CVE-2020-11494

medium
New! CVE Severity Now Using CVSS v3

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

Description

An issue was discovered in slc_bump in drivers/net/can/slcan.c in the Linux kernel 3.16 through 5.6.2. It allows attackers to read uninitialized can_frame data, potentially containing sensitive information from kernel stack memory, if the configuration lacks CONFIG_INIT_STACK_ALL, aka CID-b9258a2cece4.

References

https://github.com/torvalds/linux/commit/b9258a2cece4ec1f020715fe3554bc2e360f6264

http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00035.html

https://security.netapp.com/advisory/ntap-20200430-0004/

https://usn.ubuntu.com/4364-1/

https://usn.ubuntu.com/4368-1/

https://usn.ubuntu.com/4363-1/

https://usn.ubuntu.com/4369-1/

https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html

https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html

https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html

https://www.debian.org/security/2020/dsa-4698

http://packetstormsecurity.com/files/159565/Kernel-Live-Patch-Security-Notice-LSN-0072-1.html

https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=08fadc32ce6239dc75fd5e869590e29bc62bbc28

Details

Source: MITRE

Published: 2020-04-02

Updated: 2021-07-21

Type: CWE-200

Risk Information

CVSS v2

Base Score: 2.1

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

Impact Score: 2.9

Exploitability Score: 3.9

Severity: LOW

CVSS v3

Base Score: 4.4

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

Impact Score: 3.6

Exploitability Score: 0.8

Severity: MEDIUM

Vulnerable Software

Configuration 1

OR

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to 5.6.2 (inclusive)

Configuration 2

OR

cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*

Tenable Plugins

View all (31 total)

IDNameProductFamilySeverity
151229EulerOS Virtualization 3.0.6.6 : kernel (EulerOS-SA-2021-2040)NessusHuawei Local Security Checks
high
140917EulerOS 2.0 SP3 : kernel (EulerOS-SA-2020-2150)NessusHuawei Local Security Checks
medium
138272SUSE SLES15 Security Update : kernel (SUSE-SU-2020:1663-1)NessusSuSE Local Security Checks
critical
137805EulerOS Virtualization for ARM 64 3.0.6.0 : kernel (EulerOS-SA-2020-1698)NessusHuawei Local Security Checks
medium
137516EulerOS 2.0 SP2 : kernel (EulerOS-SA-2020-1674)NessusHuawei Local Security Checks
critical
137391Slackware 14.2 : Slackware 14.2 kernel (SSA:2020-163-01)NessusSlackware Local Security Checks
medium
137340Debian DSA-4698-1 : linux - security updateNessusDebian Local Security Checks
medium
137339Debian DLA-2242-1 : linux-4.9 security updateNessusDebian Local Security Checks
medium
137283Debian DLA-2241-2 : linux security updateNessusDebian Local Security Checks
medium
137128OracleVM 3.4 : Unbreakable / etc (OVMSA-2020-0019)NessusOracleVM Local Security Checks
high
137024EulerOS 2.0 SP5 : kernel (EulerOS-SA-2020-1606)NessusHuawei Local Security Checks
medium
136966Ubuntu 18.04 LTS / 19.10 : Linux kernel regression (USN-4369-2)NessusUbuntu Local Security Checks
high
136782SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1275-1) (MDSUM/RIDL) (MFBDS/RIDL/ZombieLoad) (MLPDS/RIDL) (MSBDS/Fallout)NessusSuSE Local Security Checks
critical
136759Ubuntu 18.04 LTS / 19.10 : Linux kernel vulnerabilities (USN-4369-1)NessusUbuntu Local Security Checks
high
136733Ubuntu 18.04 LTS : Linux kernel vulnerabilities (USN-4368-1)NessusUbuntu Local Security Checks
medium
136711Ubuntu 16.04 LTS : Linux kernel vulnerabilities (USN-4364-1)NessusUbuntu Local Security Checks
high
136710Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel vulnerabilities (USN-4363-1)NessusUbuntu Local Security Checks
high
136661SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1255-1)NessusSuSE Local Security Checks
critical
136485Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2020-5676)NessusOracle Linux Local Security Checks
medium
136388Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2020-5670)NessusOracle Linux Local Security Checks
high
136239EulerOS Virtualization for ARM 64 3.0.2.0 : kernel (EulerOS-SA-2020-1536)NessusHuawei Local Security Checks
critical
136168SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2020:1146-1)NessusSuSE Local Security Checks
high
136166SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1142-1)NessusSuSE Local Security Checks
high
136165SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1141-1)NessusSuSE Local Security Checks
high
136107Photon OS 1.0: Linux PHSA-2020-1.0-0290NessusPhotonOS Local Security Checks
high
136075SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2020:1123-1)NessusSuSE Local Security Checks
high
136026SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1119-1)NessusSuSE Local Security Checks
high
136025SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1118-1)NessusSuSE Local Security Checks
high
136022Oracle Linux 7 / 8 : Unbreakable Enterprise kernel (ELSA-2020-5663)NessusOracle Linux Local Security Checks
high
136006openSUSE Security Update : the Linux Kernel (openSUSE-2020-543)NessusSuSE Local Security Checks
high
135741EulerOS 2.0 SP8 : kernel (EulerOS-SA-2020-1508)NessusHuawei Local Security Checks
medium