Use After Free Affecting kernel-debug package, versions <0:2.6.32-754.15.3.el6
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.
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Test your applications- Snyk IDSNYK-CENTOS6-KERNELDEBUG-2155238
- published26 Jul 2021
- disclosed17 Jun 2019
Introduced: 17 Jun 2019
CVE-2019-3896 (opens in a new tab)How to fix?
Upgrade Centos:6 kernel-debug to version 0:2.6.32-754.15.3.el6 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-debug package and not the kernel-debug package as distributed by Centos.
See How to fix? for Centos:6 relevant fixed versions and status.
A double-free can happen in idr_remove_all() in lib/idr.c in the Linux kernel 2.6 branch. An unprivileged local attacker can use this flaw for a privilege escalation or for a system crash and a denial of service (DoS).
References
- http://www.securityfocus.com/bid/108814
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3896
- https://security.netapp.com/advisory/ntap-20190710-0002/
- https://support.f5.com/csp/article/K04327111
- https://access.redhat.com/security/cve/CVE-2019-3896
- https://access.redhat.com/errata/RHSA-2019:1488
- https://bugzilla.redhat.com/show_bug.cgi?id=1694812