Vulnerability Description
A use-after-free flaw was found in the Linux kernel’s mm/mremap memory address space accounting source code. This issue occurs due to a race condition between rmap walk and mremap, allowing a local user to crash the system or potentially escalate their privileges on the system.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 5.14 |
| Redhat | Enterprise Linux | 8.0 |
| Redhat | Enterprise Linux Eus | 8.8 |
| Redhat | Enterprise Linux For Power Little Endian | 8.0_ppc64le |
| Redhat | Enterprise Linux For Power Little Endian Eus | 8.8_ppc64le |
| Redhat | Enterprise Linux Server Tus | 8.8 |
Related Weaknesses (CWE)
References
- https://access.redhat.com/errata/RHSA-2023:1659Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2023-1476Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2176035Issue Tracking
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=97Mailing ListPatch
- https://access.redhat.com/errata/RHSA-2023:1659Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2023-1476Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2176035Issue Tracking
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=97Mailing ListPatch
FAQ
What is CVE-2023-1476?
CVE-2023-1476 is a vulnerability with a CVSS score of 7.0 (HIGH). A use-after-free flaw was found in the Linux kernel’s mm/mremap memory address space accounting source code. This issue occurs due to a race condition between rmap walk and mremap, allowing a local us...
How severe is CVE-2023-1476?
CVE-2023-1476 has been rated HIGH with a CVSS base score of 7.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-1476?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Redhat Enterprise Linux, Redhat Enterprise Linux Eus, Redhat Enterprise Linux For Power Little Endian, Redhat Enterprise Linux For Power Little Endian Eus.