CVE-2021-33033

CVE Details

Release Date:2021-05-14

Description


The Linux kernel before 5.11.14 has a use-after-free in cipso_v4_genopt in net/ipv4/cipso_ipv4.c because the CIPSO and CALIPSO refcounting for the DOI definitions is mishandled, aka CID-ad5d07f4a9cd. This leads to writing an arbitrary value.

See more information about CVE-2021-33033 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: 7.8 Base Metrics: AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Access Vector: Local network Attack Complexity: Low
Privileges Required: Low User Interaction: None
Scope: Unchanged Confidentiality Impact: High
Integrity Impact: High Availability Impact: High

Errata information


PlatformErrataRelease Date
Oracle Linux version 7 (kernel)ELSA-2021-27252021-07-21
Oracle Linux version 7 (kernel-uek)ELSA-2021-93492021-07-12
Oracle Linux version 7 (kernel-uek)ELSA-2021-93622021-07-16
Oracle Linux version 7 (kernel-uek-container)ELSA-2021-93512021-07-12
Oracle Linux version 7 (kernel-uek-container)ELSA-2021-93632021-07-16
Oracle Linux version 8 (kernel-uek)ELSA-2021-93622021-07-16
Oracle Linux version 8 (kernel-uek-container)ELSA-2021-93632021-07-16



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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