CVE-2021-4203CWE-362

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…

published March 25, 2022

CVSS
—
EPSS
2%
Percentile
77.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01747 · 77.7th percentile
Weakness
CWE-362 · Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Published
2022-03-25T00:00Z
EPSS history
Timeline
  • 25 MAR 00:00Z
    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…
    cvelistv5