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)
Linux ≫ Linux Kernel Version >= 2.6.35 < 4.19.268
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.226
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.157
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.81
Linux ≫ Linux Kernel Version >= 5.16 < 6.0.10
Linux ≫ Linux Kernel Version2.6.34 Update-
Linux ≫ Linux Kernel Version2.6.34 Updaterc2
Linux ≫ Linux Kernel Version2.6.34 Updaterc3
Linux ≫ Linux Kernel Version2.6.34 Updaterc4
Linux ≫ Linux Kernel Version2.6.34 Updaterc5
Linux ≫ Linux Kernel Version2.6.34 Updaterc6
Linux ≫ Linux Kernel Version2.6.34 Updaterc7
Linux ≫ Linux Kernel Version6.1 Updaterc1
Linux ≫ Linux Kernel Version6.1 Updaterc2
Linux ≫ Linux Kernel Version6.1 Updaterc3
Linux ≫ Linux Kernel Version6.1 Updaterc4
Linux ≫ Linux Kernel Version6.1 Updaterc5
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.05% 0.158
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.