CVE-2019-3461

Severity: high (CVSS 7.0 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-02-04 · updated 2026-06-17
Weakness: CWE-362

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.

Affected products

Debian Linux: 8.0, 9.0
Debian Tmpreaper: 1.6.13+nmu1

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/
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/

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