Improper Privilege Management Affecting firejail package, versions <0.9.44.6-1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-DEBIAN10-FIREJAIL-319240
- published9 Feb 2017
- disclosed9 Feb 2017
Introduced: 9 Feb 2017
CVE-2017-5940 (opens in a new tab)How to fix?
Upgrade Debian:10 firejail to version 0.9.44.6-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream firejail package and not the firejail package as distributed by Debian.
See How to fix? for Debian:10 relevant fixed versions and status.
Firejail before 0.9.44.6 and 0.9.38.x LTS before 0.9.38.10 LTS does not comprehensively address dotfile cases during its attempt to prevent accessing user files with an euid of zero, which allows local users to conduct sandbox-escape attacks via vectors involving a symlink and the --private option. NOTE: this vulnerability exists because of an incomplete fix for CVE-2017-5180.
References
- https://security-tracker.debian.org/tracker/CVE-2017-5940
- https://security.gentoo.org/glsa/201702-03
- https://github.com/netblue30/firejail/commit/38d418505e9ee2d326557e5639e8da49c298858f
- https://github.com/netblue30/firejail/commit/903fd8a0789ca3cc3c21d84cd0282481515592ef
- https://github.com/netblue30/firejail/commit/b8a4ff9775318ca5e679183884a6a63f3da8f863
- https://firejail.wordpress.com/download-2/release-notes/
- http://www.openwall.com/lists/oss-security/2017/01/31/16
- http://www.securityfocus.com/bid/96221