Description
A use-after-free read flaw was found in sock_getsockopt() in net/core/sock.c due to SO_PEERCRED and SO_PEERGROUPS race with listen() (and connect()) in the Linux kernel. In this flaw, an attacker with a user privileges may crash the system or leak internal kernel information.
Published: 2022-03-25
Score: 6.8 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-2941-1 linux-4.19 security update
Debian DSA Debian DSA DSA-5096-1 linux security update
EUVD EUVD EUVD-2021-34061 A use-after-free read flaw was found in sock_getsockopt() in net/core/sock.c due to SO_PEERCRED and SO_PEERGROUPS race with listen() (and connect()) in the Linux kernel. In this flaw, an attacker with a user privileges may crash the system or leak internal kernel information.
Ubuntu USN Ubuntu USN USN-6001-1 Linux kernel (AWS) vulnerabilities
Ubuntu USN Ubuntu USN USN-6013-1 Linux kernel (AWS) vulnerabilities
Ubuntu USN Ubuntu USN USN-6014-1 Linux kernel vulnerabilities
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Subscriptions

Linux Linux Kernel
Netapp A700s A700s Firmware Active Iq Unified Manager Bootstrap Os E-series Santricity Os Controller Element Software H300s H300s Firmware H410c H410c Firmware H410s H410s Firmware H500s H500s Firmware H700s H700s Firmware Hci Compute Node Hci Management Node Solidfire
Oracle Communications Cloud Native Core Binding Support Function Communications Cloud Native Core Network Exposure Function Communications Cloud Native Core Policy
Redhat Enterprise Linux Rhel Eus
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-03T17:16:04.262Z

Reserved: 2022-01-10T00:00:00.000Z

Link: CVE-2021-4203

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2022-03-25T19:15:09.833

Modified: 2024-11-21T06:37:08.430

Link: CVE-2021-4203

cve-icon Redhat

Severity : Moderate

Publid Date: 2021-09-29T00:00:00Z

Links: CVE-2021-4203 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses