Debian DLA-2417-1 : linux-4.19 security update

high Nessus Plugin ID 142052
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

The remote Debian host is missing a security update.

Description

Several vulnerabilities have been discovered in the Linux kernel that may lead to the execution of arbitrary code, privilege escalation, denial of service or information leaks.

CVE-2020-12351

Andy Nguyen discovered a flaw in the Bluetooth implementation in the way L2CAP packets with A2MP CID are handled. A remote attacker in short distance knowing the victim's Bluetooth device address can send a malicious l2cap packet and cause a denial of service or possibly arbitrary code execution with kernel privileges.

CVE-2020-12352

Andy Nguyen discovered a flaw in the Bluetooth implementation. Stack memory is not properly initialised when handling certain AMP packets.
A remote attacker in short distance knowing the victim's Bluetooth device address address can retrieve kernel stack information.

CVE-2020-25211

A flaw was discovered in netfilter subsystem. A local attacker able to inject conntrack Netlink configuration can cause a denial of service.

CVE-2020-25643

ChenNan Of Chaitin Security Research Lab discovered a flaw in the hdlc_ppp module. Improper input validation in the ppp_cp_parse_cr() function may lead to memory corruption and information disclosure.

CVE-2020-25645

A flaw was discovered in the interface driver for GENEVE encapsulated traffic when combined with IPsec. If IPsec is configured to encrypt traffic for the specific UDP port used by the GENEVE tunnel, tunneled data isn't correctly routed over the encrypted link and sent unencrypted instead.

For Debian 9 stretch, these problems have been fixed in version 4.19.152-1~deb9u1.

We recommend that you upgrade your linux-4.19 packages.

For the detailed security status of linux-4.19 please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/linux-4.19

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Upgrade the affected packages.

See Also

https://lists.debian.org/debian-lts-announce/2020/10/msg00028.html

https://packages.debian.org/source/stretch/linux-4.19

https://security-tracker.debian.org/tracker/source-package/linux-4.19

Plugin Details

Severity: High

ID: 142052

File Name: debian_DLA-2417.nasl

Version: 1.3

Type: local

Agent: unix

Published: 10/29/2020

Updated: 4/12/2021

Dependencies: ssh_get_info.nasl

Risk Information

CVSS Score Source: CVE-2020-25643

VPR

Risk Factor: Critical

Score: 9

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

Vector: AV:N/AC:M/Au:S/C:P/I:P/A:C

Temporal Vector: E:POC/RL:OF/RC:C

CVSS v3

Risk Factor: High

Base Score: 7.2

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:linux-config-4.19, p-cpe:/a:debian:debian_linux:linux-doc-4.19, p-cpe:/a:debian:debian_linux:linux-headers-4.19.0-0.bpo.10-686, p-cpe:/a:debian:debian_linux:linux-headers-4.19.0-0.bpo.10-686-pae, p-cpe:/a:debian:debian_linux:linux-headers-4.19.0-0.bpo.10-all, p-cpe:/a:debian:debian_linux:linux-headers-4.19.0-0.bpo.10-all-amd64, p-cpe:/a:debian:debian_linux:linux-headers-4.19.0-0.bpo.10-all-arm64, p-cpe:/a:debian:debian_linux:linux-headers-4.19.0-0.bpo.10-all-armel, p-cpe:/a:debian:debian_linux:linux-headers-4.19.0-0.bpo.10-all-armhf, p-cpe:/a:debian:debian_linux:linux-headers-4.19.0-0.bpo.10-all-i386, p-cpe:/a:debian:debian_linux:linux-headers-4.19.0-0.bpo.10-amd64, p-cpe:/a:debian:debian_linux:linux-headers-4.19.0-0.bpo.10-arm64, p-cpe:/a:debian:debian_linux:linux-headers-4.19.0-0.bpo.10-armmp, p-cpe:/a:debian:debian_linux:linux-headers-4.19.0-0.bpo.10-armmp-lpae, p-cpe:/a:debian:debian_linux:linux-headers-4.19.0-0.bpo.10-cloud-amd64, p-cpe:/a:debian:debian_linux:linux-headers-4.19.0-0.bpo.10-common, p-cpe:/a:debian:debian_linux:linux-headers-4.19.0-0.bpo.10-common-rt, p-cpe:/a:debian:debian_linux:linux-headers-4.19.0-0.bpo.10-marvell, p-cpe:/a:debian:debian_linux:linux-headers-4.19.0-0.bpo.10-rpi, p-cpe:/a:debian:debian_linux:linux-headers-4.19.0-0.bpo.10-rt-686-pae, p-cpe:/a:debian:debian_linux:linux-headers-4.19.0-0.bpo.10-rt-amd64, p-cpe:/a:debian:debian_linux:linux-headers-4.19.0-0.bpo.10-rt-arm64, p-cpe:/a:debian:debian_linux:linux-headers-4.19.0-0.bpo.10-rt-armmp, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-0.bpo.10-686, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-0.bpo.10-686-dbg, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-0.bpo.10-686-pae, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-0.bpo.10-686-pae-dbg, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-0.bpo.10-amd64, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-0.bpo.10-amd64-dbg, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-0.bpo.10-arm64, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-0.bpo.10-arm64-dbg, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-0.bpo.10-armmp, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-0.bpo.10-armmp-dbg, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-0.bpo.10-armmp-lpae, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-0.bpo.10-armmp-lpae-dbg, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-0.bpo.10-cloud-amd64, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-0.bpo.10-cloud-amd64-dbg, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-0.bpo.10-marvell, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-0.bpo.10-marvell-dbg, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-0.bpo.10-rpi, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-0.bpo.10-rpi-dbg, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-0.bpo.10-rt-686-pae, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-0.bpo.10-rt-686-pae-dbg, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-0.bpo.10-rt-amd64, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-0.bpo.10-rt-amd64-dbg, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-0.bpo.10-rt-arm64, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-0.bpo.10-rt-arm64-dbg, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-0.bpo.10-rt-armmp, p-cpe:/a:debian:debian_linux:linux-image-4.19.0-0.bpo.10-rt-armmp-dbg, p-cpe:/a:debian:debian_linux:linux-kbuild-4.19, p-cpe:/a:debian:debian_linux:linux-perf-4.19, p-cpe:/a:debian:debian_linux:linux-source-4.19, p-cpe:/a:debian:debian_linux:linux-support-4.19.0-0.bpo.10, cpe:/o:debian:debian_linux:9.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/28/2020

Vulnerability Publication Date: 9/9/2020

Reference Information

CVE: CVE-2020-12351, CVE-2020-12352, CVE-2020-25211, CVE-2020-25643, CVE-2020-25645