Vulnerability CVE-2017-5618
Published: 2017-03-20

Description:
GNU screen before 4.5.1 allows local users to modify arbitrary files and consequently gain root privileges by leveraging improper checking of logfile permissions.

Type:

CWE-269

 (Improper Privilege Management)

CVSS2 => (AV:L/AC:L/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.2/10
10/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
GNU -> Screen 

 References:
http://git.savannah.gnu.org/cgit/screen.git/patch/?id=1c6d2817926d30c9a7a97d99af7ac5de4a5845b8
http://git.savannah.gnu.org/cgit/screen.git/tree/src/ChangeLog?h=v.4.5.1
http://savannah.gnu.org/bugs/?50142
http://www.openwall.com/lists/oss-security/2017/01/29/3
http://www.securityfocus.com/bid/95873
https://lists.gnu.org/archive/html/screen-devel/2017-01/msg00025.html
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