CVE Details

Release Date:2021-07-07


A heap out-of-bounds write affecting Linux since v2.6.19-rc1 was discovered in net/netfilter/x_tables.c. This allows an attacker to gain privileges or cause a DoS (via heap memory corruption) through user name space

See more information about CVE-2021-22555 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 6 (kernel-uek)ELSA-2021-93952021-08-04
Oracle Linux version 7 (kernel)ELSA-2021-33272021-08-31
Oracle Linux version 7 (kernel-uek)ELSA-2021-93952021-08-04
Oracle Linux version 8 (kernel)ELSA-2021-30572021-08-11
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