CVE-2022-50077
What it is
In the Linux kernel, the following vulnerability has been resolved: apparmor: fix reference count leak in aa_pivotroot() The aa_pivotroot() function has a reference counting bug in a specific path. When aa_replace_current_label() returns on success, the function forgets to decrement the reference count of “target”, which is increased earlier by build_pivotroot(), causing a reference leak. Fix it by decreasing the refcount of “target” in that path.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of service disruption.
- Exploit odds
- 0.2% 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: 0.2% in the next 30 days (EPSS).
- Severity: 5.5 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Record status
- Analyzed
Affected
- Linux Kernel < 4.14.291
- Linux Kernel < 4.19.256
- Linux Kernel < 5.4.211
- Linux Kernel < 5.10.138
- Linux Kernel < 5.15.63
- Linux Kernel < 5.19.4
- Linux Kernel 4.14
Attack profile CVSS 3.1 · 5.5
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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-2022-50077.md and follow it. Check whether this project is affected by CVE-2022-50077. 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://git.kernel.org/stable/c/11c3627ec6b56c1525013f336f41b79a983b4d46
- https://git.kernel.org/stable/c/2ceeb3296e9dde1d5772348046affcefdea605e2
- https://git.kernel.org/stable/c/3ca40ad7afae144169a43988ef1a3f16182faf0a
- https://git.kernel.org/stable/c/64103ea357734b82384c925cba4758fdb909be0c
- https://git.kernel.org/stable/c/d53194707d2a1851be027cd74266b96ceff799d3
- https://git.kernel.org/stable/c/ef6fb6f0d0d8440595b45a7e53c6162c737177f4
- https://git.kernel.org/stable/c/f4d5c7796571624e3f380b447ada52834270a287
References
- https://git.kernel.org/stable/c/11c3627ec6b56c1525013f336f41b79a983b4d46
- https://git.kernel.org/stable/c/2ceeb3296e9dde1d5772348046affcefdea605e2
- https://git.kernel.org/stable/c/3ca40ad7afae144169a43988ef1a3f16182faf0a
- https://git.kernel.org/stable/c/64103ea357734b82384c925cba4758fdb909be0c
- https://git.kernel.org/stable/c/d53194707d2a1851be027cd74266b96ceff799d3
- https://git.kernel.org/stable/c/ef6fb6f0d0d8440595b45a7e53c6162c737177f4
- https://git.kernel.org/stable/c/f4d5c7796571624e3f380b447ada52834270a287