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Vulnerability Details : CVE-2021-29154

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.
Publish Date : 2021-04-08 Last Update Date : 2022-04-19
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- CVSS Scores & Vulnerability Types

CVSS Score
7.2
Confidentiality Impact Complete (There is total information disclosure, resulting in all system files being revealed.)
Integrity Impact Complete (There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the entire system being compromised.)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Execute Code
CWE ID 77

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2021:3327: kernel security and bug fix update (Important) oval:com.redhat.rhsa:def:20213327 unix
RHSA-2021:3328: kernel-rt security and bug fix update (Important) oval:com.redhat.rhsa:def:20213328 unix
RHSA-2022:1975: kernel-rt security and bug fix update (Important) oval:com.redhat.rhsa:def:20221975 unix
RHSA-2022:1988: kernel security, bug fix, and enhancement update (Important) oval:com.redhat.rhsa:def:20221988 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2021-29154

# Product Type Vendor Product Version Update Edition Language
1 OS Debian Debian Linux 9.0 * * * Version Details Vulnerabilities
2 OS Fedoraproject Fedora 33 * * * Version Details Vulnerabilities
3 OS Linux Linux Kernel * * * * Version Details Vulnerabilities
4 Application Netapp Cloud Backup - * * * Version Details Vulnerabilities
5 Application Netapp Hci Management Node - * * * Version Details Vulnerabilities
6 Application Netapp Solidfire - * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Debian Debian Linux 1
Fedoraproject Fedora 1
Linux Linux Kernel 1
Netapp Cloud Backup 1
Netapp Hci Management Node 1
Netapp Solidfire 1

- References For CVE-2021-29154

https://news.ycombinator.com/item?id=26757760
https://lists.fedoraproject.org/archives/list/[email protected]/message/W5YFGIIF24475A2LNW3UWHW2SNCS3G7M/
FEDORA FEDORA-2021-e71c033f88
https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html
MLIST [debian-lts-announce] 20210623 [SECURITY] [DLA 2689-1] linux security update
https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html
MLIST [debian-lts-announce] 20210623 [SECURITY] [DLA 2690-1] linux-4.19 security update
https://security.netapp.com/advisory/ntap-20210604-0006/ CONFIRM
http://packetstormsecurity.com/files/162434/Kernel-Live-Patch-Security-Notice-LSN-0076-1.html
https://www.openwall.com/lists/oss-security/2021/04/08/1

- Vulnerability Conditions

Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0

- Metasploit Modules Related To CVE-2021-29154

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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