CVE-2019-3701MEDIUM
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.
References
http://www.securityfocus.com/bid/106443
https://bugzilla.suse.com/show_bug.cgi?id=1120386
https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html
https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html
https://lists.debian.org/debian-lts-announce/2019/05/msg00002.html
https://marc.info/?l=linux-netdev&m=154651842302479&w=2
https://marc.info/?l=linux-netdev&m=154661373531512&w=2
https://support.f5.com/csp/article/K17957133
https://usn.ubuntu.com/3932-1/
https://usn.ubuntu.com/3932-2/
Details
Source: MITRE
Published: 2019-01-03
Updated: 2019-09-03
Type: CWE-787
Risk Information
CVSS v2.0
Base Score: 4.9
Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C
Impact Score: 6.9
Exploitability Score: 3.9
Severity: MEDIUM
CVSS v3.0
Base Score: 4.4
Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Impact Score: 3.6
Exploitability Score: 0.8
Severity: MEDIUM
Vulnerable Software
Configuration 1
OR
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to 4.19.13 (inclusive)
Configuration 2
OR
Configuration 3
OR
Tenable Plugins
| ID | Name | Product | Family | Severity |
|---|---|---|---|---|
| 145201 | EulerOS 2.0 SP3 : kernel (EulerOS-SA-2021-1079) | Nessus | Huawei Local Security Checks | high |
| 138272 | SUSE SLES15 Security Update : kernel (SUSE-SU-2020:1663-1) | Nessus | SuSE Local Security Checks | critical |
| 136782 | SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1275-1) (MDSUM/RIDL) (MFBDS/RIDL/ZombieLoad) (MLPDS/RIDL) (MSBDS/Fallout) | Nessus | SuSE Local Security Checks | critical |
| 136661 | SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1255-1) | Nessus | SuSE Local Security Checks | critical |
| 136168 | SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2020:1146-1) | Nessus | SuSE Local Security Checks | medium |
| 136166 | SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1142-1) | Nessus | SuSE Local Security Checks | high |
| 136165 | SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1141-1) | Nessus | SuSE Local Security Checks | medium |
| 136075 | SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2020:1123-1) | Nessus | SuSE Local Security Checks | medium |
| 136026 | SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1119-1) | Nessus | SuSE Local Security Checks | medium |
| 136025 | SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1118-1) | Nessus | SuSE Local Security Checks | high |
| 136006 | openSUSE Security Update : the Linux Kernel (openSUSE-2020-543) | Nessus | SuSE Local Security Checks | medium |
| 134387 | EulerOS 2.0 SP8 : kernel (EulerOS-SA-2020-1186) | Nessus | Huawei Local Security Checks | critical |
| 128680 | Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel regression (USN-4115-2) | Nessus | Ubuntu Local Security Checks | critical |
| 128478 | Ubuntu 16.04 LTS / 18.04 LTS : linux-aws vulnerabilities (USN-4118-1) | Nessus | Ubuntu Local Security Checks | critical |
| 128475 | Ubuntu 16.04 LTS / 18.04 LTS : linux, linux-azure, linux-gcp, linux-gke-4.15, linux-hwe, linux-kvm, (USN-4115-1) | Nessus | Ubuntu Local Security Checks | critical |
| 124972 | EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1519) | Nessus | Huawei Local Security Checks | high |
| 124834 | EulerOS Virtualization 3.0.1.0 : kernel (EulerOS-SA-2019-1512) | Nessus | Huawei Local Security Checks | high |
| 124637 | OracleVM 3.4 : Unbreakable / etc (OVMSA-2019-0014) | Nessus | OracleVM Local Security Checks | high |
| 124595 | Debian DLA-1771-1 : linux-4.9 security update | Nessus | Debian Local Security Checks | high |
| 124048 | Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2019-4612) | Nessus | Oracle Linux Local Security Checks | high |
| 123961 | Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2019-4600) | Nessus | Oracle Linux Local Security Checks | medium |
| 123727 | EulerOS Virtualization 2.5.3 : kernel (EulerOS-SA-2019-1259) | Nessus | Huawei Local Security Checks | high |
| 123702 | EulerOS Virtualization 2.5.4 : kernel (EulerOS-SA-2019-1234) | Nessus | Huawei Local Security Checks | low |
| 123681 | Ubuntu 14.04 LTS : linux-lts-xenial, linux-aws vulnerabilities (USN-3932-2) | Nessus | Ubuntu Local Security Checks | high |
| 123680 | Ubuntu 16.04 LTS : linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities (USN-3932-1) | Nessus | Ubuntu Local Security Checks | high |
| 123631 | Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2019-4596) | Nessus | Oracle Linux Local Security Checks | high |
| 123605 | EulerOS 2.0 SP2 : kernel (EulerOS-SA-2019-1131) | Nessus | Huawei Local Security Checks | high |
| 123420 | Debian DLA-1731-2 : linux regression update (Spectre) | Nessus | Debian Local Security Checks | high |
| 122201 | EulerOS 2.0 SP5 : kernel (EulerOS-SA-2019-1028) | Nessus | Huawei Local Security Checks | high |
| 121505 | Slackware 14.2 : Slackware 14.2 kernel (SSA:2019-030-01) | Nessus | Slackware Local Security Checks | high |
| 121171 | Fedora 29 : kernel / kernel-headers / kernel-tools (2019-b0f7a7b74b) | Nessus | Fedora Local Security Checks | medium |
| 121170 | Fedora 28 : kernel / kernel-headers / kernel-tools (2019-337484d88b) | Nessus | Fedora Local Security Checks | medium |