What is RHSA-2021:3523?

RHSA-2021:3523 is a security advisory published by Red Hat Product Security with High severity. Red Hat Security Advisory: kpatch-patch security update

Which CVE IDs does RHSA-2021:3523 cover?

RHSA-2021:3523 covers the following CVE IDs: CVE-2021-3347, CVE-2021-22555, CVE-2021-32399. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of RHSA-2021:3523?

RHSA-2021:3523 has a CVSS v3 base score of 7.8, published by Red Hat Product Security.

RHSA-2021:3523HighCVSS 7.8

Red Hat Security Advisory: kpatch-patch security update

Vendor

Red Hat Product Security

Published

September 14, 2021

Last Modified

July 11, 2026

🔗 CVE IDs covered (3)

CVE-2021-3347 →CVE-2021-22555 →CVE-2021-32399 →

📋 Description

CVE-2021-3347 — kernel: Use after free via PI futex state CVE-2021-22555 — kernel: out-of-bounds write in xt_compat_target_from_user() in net/netfilter/x_tables.c CVE-2021-32399 — kernel: race condition for removal of the HCI controller

🔗 References (6)

selfhttps://access.redhat.com/errata/RHSA-2021:3523
externalhttps://access.redhat.com/security/updates/classification/#important
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=1922249
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=1970807
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=1980101
selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2021/rhsa-2021_3523.json