7.8

CVE-2024-0582

Kernel: io_uring: page use-after-free vulnerability via buffer ring mmap

A memory leak flaw was found in the Linux kernel’s io_uring functionality in how a user registers a buffer ring with IORING_REGISTER_PBUF_RING, mmap() it, and then frees it. This flaw allows a local user to crash or potentially escalate their privileges on the system.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 6.4 < 6.6.5
Linux ≫ Linux Kernel Version6.7 Updaterc1
Linux ≫ Linux Kernel Version6.7 Updaterc2
Linux ≫ Linux Kernel Version6.7 Updaterc3
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 12.84% 0.958
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
RedHat 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

http://www.openwall.com/lists/oss-security/2024/04/24/3
https://access.redhat.com/security/cve/CVE-2024-0582
Third Party Advisory
https://bugs.chromium.org/p/project-zero/issues/detail?id=2504
Mailing List
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2254050
Patch
Third Party Advisory
Issue Tracking
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c392cbecd8eca4c53f2bf508731257d9d0a21c2d
Patch
Mailing List