VulnerabilityModified
CVE-2023-1476
A use-after-free flaw was found in the Linux kernel’s mm/mremap memory address space accounting source code.
HIGH 7.0EPSS 0.23%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.23%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 7.0 HIGHCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.23% probability · 14th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- 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 · redhat/enterprise linux server tus
- Source
- secalert@redhat.com
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=97113eb39fa7972722ff490b947d8af023e1f6a2Mailing List, Patch
- 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=97113eb39fa7972722ff490b947d8af023e1f6a2Mailing List, Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.