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CVE-2023-3390

HIGHCVSS 7.8/10EPSS 0.90%

Last modified

CVE-2023-3390 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. A use-after-free vulnerability was found in the Linux kernel's netfilter subsystem in net/netfilter/nf_tables_api.c. Mishandled error handling with NFT_MSG_NEWRULE makes it possible to use a dangling pointer in the same transaction causing a use-after-free vulnerability. This flaw allows a local attacker with user access to cause a privilege escalation issue. We recommend upgrading past commit 1240eb93f0616b21c675416516ff3d74798fdc97.. EPSS estimates a 0.90% chance of exploitation in the next 30 days.

Description

A use-after-free vulnerability was found in the Linux kernel's netfilter subsystem in net/netfilter/nf_tables_api.c. Mishandled error handling with NFT_MSG_NEWRULE makes it possible to use a dangling pointer in the same transaction causing a use-after-free vulnerability. This flaw allows a local attacker with user access to cause a privilege escalation issue. We recommend upgrading past commit 1240eb93f0616b21c675416516ff3d74798fdc97.

Metrics

CVSS 3.1
7.8/10

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

EPSS Probability
0.90%

55.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
LinuxLinux Kernel>= 3.16, < 4.14.322
LinuxLinux Kernel>= 4.15, < 4.19.291
LinuxLinux Kernel>= 4.20, < 5.4.251
LinuxLinux Kernel>= 5.5, < 5.10.188
LinuxLinux Kernel>= 5.11, < 5.15.118
LinuxLinux Kernel>= 5.16, < 6.1.35
LinuxLinux Kernel>= 6.2, < 6.3.9
NetappH300sAll versions
NetappH410cAll versions
NetappH410sAll versions
NetappH500sAll versions
NetappH700sAll versions

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2023-3390?
A use-after-free vulnerability was found in the Linux kernel's netfilter subsystem in net/netfilter/nf_tables_api.c. Mishandled error handling with NFT_MSG_NEWRULE makes it possible to use a dangling pointer in the same transaction causing a use-after-free vulnerability. This flaw allows a local attacker with user access to cause a privilege escalation issue. We recommend upgrading past commit 1240eb93f0616b21c675416516ff3d74798fdc97.
How severe is CVE-2023-3390?
CVE-2023-3390 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.90% probability of exploitation in the next 30 days.
How do I fix CVE-2023-3390?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-3390?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST