VulnerabilityModified
CVE-2023-42753
An array indexing vulnerability was found in the netfilter subsystem of the Linux kernel.
HIGH 7.8EPSS 0.51%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.51%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An array indexing vulnerability was found in the netfilter subsystem of the Linux kernel. A missing macro could lead to a miscalculation of the `h->nets` array offset, providing attackers with the primitive to arbitrarily increment/decrement a memory buffer out-of-bound. This issue may allow a local user to crash the system or potentially escalate their privileges on the system.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.51% probability · 42th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- linux/linux kernel · redhat/enterprise linux · debian/debian linux
- Source
- secalert@redhat.com
References
- https://access.redhat.com/errata/RHSA-2023:7370Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:7379Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:7382Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:7389Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:7411Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:7418Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:7539Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:7558Third Party Advisory
- https://access.redhat.com/errata/RHSA-2024:0089Third Party Advisory
- https://access.redhat.com/errata/RHSA-2024:0113Third Party Advisory
- https://access.redhat.com/errata/RHSA-2024:0134Third Party Advisory
- https://access.redhat.com/errata/RHSA-2024:0340Third Party Advisory
- https://access.redhat.com/errata/RHSA-2024:0346Third Party Advisory
- https://access.redhat.com/errata/RHSA-2024:0347Third Party Advisory
- https://access.redhat.com/errata/RHSA-2024:0371Third Party Advisory
- https://access.redhat.com/errata/RHSA-2024:0376Third Party Advisory
- https://access.redhat.com/errata/RHSA-2024:0378Third Party Advisory
- https://access.redhat.com/errata/RHSA-2024:0402Third Party Advisory
- https://access.redhat.com/errata/RHSA-2024:0403Third Party Advisory
- https://access.redhat.com/errata/RHSA-2024:0412Third Party Advisory
- https://access.redhat.com/errata/RHSA-2024:0461Third Party Advisory
- https://access.redhat.com/errata/RHSA-2024:0562Third Party Advisory
- https://access.redhat.com/errata/RHSA-2024:0563Third Party Advisory
- https://access.redhat.com/errata/RHSA-2024:0593Third Party Advisory
- https://access.redhat.com/errata/RHSA-2024:0999Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2023-42753Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2239843Issue Tracking
- https://seclists.org/oss-sec/2023/q3/216Exploit, Mailing List, Third Party Advisory
- http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html
- https://access.redhat.com/errata/RHSA-2023:7370Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.