CVE-2019-3461: Race Condition
First published: Thu Jan 10 2019(Updated: )
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.
Credit: security@debian.org security@debian.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Debian tmpreaper | =1.6.13\+nmu1 | |
| Debian Debian Linux | =8.0 | |
| Debian Debian Linux | =9.0 | |
| debian/tmpreaper | 1.6.14+nmu2 1.6.17 1.6.17+nmu1 |
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Reference Links
- 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://security-tracker.debian.org/tracker/CVE-2019-3461
- https://launchpad.net/bugs/cve/CVE-2019-3461
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3461
- https://nvd.nist.gov/vuln/detail/CVE-2019-3461
- https://ubuntu.com/security/CVE-2019-3461
- collector/nvd-index
- agent/type
- collector/mitre-cve
- source/MITRE
- collector/debian-bugs
- source/Debian
- alias/CVE-2019-3461
- agent/severity
- agent/references
- agent/description
- agent/first-publish-date
- agent/weakness
- collector/security-tracker-debian
- agent/software-canonical-lookup
- collector/launchpad-cve
- source/Launchpad
- agent/author
- collector/nvd-api
- source/NVD
- agent/last-modified-date
- agent/softwarecombine
- agent/tags
- agent/event
- collector/usn-cve
- source/Ubuntu
- collector/nvd-cve
- vendor/debian
- canonical/debian tmpreaper
- version/debian tmpreaper/1.6.13\+nmu1
- canonical/debian debian linux
- version/debian debian linux/8.0
- version/debian debian linux/9.0
- package-manager/debian