Linux Kernel up to 4.9.x/4.10.11 virtio_console.c memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Linux Kernel up to 4.9.x/4.10.11. Affected is an unknown function of the file drivers/char/virtio_console.c. Performing a manipulation results in memory corruption. This vulnerability was named CVE-2017-8067. The attack needs to be approached locally. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 4.9.x/4.10.11 (Operating System). It has been classified as problematic. This affects some unknown functionality of the file drivers/char/virtio_console.c. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

drivers/char/virtio_console.c in the Linux kernel 4.9.x and 4.10.x before 4.10.12 interacts incorrectly with the CONFIG_VMAP_STACK option, which allows local users to cause a denial of service (system crash or memory corruption) or possibly have unspecified other impact by leveraging use of more than one virtual page for a DMA scatterlist.

The bug was discovered 04/16/2017. The weakness was presented 04/23/2017 (oss-sec). The advisory is shared at openwall.com. This vulnerability is uniquely identified as CVE-2017-8067 since 04/23/2017. An attack has to be approached locally. A authentication is required for exploitation. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 7 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 100668 (Ubuntu 17.04 : linux, linux-raspi2 vulnerabilities (USN-3314-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 351446 (Amazon Linux Security Advisory for kernel: ALAC2012-2018-012).

Upgrading to version 4.10.12 eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (100668) and SecurityFocus (BID 97997†). See VDB-96555, VDB-96560, VDB-96561 and VDB-96562 for similar entries. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 100668
Nessus Name: Ubuntu 17.04 : linux, linux-raspi2 vulnerabilities (USN-3314-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 841810
OpenVAS Name: Ubuntu Update for linux USN-3314-1
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Kernel 4.10.12
Patch: git.kernel.org

Timelineinfo

04/16/2017 🔍
04/23/2017 +7 days 🔍
04/23/2017 +0 days 🔍
04/23/2017 +0 days 🔍
04/23/2017 +0 days 🔍
04/23/2017 +0 days 🔍
06/07/2017 +45 days 🔍
06/07/2017 +0 days 🔍
12/02/2022 +2004 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: USN-3314-1
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-8067 (🔍)
GCVE (CVE): GCVE-0-2017-8067
GCVE (VulDB): GCVE-100-100473
SecurityFocus: 97997 - Linux Kernel 'drivers/char/virtio_console.c' Local Denial of Service Vulnerability
OSVDB: - CVE-2017-8067 - Linux - Memory Corruption Issue

See also: 🔍

Entryinfo

Created: 04/24/2017 00:06
Updated: 12/02/2022 08:10
Changes: 04/24/2017 00:06 (84), 12/02/2022 08:09 (5), 12/02/2022 08:10 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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