7.1

CVE-2023-3567

Kernel: use after free in vcs_read in drivers/tty/vt/vc_screen.c due to race

A use-after-free flaw was found in vcs_read in drivers/tty/vt/vc_screen.c in vc_screen in the Linux Kernel. This issue may allow an attacker with local user access to cause a system crash or leak internal kernel information.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version < 6.2.0
Linux ≫ Linux Kernel Version 6.2.0 Update rc1
Linux ≫ Linux Kernel Version 6.2.0 Update rc2
Linux ≫ Linux Kernel Version 6.2.0 Update rc3
Linux ≫ Linux Kernel Version 6.2.0 Update rc4
Linux ≫ Linux Kernel Version 6.2.0 Update rc5
Linux ≫ Linux Kernel Version 6.2.0 Update rc6
Redhat ≫ Enterprise Linux Version 8.0
Redhat ≫ Enterprise Linux Version 9.0
Canonical ≫ Ubuntu Linux Version 14.04 SwEdition esm
Canonical ≫ Ubuntu Linux Version 16.04 SwEdition esm
Canonical ≫ Ubuntu Linux Version 18.04 SwEdition lts
Canonical ≫ Ubuntu Linux Version 20.04 SwEdition lts
Canonical ≫ Ubuntu Linux Version 22.04 SwEdition lts
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.42% 0.338
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 7.1 1.8 5.2
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
RedHat 7.1 1.8 5.2
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html
http://packetstormsecurity.com/files/175072/Kernel-Live-Patch-Security-Notice-LSN-0098-1.html
https://access.redhat.com/errata/RHSA-2024:0412
https://access.redhat.com/errata/RHSA-2024:0431
https://access.redhat.com/errata/RHSA-2024:0432
https://access.redhat.com/errata/RHSA-2024:0439
https://access.redhat.com/errata/RHSA-2024:0448
https://access.redhat.com/errata/RHSA-2024:0575
https://access.redhat.com/errata/RHSA-2024:2394
https://access.redhat.com/errata/RHSA-2024:2950
https://access.redhat.com/errata/RHSA-2024:3138
https://access.redhat.com/security/cve/CVE-2023-3567
Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2221463
Third Party Advisory
Issue Tracking
https://www.spinics.net/lists/stable-commits/msg285184.html
Patch
Mailing List