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CVE-2019-20812

MEDIUM

5.5

Description

An issue was discovered in the Linux kernel before 5.4.7. The prb_calc_retire_blk_tmo() function in net/packet/af_packet.c can result in a denial of service (CPU consumption and soft lockup) in a certain failure case involving TPACKET_V3, aka CID-b43d1f9f7067.

CVE Details

CVSS v3.1 Score5.5

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack VectorLOCAL

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published6/3/2020

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

linux:linux_kernel

Weaknesses (CWE)

CWE-400

References

http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html(cve@mitre.org)

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.html(cve@mitre.org)

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.7(cve@mitre.org)

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b43d1f9f7067c6759b1051e8ecb84e82cef569fe(cve@mitre.org)

https://www.oracle.com/security-alerts/cpuApr2021.html(cve@mitre.org)

http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html(af854a3a-2127-422b-91ae-364da2661108)

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.html(af854a3a-2127-422b-91ae-364da2661108)

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.7(af854a3a-2127-422b-91ae-364da2661108)

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b43d1f9f7067c6759b1051e8ecb84e82cef569fe(af854a3a-2127-422b-91ae-364da2661108)

https://www.oracle.com/security-alerts/cpuApr2021.html(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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