7.8

CVE-2022-49770

ceph: avoid putting the realm twice when decoding snaps fails

In the Linux kernel, the following vulnerability has been resolved:

ceph: avoid putting the realm twice when decoding snaps fails

When decoding the snaps fails it maybe leaving the 'first_realm'
and 'realm' pointing to the same snaprealm memory. And then it'll
put it twice and could cause random use-after-free, BUG_ON, etc
issues.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
LinuxLinux Kernel Version >= 2.6.35 < 4.19.268
LinuxLinux Kernel Version >= 4.20 < 5.4.226
LinuxLinux Kernel Version >= 5.5 < 5.10.157
LinuxLinux Kernel Version >= 5.11 < 5.15.81
LinuxLinux Kernel Version >= 5.16 < 6.0.10
LinuxLinux Kernel Version2.6.34 Update-
LinuxLinux Kernel Version2.6.34 Updaterc2
LinuxLinux Kernel Version2.6.34 Updaterc3
LinuxLinux Kernel Version2.6.34 Updaterc4
LinuxLinux Kernel Version2.6.34 Updaterc5
LinuxLinux Kernel Version2.6.34 Updaterc6
LinuxLinux Kernel Version2.6.34 Updaterc7
LinuxLinux Kernel Version6.1 Updaterc1
LinuxLinux Kernel Version6.1 Updaterc2
LinuxLinux Kernel Version6.1 Updaterc3
LinuxLinux Kernel Version6.1 Updaterc4
LinuxLinux Kernel Version6.1 Updaterc5
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.19% 0.089
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://git.kernel.org/stable/c/274e4c79a3a2a24fba7cfe0e41113f1138785c37
Patch
https://git.kernel.org/stable/c/cb7495fe957526555782ce0723f79ce92a6db22e
Patch
https://git.kernel.org/stable/c/044bc6d3c2c0e9090b0841e7b723875756534b45
Patch
https://git.kernel.org/stable/c/2f6e2de3a5289004650118b61f138fe7c28e1905
Patch
https://git.kernel.org/stable/c/fd879c83e87735ab8f00ef7755752cf0cbae24b2
Patch
https://git.kernel.org/stable/c/51884d153f7ec85e18d607b2467820a90e0f4359
Patch