Alpaquita LinuxStreamSecurity Advisory
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CVE-2021-4203

Published: March 25, 2022Last modified: November 8, 2023

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.

Severity score breakdown

ParameterValue
Base score6.8
Attack VectorNETWORK
Attack complexityHIGH
Privileges requiredLOW
User interactionNONE
ScopeUNCHANGED
ConfidentialityHIGH
Integrity impactNONE
Availability impactHIGH
VectorCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H

Status

ProductReleasePackageStatus
Alpaquita LinuxStreamlinux-ltsUnknown (6.1.33-r0)

References

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