4.7

CVE-2023-2612

shiftfs lock unbalance in Ubuntu-specific kernels

Jean-Baptiste Cayrou discovered that the shiftfs file system in the Ubuntu Linux kernel contained a race condition when handling inode locking in some situations. A local attacker could use this to cause a denial of service (kernel deadlock).
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Canonical ≫ Ubuntu Linux Version20.04 SwEditionlts
Canonical ≫ Ubuntu Linux Version22.04 SwEditionlts
Canonical ≫ Ubuntu Linux Version22.10 SwEdition-
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.28% 0.199
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 4.7 1 3.6
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
security@ubuntu.com 4.4 0.8 3.6
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
CWE-667 Improper Locking

The product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.

http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html
https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/kinetic/commit/?id=02b47547824b1cd0d55c6744f91886f04de8947e
Patch
Mailing List
https://ubuntu.com/security/CVE-2023-2612
Vendor Advisory
https://ubuntu.com/security/notices/USN-6122-1
Vendor Advisory
https://ubuntu.com/security/notices/USN-6123-1
Vendor Advisory
https://ubuntu.com/security/notices/USN-6124-1
Vendor Advisory
https://ubuntu.com/security/notices/USN-6127-1
Vendor Advisory