Race Condition Affecting bpftool package, versions <0:3.10.0-1062.el7
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-CENTOS7-BPFTOOL-2137892
- published26 Jul 2021
- disclosed30 Jul 2018
Introduced: 30 Jul 2018
CVE-2018-14625 (opens in a new tab)How to fix?
Upgrade Centos:7 bpftool to version 0:3.10.0-1062.el7 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:7 relevant fixed versions and status.
A flaw was found in the Linux Kernel where an attacker may be able to have an uncontrolled read to kernel-memory from within a vm guest. A race condition between connect() and close() function may allow an attacker using the AF_VSOCK protocol to gather a 4 byte information leak or possibly intercept or corrupt AF_VSOCK messages destined to other clients.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14625
- https://access.redhat.com/security/cve/CVE-2018-14625
- https://syzkaller.appspot.com/bug?extid=bd391451452fb0b93039
- https://lists.debian.org/debian-lts-announce/2019/05/msg00002.html
- https://access.redhat.com/errata/RHSA-2019:2029
- https://usn.ubuntu.com/3871-1/
- https://usn.ubuntu.com/3871-3/
- https://usn.ubuntu.com/3871-4/
- https://usn.ubuntu.com/3871-5/
- https://usn.ubuntu.com/3872-1/
- https://usn.ubuntu.com/3878-1/
- https://usn.ubuntu.com/3878-2/
- https://bugzilla.redhat.com/show_bug.cgi?id=1619846