Vulnerability CVE-2019-3461


Published: 2019-02-04

Description:
Debian tmpreaper version 1.6.13+nmu1 has a race condition when doing a (bind) mount via rename() which could result in local privilege escalation. Mounting via rename() could potentially lead to a file being placed elsewhereon the filesystem hierarchy (e.g. /etc/cron.d/) if the directory being cleaned up was on the same physical filesystem. Fixed versions include 1.6.13+nmu1+deb9u1 and 1.6.14.

Type:

CWE-362

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.4/10
6.4/10
3.4/10
Exploit range
Attack complexity
Authentication
Local
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Debian -> Tmpreaper 
Debian -> Debian linux 

 References:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=918956
https://lists.debian.org/debian-lts-announce/2019/01/msg00017.html
https://lists.debian.org/debian-security-announce/2019/msg00003.html
https://usn.ubuntu.com/4077-1/

Copyright 2021, cxsecurity.com

 

Back to Top