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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.004 (33.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 33.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Linux Kernel
- The Linux Foundation Kernel — versions 2.6.32
- Red Hat Enterprise Linux Desktop — versions 6.0
- Red Hat Enterprise Linux Server — versions 6.0
- Red Hat Enterprise Linux Server Aus — versions 6.5, 6.6
- Red Hat Enterprise Linux Workstation — versions 6.0
Weakness classification (CWE)
References
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- www.securityfocus.com/bid/108814 (VDB Entry, Third Party Advisory, vdb-entry)
- support.f5.com/csp/article/K04327111
- security.netapp.com/advisory/ntap-20190710-0002/
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.