7.8

CVE-2020-25221

get_gate_page in mm/gup.c in the Linux kernel 5.7.x and 5.8.x before 5.8.7 allows privilege escalation because of incorrect reference counting (caused by gate page mishandling) of the struct page that backs the vsyscall page. The result is a refcount underflow. This can be triggered by any 64-bit process that can use ptrace() or process_vm_readv(), aka CID-9fa2dd946743.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.7.0 < 5.8.7
Netapp ≫ Cloud Backup Version-
Netapp ≫ Hci Compute Node Version-
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.67% 0.47
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
nvd@nist.gov 7.2 3.9 10
AV:L/AC:L/Au:N/C:C/I:C/A:C
CWE-672 Operation on a Resource after Expiration or Release

The product uses, accesses, or otherwise operates on a resource after that resource has been expired, released, or revoked.

http://www.openwall.com/lists/oss-security/2020/09/10/4
Third Party Advisory
Mailing List
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.7
Vendor Advisory
Release Notes
https://git.kernel.org/linus/8891adc61dce2a8a41fc0c23262b681c3ec4b73a
Patch
Vendor Advisory
Issue Tracking
https://git.kernel.org/linus/9fa2dd946743ae6f30dc4830da19147bf100a7f2
Patch
Vendor Advisory
Issue Tracking
https://security.netapp.com/advisory/ntap-20201001-0003/
Third Party Advisory
https://www.openwall.com/lists/oss-security/2020/09/08/4
Patch
Third Party Advisory
Mailing List