High severity · published Feb 4, 2019
CVE-2019-3461
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
7.0
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 17% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TM
tmpreaper · Debian GNU/Linux
1.6.13+nmu1 · source: vendor, NVD
DL
Debian Linux · Debian
8.0; 9.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-3461
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-3461
Mailing List
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=918956
Vendor Advisory
https://lists.debian.org/debian-lts-announce/2019/01/msg00017.html
Mailing List
https://lists.debian.org/debian-security-announce/2019/msg00003.html
usn.ubuntu.com
https://usn.ubuntu.com/4077-1/