CVE-2021-33200

EPSS 0.38%
Veröffentlicht 27.05.2021 13:15:08
Zuletzt bearbeitet 21.11.2024 06:08:30
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kernel/bpf/verifier.c in the Linux kernel through 5.12.7 enforces incorrect limits for pointer arithmetic operations, aka CID-bb01a1bba579. This can be abused to perform out-of-bounds reads and writes in kernel memory, leading to local privilege escalation to root. In particular, there is a corner case where the off reg causes a masking direction change, which then results in an incorrect final aux->alu_limit.

Betroffene Produkte Warnungen 0 Metriken 3 CWE 1 Referenzen 10

NVD 15 VulnDex Vulnerability Enrichment 4

Daten sind bereitgestellt durch National Vulnerability Database (NVD)

Linux ≫ Linux Kernel Version >= 5.4.116 < 5.4.123

Linux ≫ Linux Kernel Version >= 5.10.33 < 5.10.41

Linux ≫ Linux Kernel Version >= 5.11.17 < 5.12.8

Fedoraproject ≫ Fedora Version 33

Fedoraproject ≫ Fedora Version 34

Netapp ≫ Cloud Backup Version -

Netapp ≫ Solidfire & Hci Management Node Version -

Netapp ≫ Solidfire Baseboard Management Controller Version -

Netapp ≫ H300s Firmware Version -

Netapp ≫ H300s Version -

Netapp ≫ H500s Firmware Version -

Netapp ≫ H500s Version -

Netapp ≫ H300e Firmware Version -

Netapp ≫ H300e Version -

Netapp ≫ H500e Firmware Version -

Netapp ≫ H500e Version -

Netapp ≫ H700e Firmware Version -

Netapp ≫ H700e Version -

Netapp ≫ H410s Firmware Version -

Netapp ≫ H410s Version -

Netapp ≫ H700s Firmware Version -

Netapp ≫ H700s Version -

VulnDex Vulnerability Enrichment

Diese Information steht angemeldeten Benutzern zur Verfügung.

Zu dieser CVE wurde keine Warnung gefunden.

EPSS Metriken
Typ	Quelle	Score	Percentile
EPSS	FIRST.org	0.38%	0.293

CVSS Metriken
Quelle	Base Score	Exploit Score	Impact Score	Vector String
NIST	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
NIST	7.2	3.9	10	AV:L/AC:L/Au:N/C:C/I:C/A:C

CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3d0220f6861d713213b015b582e9f21e5b28d2e0

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a7036191277f9fa68d92f2071ddc38c09b1e5ee5

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=bb01a1bba579b4b1c5566af24d95f1767859771e

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7LR3OKKPHIBGOMHN476CMLW2T7UG53QX/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JJCABL43FT3FKRX5DBPZG25FNKR6CEK4/

https://security.netapp.com/advisory/ntap-20210706-0004/

Third Party Advisory

https://www.openwall.com/lists/oss-security/2021/05/27/1

Patch

Third Party Advisory

Mailing List

https://nvd.nist.gov/vuln/detail/CVE-2021-33200

CVE Source (NVD)

https://cveawg.mitre.org/api/cve/CVE-2021-33200

CVE Source (JSON)

https://euvd.enisa.europa.eu/vulnerability/CVE-2021-33200

EUVD

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CVE-2021-33200