Debian LTS Advisory ([SECURITY] [DLA 1919-1] linux-4.9 security update)

Technical Details

Severity Level:

High Severity

CVSS Score:

10.0

CVSS Base Vector:
AV:N/AC:L/Au:N/C:C/I:C/A:C

Summary:
The remote host is missing an update for the 'linux-4.9' Linux Distribution Package(s) announced via the DSA-1919-1 advisory.

Detection Method:
Checks if a vulnerable Linux Distribution Package version is present on the target host.

Technical Details:
Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks. CVE-2019-0136 It was discovered that the wifi soft-MAC implementation (mac80211) did not properly authenticate Tunneled Direct Link Setup (TDLS) messages. A nearby attacker could use this for denial of service (loss of wifi connectivity). CVE-2019-9506 Daniele Antonioli, Nils Ole Tippenhauer, and Kasper Rasmussen discovered a weakness in the Bluetooth pairing protocols, dubbed the 'KNOB attack'. An attacker that is nearby during pairing could use this to weaken the encryption used between the paired devices, and then to eavesdrop on and/or spoof communication between them. This update mitigates the attack by requiring a minimum encryption key length of 56 bits. CVE-2019-11487 Jann Horn discovered that the FUSE (Filesystem-in-Userspace) facility could be used to cause integer overflow in page reference counts, leading to a use-after-free. On a system with sufficient physical memory, a local user permitted to create arbitrary FUSE mounts could use this for privilege escalation. By default, unprivileged users can only mount FUSE filesystems through fusermount, which limits the number of mounts created and should completely mitigate the issue. CVE-2019-15211 The syzkaller tool found a bug in the radio-raremono driver that could lead to a use-after-free. An attacker able to add and remove USB devices could use this to cause a denial of service (memory corruption or crash) or possibly for privilege escalation. CVE-2019-15212 The syzkaller tool found that the rio500 driver does not work correctly if more than one device is bound to it. An attacker able to add USB devices could use this to cause a denial of service (memory corruption or crash) or possibly for privilege escalation. CVE-2019-15215 The syzkaller tool found a bug in the cpia2_usb driver that leads to a use-after-free. An attacker able to add and remove USB devices could use this to cause a denial of service (memory corruption or crash) or possibly for privilege escalation. CVE-2019-15216 The syzkaller tool found a bug in the yurex driver that leads to a use-after-free. An attacker able to add and remove USB devices could use this to cause a denial of service (memory corruption or crash) or possibly for privilege escalation. CVE-2019-15218 The syzkaller tool found that the smsusb driver did not validate that USB devices have the expected endpoints, potentially leading to a null pointer dereference. An attacker able to add USB devices could use this to cause a denial of service (BUG/oops). CVE-2019 ... Description truncated. Please see the references for more information.

Affected Versions:
'linux-4.9' Linux Distribution Package(s) on Debian Linux.

Recommendations:
For Debian 8 'Jessie', these problems have been fixed in version 4.9.189-3~deb8u1. We recommend that you upgrade your linux-4.9 Linux Distribution Packages.

Solution Type:
Vendor Patch

Detection Type:
Linux Distribution Package

Family:

Debian Local Security Checks

Creation Time:

2019-09-14 02:00:24

Modification Time:

2019-09-14 02:00:24

Find and Fix this Vulnerability:

Mageni can help you to find out if you have this or more vulnerabilities exposing you to hackers, ransomware and malware: Download Mageni's Free Edition

NVD CVE ID:
CVE-2019-0136
CVE-2019-11487
CVE-2019-15211
CVE-2019-15212
CVE-2019-15215
CVE-2019-15216
CVE-2019-15218
CVE-2019-15219
CVE-2019-15220
CVE-2019-15221
CVE-2019-15292
CVE-2019-15538
CVE-2019-15666
CVE-2019-15807
CVE-2019-15924
CVE-2019-15926
CVE-2019-9506

Don't pay for a vulnerability scanning and management platform. This one is free.

Mageni provides a free vulnerability scanning and management platform which helps you need to find, prioritize, remediate and manage your vulnerabilities.