Use After Free in Linux Kernel
CVE-2019-11811
An issue was discovered in the Linux kernel before 5.0.4. There is a use-after-free upon attempted read access to /proc/ioports after the ipmi_si module is removed, related to drivers/char/ipmi/ipmi_si_intf.c, drivers/char/ipmi/ipmi_si_mem_io.c, and drivers/char/ipmi/ipmi_si_port_io.c.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (38.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 38th percentile — 38.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Linux Kernel
- openSUSE Leap — versions 15.1
- Red Hat Enterprise Linux — versions 7.0
- Red Hat Enterprise Linux Aus — versions 7.6
- Red Hat Enterprise Linux Desktop — versions 7.0
- Red Hat Enterprise Linux Server — versions 7.0
- Red Hat Enterprise Linux Server Aus — versions 7.4
- Red Hat Enterprise Linux Server Tus — versions 7.4, 7.6
- Red Hat Enterprise Linux Workstation — versions 7.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.4 (Release Notes, Vendor Advisory)
- github.com/torvalds/linux/commit/401e7e88d4ef80188ffa07095ac00456f901b8c4 (Patch, Third Party Advisory)
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/ (Patch, Vendor Advisory)
- lists.opensuse.org/opensuse-security-announce/2019-05/msg00071.html (vendor-advisory, Third Party Advisory)
- support.f5.com/csp/article/K01512680 (Third Party Advisory)
- security.netapp.com/advisory/ntap-20190719-0003/ (Third Party Advisory)
- www.securityfocus.com/bid/108410 (VDB Entry, Third Party Advisory, vdb-entry)
- access.redhat.com/errata/RHSA-2019:1873 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2019:1891 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2019:1959 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-11811?
- CVE-2019-11811 is a high-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 7.0/10. Published 2019-05-07.
- How severe is CVE-2019-11811?
- High severity. CVSS v3 base score is 7.0 out of 10.
- Is CVE-2019-11811 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.