CVE-2020-11494
"Linux Kernel slcan can_frame Uninitialized Data Information Disclosure"
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.
INFO
Published Date :
April 2, 2020, 9:15 p.m.
Last Modified :
April 29, 2022, 1:26 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
0.8
Affected Products
The following products are affected by CVE-2020-11494
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-2020-11494.
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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-11494 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-11494 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 [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Apr. 29, 2022
Action Type Old Value New Value Changed Reference Type http://packetstormsecurity.com/files/159565/Kernel-Live-Patch-Security-Notice-LSN-0072-1.html No Types Assigned http://packetstormsecurity.com/files/159565/Kernel-Live-Patch-Security-Notice-LSN-0072-1.html Third Party Advisory, VDB Entry Changed Reference Type https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=08fadc32ce6239dc75fd5e869590e29bc62bbc28 No Types Assigned https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=08fadc32ce6239dc75fd5e869590e29bc62bbc28 Mailing List, Patch, Vendor Advisory Changed Reference Type https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html No Types Assigned https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html Mailing List, Third Party Advisory Changed Reference Type https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html No Types Assigned https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html Mailing List, Third Party Advisory Changed Reference Type https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html No Types Assigned https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html Mailing List, Third Party Advisory Changed Reference Type https://usn.ubuntu.com/4363-1/ No Types Assigned https://usn.ubuntu.com/4363-1/ Third Party Advisory Changed Reference Type https://usn.ubuntu.com/4364-1/ No Types Assigned https://usn.ubuntu.com/4364-1/ Third Party Advisory Changed Reference Type https://usn.ubuntu.com/4368-1/ No Types Assigned https://usn.ubuntu.com/4368-1/ Third Party Advisory Changed Reference Type https://usn.ubuntu.com/4369-1/ No Types Assigned https://usn.ubuntu.com/4369-1/ Third Party Advisory Changed Reference Type https://www.debian.org/security/2020/dsa-4698 No Types Assigned https://www.debian.org/security/2020/dsa-4698 Third Party Advisory Changed CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (including) 5.6.2 OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 3.16 up to (including) 5.6.2 Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:* -
CWE Remap by [email protected]
Jul. 21, 2021
Action Type Old Value New Value Changed CWE CWE-200 CWE-908 CWE-909 -
CVE Modified by [email protected]
Jan. 04, 2021
Action Type Old Value New Value Changed Description An issue was discovered in slc_bump in drivers/net/can/slcan.c in the Linux kernel 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. 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. Added Reference https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=08fadc32ce6239dc75fd5e869590e29bc62bbc28 [No Types Assigned] -
CVE Modified by [email protected]
Oct. 14, 2020
Action Type Old Value New Value Added Reference http://packetstormsecurity.com/files/159565/Kernel-Live-Patch-Security-Notice-LSN-0072-1.html [No Types Assigned] -
CVE Modified by [email protected]
Jun. 10, 2020
Action Type Old Value New Value Added Reference https://www.debian.org/security/2020/dsa-4698 [No Types Assigned] -
CVE Modified by [email protected]
Jun. 10, 2020
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html [No Types Assigned] Added Reference https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html [No Types Assigned] -
CVE Modified by [email protected]
Jun. 10, 2020
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html [No Types Assigned] -
CVE Modified by [email protected]
May. 30, 2020
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/4369-1/ [No Types Assigned] -
CVE Modified by [email protected]
May. 28, 2020
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/4363-1/ [No Types Assigned] -
CVE Modified by [email protected]
May. 24, 2020
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/4368-1/ [No Types Assigned] -
CVE Modified by [email protected]
May. 21, 2020
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/4364-1/ [No Types Assigned] -
Modified Analysis by [email protected]
May. 04, 2020
Action Type Old Value New Value Removed CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Added CVSS V3.1 NIST AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00035.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00035.html 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 Added CPE Configuration OR *cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* -
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. 23, 2020
Action Type Old Value New Value Added Reference http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00035.html [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:P/I:N/A:N) Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Changed Reference Type https://github.com/torvalds/linux/commit/b9258a2cece4ec1f020715fe3554bc2e360f6264 No Types Assigned https://github.com/torvalds/linux/commit/b9258a2cece4ec1f020715fe3554bc2e360f6264 Patch, Third Party Advisory Added CWE NIST CWE-200 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (including) 5.6.2
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-11494 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-2020-11494
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.05 }} 0.00%
score
0.15402
percentile