CVE-2019-11811: linux linux_kernel Use After Free
Vulnerability summary
CVE-2019-11811 is a high (CVSS 7.0) Use After Free vulnerability in linux linux_kernel. EPSS estimates a 0.45% chance of exploitation in the next 30 days, higher than 39.2% of scored vulnerabilities.
Not severe (CVSS 7, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 11 · Related 3Timeline
- 07-05-2019PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
5 scores · 3 sources · 3 versions- OSV · UbuntuEcosystem advisory · calculated7.0HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.0HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.45%
Chance of exploitation in the next 30 days
Percentile
39%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.45% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Redhat7 products
- enterprise_linuxEOL7.0
- enterprise_linux_aus7.6
- enterprise_linux_desktop7.0
- enterprise_linux_server7.0
- enterprise_linux_server_aus7.4
Ubuntu4 products
- linuxAll versions (No fix recorded)
- linux-azureAll versions (No fix recorded)
- linux-hwe< 5.0.0-23.24~18.04.1
- linux-lts-xenialAll versions (No fix recorded)
Debian1 product
- linux< 4.19.37-1
Linux1 product
- linux_kernel≥ 4.18, < 4.19.31 | ≥ 4.20, < 5.0.4
Opensuse1 product
- leapEOL15.1
5 vendors · 14 products
References
17 links- cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.4X Refsource MISCRelease NotesVendor AdvisoryREPORT
- github.com/torvalds/linux/commit/401e7e88d4ef80188ffa07095ac00456f901b8c4X Refsource MISCPatchThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2019-05/msg00071.htmlVendor AdvisoryX Refsource SUSEThird Party Advisory
