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CVE-2022-50074

15
FAUCET Score

CVE-2022-50074 is a memory leak vulnerability in the AppArmor module of the Linux kernel. Specifically, it occurs when the copy_from_user function fails, leading to an independent allocation of the management structure and data blob, resulting in a memory leak. This vulnerability has a CVSS score of 5.5 (Medium), indicating a local attack vector with low attack complexity, requiring low privileges, and resulting in high availability impact (denial of service). There is no impact on confidentiality or integrity. Currently, there is no evidence of active exploitation, and no public exploit code (Metasploit, Nuclei, ExploitDB) is available. Community discussion and media coverage for this CVE are minimal, suggesting low public awareness.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.17, < 4.19.256CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.20, < 5.4.211CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.5, < 5.10.138CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.11, < 5.15.63CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.16, < 5.19.4CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.16%
Probability of exploitation in next 30 days
EPSS Percentile
5.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0016 is in the 33rd percentile among its peer group of 15,940 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2022-50074

kernel: apparmor: Fix memleak in aa_simple_write_to_buffer()

Jun 18, 2025

References

git.kernel.org / stable/c/417ea9fe972d2654a268ad66e89c8fcae67017c3
Patch
git.kernel.org / stable/c/6500eb3a48ac221051b1791818a1ac74744ef617
Patch
git.kernel.org / stable/c/6583edbf459de2e06b9759f264c0ae27e452b97a
Patch
git.kernel.org / stable/c/7db182a2ebeefded86fea542fcc5d6a68bb77f58
Patch
git.kernel.org / stable/c/8aab4295582eb397a125d2788b829fa62b88dbf7
Patch
git.kernel.org / stable/c/bf7ebebce2c25071c719fd8a2f1307e0c243c2d7
Patch