CVE-2019-15212 - Double Free

Severity

49%

Complexity

39%

Confidentiality

115%

An issue was discovered in the Linux kernel before 5.1.8. There is a double-free caused by a malicious USB device in the drivers/usb/misc/rio500.c driver.

An issue was discovered in the Linux kernel before 5.1.8. There is a double-free caused by a malicious USB device in the drivers/usb/misc/rio500.c driver.

CVSS 3.0 Base Score 4.6. CVSS Attack Vector: physical. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

CVSS 2.0 Base Score 4.9. CVSS Attack Vector: local. CVSS Attack Complexity: low. CVSS Vector: (AV:L/AC:L/Au:N/C:N/I:N/A:C).

Demo Examples

Double Free

CWE-415

Double Free

CWE-415

While contrived, this code should be exploitable on Linux distributions which do not ship with heap-chunk check summing turned on.


               
}
free(buf1R2);

Overview

First reported 5 years ago

2019-08-19 22:15:00

Last updated 5 years ago

2019-09-03 00:15:00

Affected Software

Linux Kernel

References

openSUSE-SU-2019:2173

openSUSE-SU-2019:2181

[oss-security] 20190820 Linux kernel: multiple vulnerabilities in the USB subsystem x2

Mailing List, Third Party Advisory

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1.8

Release Notes, Vendor Advisory

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3864d33943b4a76c6e64616280e98d2410b1190f

Patch, Vendor Advisory

[debian-lts-announce] 20190914 [SECURITY] [DLA 1919-1] linux-4.9 security update

[debian-lts-announce] 20190915 [SECURITY] [DLA 1919-2] linux-4.9 security update

[debian-lts-announce] 20190925 [SECURITY] [DLA 1930-1] linux security update

https://security.netapp.com/advisory/ntap-20190905-0002/

https://syzkaller.appspot.com/bug?id=64aa96c96f594a77eb8d945df21ec76dd35573b3

Exploit, Third Party Advisory

USN-4115-1

USN-4118-1

USN-4147-1

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