CVE-2015-0856
Install update from vendor's website.
Sources
- http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171443.html
- http://www.openwall.com/lists/oss-security/2015/10/14/2
- http://www.securityfocus.com/bid/77099
- https://github.com/sddm/sddm/commit/4cfed6b0a625593fb43876f04badc4dd99799d86
- https://github.com/sddm/sddm/wiki/0.13.0-Release-Announcement