What is CVE-2019-3701?

CVE-2019-3701 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.4 out of 10, classified as a Out-of-bounds Write flaw (CWE-787). CVE-2019-3701 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2019-3701?

CVE-2019-3701 has a CVSS score of 4.4 out of 10, rated Medium severity. The vector string is CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2019-3701?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2019-3701 patch availability.

Is CVE-2019-3701 actively exploited?

CVE-2019-3701 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Out-of-bounds Write (CWE-787)?

The product writes data past the end or before the beginning of the intended buffer. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/787.html

CVE-2019-3701

Medium

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.

Package Linux Kernel

Published 2019-01-03

Last modified 2024-11-21

CVSS version 3.0

Patch available

Awaiting data

CVSS 3.0 score

4.4

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Weakness type

CWE-787

CVE-2019-3701 is a Out-of-bounds Write vulnerability

What is Out-of-bounds Write?

The product writes data past the end or before the beginning of the intended buffer. Learn more on MITRE CWE

References

14 total

SUSE
https://bugzilla.suse.com/show_bug.cgi?id=1120386

Exploit Issue Tracking Patch Third Party Advisory
Kernel Git
https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=0aaa81377c5a01f686bcdb8c7a6929a7bf330c68

Mailing List Patch Vendor Advisory
Marc
https://marc.info/?l=linux-netdev&m=154651842302479&w=2

Patch Third Party Advisory
Marc
https://marc.info/?l=linux-netdev&m=154661373531512&w=2

Mailing List Patch Third Party Advisory
Lists
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00035.html

Showing 5 of 14 references View all on NVD

Details

CVE ID CVE-2019-3701

Severity Medium

CVSS score 4.4 / 10

CVSS version 3.0

Published 2019-01-03

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2019-3701?

CVE-2019-3701 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.4 out of 10 , classified as an Out-of-bounds Write flaw (CWE-787) . CVE-2019-3701 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2019-3701?

CVE-2019-3701 has a CVSS score of 4.4 out of 10, rated Medium severity (CVSS 3.0). The vector string is CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2019-3701?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2019-3701 patch availability.
Is CVE-2019-3701 actively exploited?

No. CVE-2019-3701 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.