CVE-2019-3701
Linux kernel Can CAN frame modificationrule allows writing arbitrary content beyond CAN controller's I/O memory
Description
An issue was discovered in can_can_gw_rcv in net/can/gw.c in the Linux kernel through 4.19.13. The CAN frame modification rules allow bitwise logical operations that can be also applied to the can_dlc field. The privileged user "root" with CAP_NET_ADMIN can create a CAN frame modification rule that makes the data length code a higher value than the available CAN frame data size. In combination with a configured checksum calculation where the result is stored relatively to the end of the data (e.g. cgw_csum_xor_rel) the tail of the skb (e.g. frag_list pointer in skb_shared_info) can be rewritten which finally can cause a system crash. Because of a missing check, the CAN drivers may write arbitrary content beyond the data registers in the CAN controller's I/O memory when processing can-gw manipulated outgoing frames.
INFO
Published Date :
Jan. 3, 2019, 4:29 p.m.
Last Modified :
Sept. 3, 2019, 12:15 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
0.8
Affected Products
The following products are affected by CVE-2019-3701
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-2019-3701.
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-2019-3701 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2019-3701 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 -
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] -
CVE Modified by [email protected]
Sep. 03, 2019
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/4115-1/ [No Types Assigned] Added Reference https://usn.ubuntu.com/4118-1/ [No Types Assigned] -
Modified Analysis by [email protected]
May. 15, 2019
Action Type Old Value New Value Changed CVSS V2 (AV:N/AC:M/Au:N/C:N/I:N/A:C) (AV:L/AC:L/Au:N/C:N/I:N/A:C) Changed CVSS V3 AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html No Types Assigned https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html Mailing List, Third Party Advisory Changed Reference Type https://support.f5.com/csp/article/K17957133 No Types Assigned https://support.f5.com/csp/article/K17957133 Third Party Advisory Changed Reference Type https://usn.ubuntu.com/3932-2/ No Types Assigned https://usn.ubuntu.com/3932-2/ Third Party Advisory Changed Reference Type https://marc.info/?l=linux-netdev&m=154661373531512&w=2 No Types Assigned https://marc.info/?l=linux-netdev&m=154661373531512&w=2 Mailing List, Patch, Third Party Advisory Changed Reference Type https://usn.ubuntu.com/3932-1/ No Types Assigned https://usn.ubuntu.com/3932-1/ Third Party Advisory Changed Reference Type https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=0aaa81377c5a01f686bcdb8c7a6929a7bf330c68 No Types Assigned https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=0aaa81377c5a01f686bcdb8c7a6929a7bf330c68 Mailing List, Patch, Vendor Advisory Changed Reference Type https://lists.debian.org/debian-lts-announce/2019/05/msg00002.html No Types Assigned https://lists.debian.org/debian-lts-announce/2019/05/msg00002.html Mailing List, Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* -
CVE Modified by [email protected]
May. 03, 2019
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2019/05/msg00002.html [No Types Assigned] -
CVE Modified by [email protected]
Apr. 24, 2019
Action Type Old Value New Value Changed Description An issue was discovered in can_can_gw_rcv in net/can/gw.c in the Linux kernel through 4.19.13. The CAN frame modification rules allow bitwise logical operations that can be also applied to the can_dlc field. Because of a missing check, the CAN drivers may write arbitrary content beyond the data registers in the CAN controller's I/O memory when processing can-gw manipulated outgoing frames. This is related to cgw_csum_xor_rel. An unprivileged user can trigger a system crash (general protection fault). An issue was discovered in can_can_gw_rcv in net/can/gw.c in the Linux kernel through 4.19.13. The CAN frame modification rules allow bitwise logical operations that can be also applied to the can_dlc field. The privileged user "root" with CAP_NET_ADMIN can create a CAN frame modification rule that makes the data length code a higher value than the available CAN frame data size. In combination with a configured checksum calculation where the result is stored relatively to the end of the data (e.g. cgw_csum_xor_rel) the tail of the skb (e.g. frag_list pointer in skb_shared_info) can be rewritten which finally can cause a system crash. Because of a missing check, the CAN drivers may write arbitrary content beyond the data registers in the CAN controller's I/O memory when processing can-gw manipulated outgoing frames. Added Reference https://marc.info/?l=linux-netdev&m=154661373531512&w=2 [No Types Assigned] Added Reference https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=0aaa81377c5a01f686bcdb8c7a6929a7bf330c68 [No Types Assigned] -
CVE Modified by [email protected]
Apr. 12, 2019
Action Type Old Value New Value Added Reference https://support.f5.com/csp/article/K17957133 [No Types Assigned] -
CVE Modified by [email protected]
Apr. 03, 2019
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/3932-2/ [No Types Assigned] Added Reference https://usn.ubuntu.com/3932-1/ [No Types Assigned] -
CVE Modified by [email protected]
Apr. 01, 2019
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html [No Types Assigned] -
Modified Analysis by [email protected]
Mar. 29, 2019
Action Type Old Value New Value Changed Reference Type https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html No Types Assigned https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html Mailing List, Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Mar. 27, 2019
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html [No Types Assigned] -
Initial Analysis by [email protected]
Feb. 11, 2019
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:M/Au:N/C:N/I:N/A:C) Added CVSS V3 AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Changed Reference Type http://www.securityfocus.com/bid/106443 No Types Assigned http://www.securityfocus.com/bid/106443 Third Party Advisory, VDB Entry Changed Reference Type https://bugzilla.suse.com/show_bug.cgi?id=1120386 No Types Assigned https://bugzilla.suse.com/show_bug.cgi?id=1120386 Exploit, Issue Tracking, Patch, Third Party Advisory Changed Reference Type https://marc.info/?l=linux-netdev&m=154651842302479&w=2 No Types Assigned https://marc.info/?l=linux-netdev&m=154651842302479&w=2 Patch, Third Party Advisory Added CWE CWE-787 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (including) 4.19.13 -
CVE Modified by [email protected]
Jan. 04, 2019
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/106443 [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-2019-3701 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-2019-3701
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.07 }} 0.00%
score
0.29992
percentile