Vulnerability Monitor

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CVE-2017-5618

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.

Published

2017-03-20T16:59:02.077

Last Modified

2025-04-20T01:37:25.860

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 7.8 (HIGH)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:C/I:C/A:C

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

3.9

Impact Score

10.0

Weaknesses

Type: Primary
CWE-863

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	gnu	screen	≤ 4.5.0	Yes

References

http://git.savannah.gnu.org/cgit/screen.git/patch/?id=1c6d2817926d30c9a7a97d99af7ac5de4a5845b8 Patch, Third Party Advisory ([email protected])
http://git.savannah.gnu.org/cgit/screen.git/tree/src/ChangeLog?h=v.4.5.1 Release Notes, Third Party Advisory ([email protected])
http://savannah.gnu.org/bugs/?50142 Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2017/01/29/3 Exploit, Mailing List, Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/95873 Third Party Advisory, VDB Entry ([email protected])
https://lists.gnu.org/archive/html/screen-devel/2017-01/msg00025.html Exploit, Third Party Advisory ([email protected])
http://git.savannah.gnu.org/cgit/screen.git/patch/?id=1c6d2817926d30c9a7a97d99af7ac5de4a5845b8 Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://git.savannah.gnu.org/cgit/screen.git/tree/src/ChangeLog?h=v.4.5.1 Release Notes, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://savannah.gnu.org/bugs/?50142 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2017/01/29/3 Exploit, Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/95873 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://lists.gnu.org/archive/html/screen-devel/2017-01/msg00025.html Exploit, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)