CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
7.0 | $0-$5k | 0.00 |
A vulnerability classified as critical was found in Linux Kernel up to 5.0.3 (Operating System). Affected by this vulnerability is an unknown code block of the file /proc/ioports. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:
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.
The bug was discovered 02/19/2019. The weakness was released 05/07/2019 by Alex (Website). The advisory is shared at securityfocus.com. This vulnerability is known as CVE-2019-11811 since 05/07/2019. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available.
The vulnerability was handled as a non-public zero-day exploit for at least 77 days. During that time the estimated underground price was around $5k-$25k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 172474 (OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2019:1479-1)).
Upgrading to version 5.0.4 eliminates this vulnerability.
Entries connected to this vulnerability are available at 128716, 134037, 134452 and 134460.
Product
Type
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.2VulDB Meta Temp Score: 7.0
VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.0
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
---|---|---|---|---|---|
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
---|---|---|---|---|---|
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Use after freeCWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: Kernel 5.0.4
Patch: git.kernel.org
Timeline
01/07/2019 🔍02/19/2019 🔍
05/07/2019 🔍
05/07/2019 🔍
05/08/2019 🔍
09/12/2023 🔍
Sources
Vendor: kernel.orgAdvisory: RHSA-2019:1873⛔
Researcher: Alex
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2019-11811 (🔍)
SecurityFocus: 106478 - Linux Kernel 'mm/mincore.c' Local Information Disclosure Vulnerability
See also: 🔍
Entry
Created: 05/08/2019 07:30Updated: 09/12/2023 21:53
Changes: 05/08/2019 07:30 (63), 06/07/2020 17:35 (6), 09/12/2023 21:53 (5)
Complete: 🔍
Cache ID: 3:F8A:103
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