Use After Free in Linux Kernel
CVE-2019-3896
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).
Vulnerability class: Use-After-Free
EPSS: 0.004 (34.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.0 (High). Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Linux Linux_kernel
- The Linux Foundation Kernel — versions 2.6.32
- Redhat Enterprise_linux_desktop — versions 6.0
- Redhat Enterprise_linux_server — versions 6.0
- Redhat Enterprise_linux_server_aus — versions 6.5, 6.6
- Redhat Enterprise_linux_workstation — versions 6.0
Weakness classification (CWE)
References
- secalert@redhat.com (x_refsource_CONFIRM, Third Party Advisory, Issue Tracking)
- secalert@redhat.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- secalert@redhat.com (x_refsource_CONFIRM)
- secalert@redhat.com (x_refsource_CONFIRM)
Frequently asked questions
- What is CVE-2019-3896?
- CVE-2019-3896 is a high-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 7.0/10. Published 2019-06-19.
- How severe is CVE-2019-3896?
- High severity. CVSS v3 base score is 7.0 out of 10.