CVE-2021-29154

high
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

BPF JIT compilers in the Linux kernel through 5.11.12 have incorrect computation of branch displacements, allowing them to execute arbitrary code within the kernel context. This affects arch/x86/net/bpf_jit_comp.c and arch/x86/net/bpf_jit_comp32.c.

References

https://www.openwall.com/lists/oss-security/2021/04/08/1

https://news.ycombinator.com/item?id=26757760

https://lists.fedoraproject.org/archives/list/[email protected]/message/W5YFGIIF24475A2LNW3UWHW2SNCS3G7M/

http://packetstormsecurity.com/files/162434/Kernel-Live-Patch-Security-Notice-LSN-0076-1.html

https://security.netapp.com/advisory/ntap-20210604-0006/

https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html

https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html

Details

Source: MITRE

Published: 2021-04-08

Updated: 2021-06-23

Type: CWE-77

Risk Information

CVSS v2

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

Base Score: 7.8

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

Impact Score: 5.9

Exploitability Score: 1.8

Severity: HIGH

Tenable Plugins

View all (51 total)

IDNameProductFamilySeverity
153271EulerOS 2.0 SP2 : kernel (EulerOS-SA-2021-2392)NessusHuawei Local Security Checks
high
152978Oracle Linux 7 : kernel (ELSA-2021-3327)NessusOracle Linux Local Security Checks
high
152970CentOS 7 : kernel (CESA-2021:3327)NessusCentOS Local Security Checks
high
152950Scientific Linux Security Update : kernel on SL7.x x86_64 (2021:3327)NessusScientific Linux Local Security Checks
high
152935RHEL 7 : kernel (RHSA-2021:3327)NessusRed Hat Local Security Checks
high
152924RHEL 7 : kernel-rt (RHSA-2021:3328)NessusRed Hat Local Security Checks
high
152167SUSE SLES15 Security Update : kernel (Live Patch 15 for SLE 15 SP2) (SUSE-SU-2021:2577-1)NessusSuSE Local Security Checks
high
151897Slackware 14.2 : Slackware 14.2 kernel (SSA:2021-202-01)NessusSlackware Local Security Checks
high
151767EulerOS 2.0 SP5 : kernel (EulerOS-SA-2021-2221)NessusHuawei Local Security Checks
high
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
151618SUSE SLES11 Security Update : kernel (SUSE-SU-2021:14764-1)NessusSuSE Local Security Checks
high
151307EulerOS Virtualization for ARM 64 3.0.2.0 : kernel (EulerOS-SA-2021-2075)NessusHuawei Local Security Checks
high
151240EulerOS 2.0 SP9 : kernel (EulerOS-SA-2021-2062)NessusHuawei Local Security Checks
high
151238EulerOS 2.0 SP9 : kernel (EulerOS-SA-2021-2051)NessusHuawei Local Security Checks
high
151229EulerOS Virtualization 3.0.6.6 : kernel (EulerOS-SA-2021-2040)NessusHuawei Local Security Checks
high
151206SUSE SLES15 Security Update : kernel (Live Patch 0 for SLE 15 SP3) (SUSE-SU-2021:2198-1)NessusSuSE Local Security Checks
high
151042EulerOS 2.0 SP8 : kernel (EulerOS-SA-2021-1983)NessusHuawei Local Security Checks
high
150985Debian DLA-2689-1 : linux security updateNessusDebian Local Security Checks
high
150984Debian DLA-2690-1 : linux-4.19 security updateNessusDebian Local Security Checks
high
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
150783Oracle Linux 7 / 8 : Unbreakable Enterprise kernel-container (ELSA-2021-9307)NessusOracle Linux Local Security Checks
high
150778Oracle Linux 7 / 8 : Unbreakable Enterprise kernel (ELSA-2021-9306)NessusOracle Linux Local Security Checks
high
150313SUSE SLES12 Security Update : kernel (Live Patch 36 for SLE 12 SP3) (SUSE-SU-2021:1865-1)NessusSuSE Local Security Checks
high
150305SUSE SLES12 Security Update : kernel (Live Patch 38 for SLE 12 SP3) (SUSE-SU-2021:1870-1)NessusSuSE Local Security Checks
high
150271EulerOS Virtualization 2.9.1 : kernel (EulerOS-SA-2021-1967)NessusHuawei Local Security Checks
high
150253EulerOS Virtualization 2.9.0 : kernel (EulerOS-SA-2021-1971)NessusHuawei Local Security Checks
high
149892openSUSE Security Update : the Linux Kernel (openSUSE-2021-758)NessusSuSE Local Security Checks
critical
149872Amazon Linux AMI : kernel (ALAS-2021-1503)NessusAmazon Linux Local Security Checks
high
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
149633SUSE SLES12 Security Update : kernel (SUSE-SU-2021:1617-1)NessusSuSE Local Security Checks
high
149605openSUSE Security Update : the Linux Kernel (openSUSE-2021-579)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
149421Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2021-9222)NessusOracle Linux Local Security Checks
high
149420Oracle Linux 7 : Unbreakable Enterprise kernel-container (ELSA-2021-9223)NessusOracle Linux Local Security Checks
high
149294Photon OS 2.0: Linux PHSA-2021-2.0-0340NessusPhotonOS Local Security Checks
high
148919Amazon Linux 2 : kernel (ALAS-2021-1627)NessusAmazon Linux Local Security Checks
high
148901Photon OS 3.0: Linux PHSA-2021-3.0-0221NessusPhotonOS Local Security Checks
high
148823Photon OS 1.0: Linux PHSA-2021-1.0-0382NessusPhotonOS Local Security Checks
high
148815Photon OS 4.0: Linux PHSA-2021-4.0-0011NessusPhotonOS Local Security Checks
high
148753SUSE SLES12 Security Update : kernel (SUSE-SU-2021:1248-1)NessusSuSE Local Security Checks
high
148747SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2021:1238-1)NessusSuSE Local Security Checks
critical
148723Fedora 33 : kernel (2021-e71c033f88)NessusFedora Local Security Checks
high
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
148691Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel vulnerabilities (USN-4916-1)NessusUbuntu Local Security Checks
high
148690Ubuntu 18.04 LTS / 20.04 LTS / 20.10 : Linux kernel vulnerabilities (USN-4917-1)NessusUbuntu Local Security Checks
high
148494Ubuntu 20.04 LTS : Linux kernel (OEM) vulnerabilities (USN-4912-1)NessusUbuntu Local Security Checks
high