Improper Validation of Integrity Check Value Affecting bpftool package, versions <0:4.18.0-372.9.1.el8
Threat Intelligence
EPSS
0.62% (80th
percentile)
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Test your applications- Snyk ID SNYK-CENTOS8-BPFTOOL-1971708
- published 8 Sep 2021
- disclosed 8 Sep 2021
Introduced: 8 Sep 2021
CVE-2021-3772 Open this link in a new tabHow to fix?
Upgrade Centos:8 bpftool to version 0:4.18.0-372.9.1.el8 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream bpftool package and not the bpftool package as distributed by Centos.
See How to fix? for Centos:8 relevant fixed versions and status.
A flaw was found in the Linux SCTP stack. A blind attacker may be able to kill an existing SCTP association through invalid chunks if the attacker knows the IP-addresses and port numbers being used and the attacker can send packets with spoofed IP addresses.
References
- https://access.redhat.com/security/cve/CVE-2021-3772
- https://access.redhat.com/errata/RHSA-2022:1988
- https://bugzilla.redhat.com/show_bug.cgi?id=2000694
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=32f8807a48ae55be0e76880cfe8607a18b5bb0df
- https://github.com/torvalds/linux/commit/32f8807a48ae55be0e76880cfe8607a18b5bb0df
- https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html
- https://security.netapp.com/advisory/ntap-20221007-0001/
- https://ubuntu.com/security/CVE-2021-3772
- https://www.debian.org/security/2022/dsa-5096
- https://www.oracle.com/security-alerts/cpujul2022.html
CVSS Scores
version 3.1