Known exploited vulnerability
CVE-2022-0185
The short answer
CVE-2022-0185 affects n/a kernel and is rated high (CVSS 8.4). CISA added it to the Known Exploited Vulnerabilities catalog on 2024-08-21: attackers are using it, so patch it first. The vendor has linked a patch.
What it is
A heap-based buffer overflow flaw was found in the way the legacy_parse_param function in the Filesystem Context functionality of the Linux kernel verified the supplied parameters length. An unprivileged (in case of unprivileged user namespaces enabled, otherwise needs namespaced CAP_SYS_ADMIN privilege) local user able to open a filesystem that does not support the Filesystem Context API (and thus fallbacks to legacy handling) could use this flaw to escalate their privileges on the system.
Severity
8.4 high
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploited (CISA KEV)
Yes, since Aug 21, 2024
Federal due date Sep 11, 2024
EPSS, next 30 days
25%
Higher than 98% of scored CVEs
How it can be exploited
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
What CISA says to do
Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.
Affected products
kernel, linux_kernel. NVD's record lists the exact affected versions.
References
- git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=722d94847de2 Mailing ListPatch
- github.com/Crusaders-of-Rust/CVE-2022-0185 ExploitThird Party Advisory
- security.netapp.com/advisory/ntap-20220225-0003/ Third Party Advisory
- www.openwall.com/lists/oss-security/2022/01/18/7 Mailing ListPatchThird Party Advisory
- www.willsroot.io/2022/01/cve-2022-0185.html ExploitThird Party Advisory
- git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=722d94847de2 Mailing ListPatch
- github.com/Crusaders-of-Rust/CVE-2022-0185 ExploitThird Party Advisory
- security.netapp.com/advisory/ntap-20220225-0003/ Third Party Advisory
- www.openwall.com/lists/oss-security/2022/01/18/7 Mailing ListPatchThird Party Advisory
- www.willsroot.io/2022/01/cve-2022-0185.html ExploitThird Party Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-0185 US Government Resource
Questions
Is CVE-2022-0185 being exploited?
Yes. CISA added CVE-2022-0185 to its Known Exploited Vulnerabilities catalog on 2024-08-21, with a federal remediation due date of 2024-09-11.
How do I fix CVE-2022-0185?
CISA's required action: Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.
From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.
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