CVE-2020-8835
Linux Kernel BPF Verifier Out-of-Bounds Vulnerability
Description
In the Linux kernel 5.5.0 and newer, the bpf verifier (kernel/bpf/verifier.c) did not properly restrict the register bounds for 32-bit operations, leading to out-of-bounds reads and writes in kernel memory. The vulnerability also affects the Linux 5.4 stable series, starting with v5.4.7, as the introducing commit was backported to that branch. This vulnerability was fixed in 5.6.1, 5.5.14, and 5.4.29. (issue is aka ZDI-CAN-10780)
INFO
Published Date :
April 2, 2020, 6:15 p.m.
Last Modified :
Nov. 21, 2024, 5:39 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
6.0
Exploitability Score :
1.1
Public PoC/Exploit Available at Github
CVE-2020-8835 has a 27 public PoC/Exploit
available at Github.
Go to the Public Exploits
tab to see the list.
Affected Products
The following products are affected by CVE-2020-8835
vulnerability.
Even if cvefeed.io
is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2020-8835
.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
C Shell Python Assembly Ruby Makefile Meson
Auto Root / Privilege Escalation Exploit
autoroot privilege privilege-escalation root
Shell
一些cve复现环境
Shell C
None
Shell
Linux privilege escalation exploits collection.
C Shell Python Assembly Ruby Makefile Meson
None
JavaScript C Dockerfile Shell
None
None
fuzz the linux kernel bpf verifier
Makefile C
None
C
Solution for EBPF challenge in Google CTF 2021
C
Formal verification example for CVE-2020-8835
Makefile Coq C
Automatic monitor github cve using Github Actions
Python
Linux Eelvation(持续更新)
cve-2021-3156 cve-2019-7304 cve-2019-13272 cve-2018-18955 cve-2018-1000001 cve-2018-17182 cve-2017-1000367 cve-2017-1000112 cve-2017-16995 cve-2017-16939 linux-kernel elevation cve-2021-4034 cve-2022-0847
C Shell Python Ruby Makefile HTML
None
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-8835
vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-8835
vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2021/07/20/1 Added Reference https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/commit/?id=f2d67fec0b43edce8c416101cdc52e71145b5fef Added Reference https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f2d67fec0b43edce8c416101cdc52e71145b5fef Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F7OONYGMSYBEFHLHZJK3GOI5Z553G4LD/ Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TF4PQZBEPNXDSK5DOBMW54OCLP25FTCD/ Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YXBWSHZ6DJIZVXKXGZPK6QPFCY7VKZEG/ Added Reference https://lore.kernel.org/bpf/20200330160324.15259-1-daniel%40iogearbox.net/T/ Added Reference https://security.netapp.com/advisory/ntap-20200430-0004/ Added Reference https://usn.ubuntu.com/4313-1/ Added Reference https://usn.ubuntu.com/usn/usn-4313-1 Added Reference https://www.openwall.com/lists/oss-security/2020/03/30/3 Added Reference https://www.thezdi.com/blog/2020/3/19/pwn2own-2020-day-one-results -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Added Reference Canonical Ltd. https://lore.kernel.org/bpf/20200330160324.15259-1-daniel%40iogearbox.net/T/ [No types assigned] Added Reference Canonical Ltd. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F7OONYGMSYBEFHLHZJK3GOI5Z553G4LD/ [No types assigned] Added Reference Canonical Ltd. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YXBWSHZ6DJIZVXKXGZPK6QPFCY7VKZEG/ [No types assigned] Added Reference Canonical Ltd. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TF4PQZBEPNXDSK5DOBMW54OCLP25FTCD/ [No types assigned] Removed Reference Canonical Ltd. https://lore.kernel.org/bpf/[email protected]/T/ Removed Reference Canonical Ltd. https://lists.fedoraproject.org/archives/list/[email protected]/message/F7OONYGMSYBEFHLHZJK3GOI5Z553G4LD/ Removed Reference Canonical Ltd. https://lists.fedoraproject.org/archives/list/[email protected]/message/YXBWSHZ6DJIZVXKXGZPK6QPFCY7VKZEG/ Removed Reference Canonical Ltd. https://lists.fedoraproject.org/archives/list/[email protected]/message/TF4PQZBEPNXDSK5DOBMW54OCLP25FTCD/ -
Reanalysis by [email protected]
Feb. 24, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.4.7 up to (excluding) 5.4.29 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5.0 up to (excluding) 5.5.14 OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.4.7 up to (excluding) 5.4.29 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5.0 up to (excluding) 5.5.14 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.6 up to (excluding) 5.6.1 -
Modified Analysis by [email protected]
Apr. 26, 2022
