Vulnerability Details : CVE-2019-12819
An issue was discovered in the Linux kernel before 5.0. The function __mdiobus_register() in drivers/net/phy/mdio_bus.c calls put_device(), which will trigger a fixed_mdio_bus_init use-after-free. This will cause a denial of service.
Vulnerability category: Memory CorruptionDenial of service
Exploit prediction scoring system (EPSS) score for CVE-2019-12819
Probability of exploitation activity in the next 30 days: 0.05%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 12 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2019-12819
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
2.1
|
LOW | AV:L/AC:L/Au:N/C:N/I:N/A:P |
3.9
|
2.9
|
NIST |
5.5
|
MEDIUM | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2019-12819
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Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-12819
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http://packetstormsecurity.com/files/154245/Kernel-Live-Patch-Security-Notice-LSN-0054-1.html
Kernel Live Patch Security Notice LSN-0054-1 ≈ Packet Storm
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https://usn.ubuntu.com/4094-1/
USN-4094-1: Linux kernel vulnerabilities | Ubuntu security notices
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https://usn.ubuntu.com/4118-1/
USN-4118-1: Linux kernel (AWS) vulnerabilities | Ubuntu security notices
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http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00039.html
[security-announce] openSUSE-SU-2019:1570-1: important: Security update
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https://github.com/torvalds/linux/commit/6ff7b060535e87c2ae14dd8548512abfdda528fb
mdio_bus: Fix use-after-free on device_register fails · torvalds/linux@6ff7b06 · GitHubPatch;Third Party Advisory
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https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6ff7b060535e87c2ae14dd8548512abfdda528fb
kernel/git/torvalds/linux.git - Linux kernel source treeMailing List;Patch;Vendor Advisory
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http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00040.html
[security-announce] openSUSE-SU-2019:1571-1: important: Security update
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http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00048.html
[security-announce] openSUSE-SU-2019:1579-1: important: Security update
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http://www.securityfocus.com/bid/108768
Linux kernel CVE-2019-12819 Local Denial of Service VulnerabilityThird Party Advisory;VDB Entry
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https://security.netapp.com/advisory/ntap-20190710-0002/
June 2019 Linux Kernel Vulnerabilities in NetApp Products | NetApp Product Security
Products affected by CVE-2019-12819
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*