CVE-2021-28038

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 the Linux kernel through 5.11.3, as used with Xen PV. A certain part of the netback driver lacks necessary treatment of errors such as failed memory allocations (as a result of changes to the handling of grant mapping errors). A host OS denial of service may occur during misbehavior of a networking frontend driver. NOTE: this issue exists because of an incomplete fix for CVE-2021-26931.

References

http://www.openwall.com/lists/oss-security/2021/03/05/1

http://xenbits.xen.org/xsa/advisory-367.html

https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html

https://lists.debian.org/debian-lts-announce/2021/03/msg00035.html

https://security.netapp.com/advisory/ntap-20210409-0001/

Details

Source: MITRE

Published: 2021-03-05

Updated: 2021-04-09

Type: CWE-770

Risk Information

CVSS v2

Base Score: 4.9

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

Impact Score: 6.9

Exploitability Score: 3.9

Severity: MEDIUM

CVSS v3

Base Score: 6.5

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

Impact Score: 4

Exploitability Score: 2

Severity: MEDIUM

Tenable Plugins

View all (32 total)

IDNameProductFamilySeverity
151756openSUSE 15 Security Update : kernel (openSUSE-SU-2021:1977-1)NessusSuSE Local Security Checks
critical
151730openSUSE 15 Security Update : kernel (openSUSE-SU-2021:1975-1)NessusSuSE Local Security Checks
critical
150927SUSE SLES15 Security Update : kernel (SUSE-SU-2021:1975-1)NessusSuSE Local Security Checks
critical
150901SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2021:1977-1)NessusSuSE Local Security Checks
critical
150463OracleVM 3.4 : Unbreakable / etc (OVMSA-2021-0016)NessusOracleVM Local Security Checks
high
150292Ubuntu 20.04 LTS / 20.10 : Linux kernel vulnerabilities (USN-4984-1)NessusUbuntu Local Security Checks
medium
149892openSUSE Security Update : the Linux Kernel (openSUSE-2021-758)NessusSuSE Local Security Checks
critical
149717SUSE SLES15 Security Update : kernel (SUSE-SU-2021:1624-1)NessusSuSE Local Security Checks
high
149716SUSE SLES12 Security Update : kernel (SUSE-SU-2021:1623-1)NessusSuSE Local Security Checks
high
149661Ubuntu 18.04 LTS / 20.04 LTS : Linux kernel (Raspberry Pi) vulnerabilities (USN-4945-2)NessusUbuntu Local Security Checks
high
149633SUSE SLES12 Security Update : kernel (SUSE-SU-2021:1617-1)NessusSuSE Local Security Checks
high
149491SUSE SLES12 Security Update : kernel (SUSE-SU-2021:1596-1)NessusSuSE Local Security Checks
high
149462SUSE SLES15 Security Update : kernel (SUSE-SU-2021:1573-1)NessusSuSE Local Security Checks
high
149416Ubuntu 18.04 LTS / 20.04 LTS : Linux kernel vulnerabilities (USN-4945-1)NessusUbuntu Local Security Checks
high
149410Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel vulnerabilities (USN-4946-1)NessusUbuntu Local Security Checks
medium
149357Oracle Linux 7 / 8 : Unbreakable Enterprise kernel (ELSA-2021-9220)NessusOracle Linux Local Security Checks
high
149356Oracle Linux 7 / 8 : Unbreakable Enterprise kernel-container (ELSA-2021-9221)NessusOracle Linux Local Security Checks
high
149296Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2021-9215)NessusOracle Linux Local Security Checks
high
148747SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2021:1238-1)NessusSuSE Local Security Checks
critical
148700SUSE SLES12 Security Update : kernel (SUSE-SU-2021:1210-1)NessusSuSE Local Security Checks
high
148698SUSE SLES15 Security Update : kernel (SUSE-SU-2021:1211-1)NessusSuSE Local Security Checks
critical
148674Citrix Hypervisor <= 8.2 LTSR DoS (CTX306565)NessusMisc.
high
148509SUSE SLES12 Security Update : kernel (SUSE-SU-2021:1175-1)NessusSuSE Local Security Checks
medium
148498Ubuntu 16.04 LTS : Linux kernel vulnerabilities (USN-4904-1)NessusUbuntu Local Security Checks
medium
148496Ubuntu 20.04 LTS : Linux kernel (OEM) vulnerabilities (USN-4911-1)NessusUbuntu Local Security Checks
high
148453Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2021-9172)NessusOracle Linux Local Security Checks
high
148452Oracle Linux 7 : Unbreakable Enterprise kernel-container (ELSA-2021-9175)NessusOracle Linux Local Security Checks
high
148438openSUSE Security Update : the Linux Kernel (openSUSE-2021-532)NessusSuSE Local Security Checks
critical
148254Debian DLA-2610-1 : linux-4.19 security updateNessusDebian Local Security Checks
high
147919Amazon Linux AMI : kernel (ALAS-2021-1487)NessusAmazon Linux Local Security Checks
high
147914Amazon Linux 2 : kernel (ALAS-2021-1616)NessusAmazon Linux Local Security Checks
high
147532Debian DLA-2586-1 : linux security updateNessusDebian Local Security Checks
high