Action Type Old Value New Value Changed Reference Type http://www.openwall.com/lists/oss-security/2021/07/20/1 No Types Assigned http://www.openwall.com/lists/oss-security/2021/07/20/1 Exploit, Mailing List, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/TF4PQZBEPNXDSK5DOBMW54OCLP25FTCD/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/TF4PQZBEPNXDSK5DOBMW54OCLP25FTCD/ Mailing List, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/YXBWSHZ6DJIZVXKXGZPK6QPFCY7VKZEG/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/YXBWSHZ6DJIZVXKXGZPK6QPFCY7VKZEG/ Mailing List, Third Party Advisory Changed Reference Type https://security.netapp.com/advisory/ntap-20200430-0004/ No Types Assigned https://security.netapp.com/advisory/ntap-20200430-0004/ Third Party Advisory Changed CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5.0 up to (including) 5.5.13 OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.4.7 up to (excluding) 5.4.29 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5.0 up to (excluding) 5.5.14 Changed CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* OR *cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:a700s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:a700s:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:8300_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:8300:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:8700_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:8700:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:a400_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:a400:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:a320_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:a320:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:c190_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:c190:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:a220_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:a220:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:fas2720_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:fas2720:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:fas2750_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:fas2750:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:a800_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:a800:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h300e:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h500e:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h700e:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h610c_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h610c:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h610s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h610s:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h615c_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h615c:-:*:*:*:*:*:*:* -
CWE Remap by [email protected]
Jul. 21, 2021
Action Type Old Value New Value Changed CWE CWE-119 CWE-125 CWE-787 -
CVE Modified by [email protected]
Jul. 20, 2021
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2021/07/20/1 [No Types Assigned] -
CVE Modified by [email protected]
Apr. 30, 2020
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20200430-0004/ [No Types Assigned] -
CVE Modified by [email protected]
Apr. 16, 2020
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/TF4PQZBEPNXDSK5DOBMW54OCLP25FTCD/ [No Types Assigned] -
CVE Modified by [email protected]
Apr. 07, 2020
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/YXBWSHZ6DJIZVXKXGZPK6QPFCY7VKZEG/ [No Types Assigned] -
Initial Analysis by [email protected]
Apr. 06, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:C/I:C/A:C) Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/commit/?id=f2d67fec0b43edce8c416101cdc52e71145b5fef No Types Assigned https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/commit/?id=f2d67fec0b43edce8c416101cdc52e71145b5fef Patch, Vendor Advisory Changed Reference Type https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f2d67fec0b43edce8c416101cdc52e71145b5fef No Types Assigned https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f2d67fec0b43edce8c416101cdc52e71145b5fef Patch, Vendor Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/F7OONYGMSYBEFHLHZJK3GOI5Z553G4LD/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/F7OONYGMSYBEFHLHZJK3GOI5Z553G4LD/ Mailing List, Third Party Advisory Changed Reference Type https://lore.kernel.org/bpf/[email protected]/T/ No Types Assigned https://lore.kernel.org/bpf/[email protected]/T/ Patch, Vendor Advisory Changed Reference Type https://usn.ubuntu.com/4313-1/ No Types Assigned https://usn.ubuntu.com/4313-1/ Third Party Advisory Changed Reference Type https://usn.ubuntu.com/usn/usn-4313-1 No Types Assigned https://usn.ubuntu.com/usn/usn-4313-1 Third Party Advisory Changed Reference Type https://www.openwall.com/lists/oss-security/2020/03/30/3 No Types Assigned https://www.openwall.com/lists/oss-security/2020/03/30/3 Mailing List, Patch, Third Party Advisory Changed Reference Type https://www.thezdi.com/blog/2020/3/19/pwn2own-2020-day-one-results No Types Assigned https://www.thezdi.com/blog/2020/3/19/pwn2own-2020-day-one-results Third Party Advisory Added CWE NIST CWE-119 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5.0 up to (including) 5.5.13 Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Apr. 05, 2020
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/F7OONYGMSYBEFHLHZJK3GOI5Z553G4LD/ [No Types Assigned] -
CVE Modified by [email protected]
Apr. 05, 2020
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/4313-1/ [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-8835
is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2020-8835
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.33 }} 0.25%
score
0.70855
percentile