CVE-2022-31214
What it is
A Privilege Context Switching issue was discovered in join.c in Firejail 0.9.68. By crafting a bogus Firejail container that is accepted by the Firejail setuid-root program as a join target, a local attacker can enter an environment in which the Linux user namespace is still the initial user namespace, the NO_NEW_PRIVS prctl is not activated, and the entered mount namespace is under the attacker's control. In this way, the filesystem layout can be adjusted to gain root privileges through execution of available setuid-root binaries such as su or sudo.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.4% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.4% in the next 30 days (EPSS).
- Severity: 7.8 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.4% · EPSS, next 30 days
- Weakness
- CWE-269 · Improper privilege management
- Record status
- Modified
Affected
- Firejail Project Firejail 0.9.68
- Fedoraproject Fedora 35
- Fedoraproject Fedora 36
- Fedoraproject Fedora 37
- Debian Linux 9.0
- Debian Linux 10.0
Attack profile CVSS 3.1 · 7.8
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2022-31214.md and follow it. Check whether this project is affected by CVE-2022-31214. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://www.openwall.com/lists/oss-security/2022/06/08/10
- https://www.openwall.com/lists/oss-security/2022/06/08/10
References
- https://firejail.wordpress.com/download-2/release-notes/
- https://lists.debian.org/debian-lts-announce/2022/06/msg00023.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6RZOTZ36RUSL6DOVHITY25ZYKWTG5HN3/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KUZZ5M6LIBYRKTKGROXC47TDC3FRTGJF/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SIBEBE3KFINMGJATBQQS7D2VQQ62ZVMF/
- https://security.gentoo.org/glsa/202305-19
- https://www.debian.org/security/2022/dsa-5167
- https://www.openwall.com/lists/oss-security/2022/06/08/10
- https://firejail.wordpress.com/download-2/release-notes/
- https://lists.debian.org/debian-lts-announce/2022/06/msg00023.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6RZOTZ36RUSL6DOVHITY25ZYKWTG5HN3/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KUZZ5M6LIBYRKTKGROXC47TDC3FRTGJF/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SIBEBE3KFINMGJATBQQS7D2VQQ62ZVMF/
- https://security.gentoo.org/glsa/202305-19
- https://www.debian.org/security/2022/dsa-5167
- https://www.openwall.com/lists/oss-security/2022/06/08/10