CVE-2021-33909

CVE Details

Release Date:2021-08-10

Description


fs/seq_file.c in the Linux kernel 3.16 through 5.13.x before 5.13.4 does not properly restrict seq buffer allocations, leading to an integer overflow, an Out-of-bounds Write, and escalation to root by an unprivileged user, aka CID-8cae8cd89f05.

See more information about CVE-2021-33909 from MITRE CVE dictionary and NIST NVD


CVSS v3.0 metrics


NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.

Base Score: Base Metrics:
Access Vector: Undefined Attack Complexity: Undefined
Privileges Required: None User Interaction: None
Scope: Unchanged Confidentiality Impact: Undefined
Integrity Impact: Undefined Availability Impact: Undefined

Errata information


PlatformErrataRelease Date
Oracle Linux version 6 (kernel)ELSA-2021-93742021-07-26
Oracle Linux version 6 (kernel-uek)ELSA-2021-93692021-07-22
Oracle Linux version 6 (kernel-uek)ELSA-2021-93952021-08-04
Oracle Linux version 7 (kernel)ELSA-2021-27252021-07-21
Oracle Linux version 7 (kernel-uek)ELSA-2021-93682021-07-22
Oracle Linux version 7 (kernel-uek)ELSA-2021-93692021-07-22
Oracle Linux version 7 (kernel-uek)ELSA-2021-93712021-07-22
Oracle Linux version 7 (kernel-uek)ELSA-2021-93952021-08-04
Oracle Linux version 7 (kernel-uek)ELSA-2021-94042021-08-10
Oracle Linux version 7 (kernel-uek)ELSA-2021-94072021-08-11
Oracle Linux version 7 (kernel-uek-container)ELSA-2021-93702021-07-22
Oracle Linux version 7 (kernel-uek-container)ELSA-2021-93722021-07-22
Oracle Linux version 7 (kernel-uek-container)ELSA-2021-94062021-08-10
Oracle Linux version 7 (kernel-uek-container)ELSA-2021-94102021-08-10
Oracle Linux version 8 (kernel)ELSA-2021-27142021-07-21
Oracle Linux version 8 (kernel-uek)ELSA-2021-93712021-07-22
Oracle Linux version 8 (kernel-uek)ELSA-2021-94042021-08-10
Oracle Linux version 8 (kernel-uek-container)ELSA-2021-93722021-07-22
Oracle Linux version 8 (kernel-uek-container)ELSA-2021-94062021-08-10
Oracle VM version 3 (kernel-uek)OVMSA-2021-00232021-07-22
Oracle VM version 3 (kernel-uek)OVMSA-2021-00252021-08-04



This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team

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