CVE-2020-14331

HIGH

Description

A flaw was found in the Linux kernel’s implementation of the invert video code on VGA consoles when a local attacker attempts to resize the console, calling an ioctl VT_RESIZE, which causes an out-of-bounds write to occur. This flaw allows a local user with access to the VGA console to crash the system, potentially escalating their privileges on the system. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

References

https://bugzilla.redhat.com/show_bug.cgi?id=1858679

https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html

https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html

https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html

https://lists.openwall.net/linux-kernel/2020/07/29/234

https://www.openwall.com/lists/oss-security/2020/07/28/2

Details

Source: MITRE

Published: 2020-09-15

Updated: 2021-01-13

Type: CWE-787

Risk Information

CVSS v2.0

Base Score: 7.2

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

Impact Score: 10

Exploitability Score: 3.9

Severity: HIGH

CVSS v3.0

Base Score: 6.6

Vector: CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 0.7

Severity: MEDIUM

Tenable Plugins

View all (53 total)

IDNameProductFamilySeverity
147559EulerOS Virtualization 3.0.6.6 : kernel (EulerOS-SA-2021-1454)NessusHuawei Local Security Checks
high
147512EulerOS : kernel (EulerOS-SA-2021-1604)NessusHuawei Local Security Checks
high
147318NewStart CGSL MAIN 6.02 : kernel Multiple Vulnerabilities (NS-SA-2021-0078)NessusNewStart CGSL Local Security Checks
high
146282openSUSE Security Update : RT kernel (openSUSE-2021-242)NessusSuSE Local Security Checks
high
145986CentOS 8 : kernel (CESA-2020:4286)NessusCentOS Local Security Checks
high
143840SUSE SLES12 Security Update : kernel (SUSE-SU-2020:2623-1)NessusSuSE Local Security Checks
high
143833SUSE SLES15 Security Update : kernel (SUSE-SU-2020:2631-1)NessusSuSE Local Security Checks
high
143767SUSE SLES15 Security Update : kernel (SUSE-SU-2020:2610-1)NessusSuSE Local Security Checks
high
143049CentOS 7 : kernel (CESA-2020:5023)NessusCentOS Local Security Checks
high
142822Scientific Linux Security Update : kernel on SL7.x x86_64 (2020:5023)NessusScientific Linux Local Security Checks
high
142788Oracle Linux 7 : kernel (ELSA-2020-5023)NessusOracle Linux Local Security Checks
high
142709RHEL 7 : kernel (RHSA-2020:5023)NessusRed Hat Local Security Checks
high
142706RHEL 7 : kernel-rt (RHSA-2020:5026)NessusRed Hat Local Security Checks
high
142240EulerOS 2.0 SP2 : kernel (EulerOS-SA-2020-2353)NessusHuawei Local Security Checks
high
142176Debian DLA-2420-2 : linux regression updateNessusDebian Local Security Checks
high
142148EulerOS 2.0 SP8 : kernel (EulerOS-SA-2020-2311)NessusHuawei Local Security Checks
high
142112EulerOS 2.0 SP5 : kernel (EulerOS-SA-2020-2303)NessusHuawei Local Security Checks
high
141961Amazon Linux AMI : kernel (ALAS-2020-1437)NessusAmazon Linux Local Security Checks
high
141789Slackware 14.2 : Slackware 14.2 kernel (SSA:2020-295-01)NessusSlackware Local Security Checks
high
141777Oracle Linux 8 : kernel (ELSA-2020-4286)NessusOracle Linux Local Security Checks
high
141606RHEL 8 : kernel (RHSA-2020:4286)NessusRed Hat Local Security Checks
high
141603RHEL 8 : kernel-rt (RHSA-2020:4289)NessusRed Hat Local Security Checks
high
141396Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2020-5885)NessusOracle Linux Local Security Checks
high
141374OracleVM 3.4 : Unbreakable / etc (OVMSA-2020-0044)NessusOracleVM Local Security Checks
critical
141364Oracle Linux 6 : Unbreakable Enterprise kernel (ELSA-2020-5878)NessusOracle Linux Local Security Checks
high
141207Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2020-5866)NessusOracle Linux Local Security Checks
critical
141106Amazon Linux 2 : kernel (ALAS-2020-1495)NessusAmazon Linux Local Security Checks
high
140933Debian DLA-2385-1 : linux-4.19 security updateNessusDebian Local Security Checks
high
140917EulerOS 2.0 SP3 : kernel (EulerOS-SA-2020-2150)NessusHuawei Local Security Checks
high
140588Oracle Linux 7 / 8 : Unbreakable Enterprise kernel (ELSA-2020-5848)NessusOracle Linux Local Security Checks
high
140500Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2020-5844)NessusOracle Linux Local Security Checks
high
140499Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2020-5845)NessusOracle Linux Local Security Checks
high
140496Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2020-5841)NessusOracle Linux Local Security Checks
high
140480SUSE SLES12 Security Update : kernel (SUSE-SU-2020:2582-1)NessusSuSE Local Security Checks
high
140476SUSE SLES12 Security Update : kernel (SUSE-SU-2020:2576-1)NessusSuSE Local Security Checks
high
140475SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2020:2575-1)NessusSuSE Local Security Checks
high
140449SUSE SLES12 Security Update : kernel (SUSE-SU-2020:2574-1)NessusSuSE Local Security Checks
high
140385SUSE SLES12 Security Update : kernel (SUSE-SU-2020:2540-1) (Spectre)NessusSuSE Local Security Checks
high
140384SUSE SLES12 Security Update : kernel (SUSE-SU-2020:2502-1)NessusSuSE Local Security Checks
high
140383SUSE SLES12 Security Update : kernel (SUSE-SU-2020:2499-1)NessusSuSE Local Security Checks
high
140382SUSE SLES12 Security Update : kernel (SUSE-SU-2020:2498-1)NessusSuSE Local Security Checks
high
140381SUSE SLES12 Security Update : kernel (SUSE-SU-2020:2497-1)NessusSuSE Local Security Checks
critical
140380SUSE SLES12 Security Update : kernel (SUSE-SU-2020:2492-1)NessusSuSE Local Security Checks
critical
140379SUSE SLES12 Security Update : kernel (SUSE-SU-2020:2491-1)NessusSuSE Local Security Checks
critical
140365openSUSE Security Update : the Linux Kernel (openSUSE-2020-1325) (Spectre)NessusSuSE Local Security Checks
high
140264SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2020:2486-1)NessusSuSE Local Security Checks
high
139766openSUSE Security Update : the Linux Kernel (openSUSE-2020-1236)NessusSuSE Local Security Checks
high
139401openSUSE Security Update : the Linux Kernel (openSUSE-2020-1153)NessusSuSE Local Security Checks
high
139363SUSE SLES12 Security Update : kernel (SUSE-SU-2020:2122-1)NessusSuSE Local Security Checks
high
139361SUSE SLES12 Security Update : kernel (SUSE-SU-2020:2119-1)NessusSuSE Local Security Checks
high
139079Photon OS 1.0: Linux PHSA-2020-1.0-0310NessusPhotonOS Local Security Checks
high
139076Photon OS 3.0: Linux PHSA-2020-3.0-0119NessusPhotonOS Local Security Checks
high
139075Photon OS 2.0: Linux PHSA-2020-2.0-0266NessusPhotonOS Local Security Checks
high