VDB-100476 · CVE-2017-8070 · BID 98011

Linux Kernel up to 4.9.10 drivers/net/usb/catc.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 described as critical has been identified in Linux Kernel up to 4.9.10. This affects an unknown part of the file drivers/net/usb/catc.c. The manipulation results in memory corruption. This vulnerability is identified as CVE-2017-8070. The attack is only possible with local access. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical has been found in Linux Kernel up to 4.9.10 (Operating System). Affected is an unknown code block of the file drivers/net/usb/catc.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. CVE summarizes:

drivers/net/usb/catc.c in the Linux kernel 4.9.x before 4.9.11 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 released 04/23/2017 (oss-sec). The advisory is shared for download at openwall.com. This vulnerability is traded as CVE-2017-8070 since 04/23/2017. The attack needs to be approached locally. The requirement for exploitation is a authentication. There are known technical details, 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 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 4.9.11 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 98011†). Entries connected to this vulnerability are available at VDB-100467, VDB-100468, VDB-100470 and VDB-100471. Once again VulDB remains the best source for 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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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 4.9.11
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 🔍
08/25/2024 +2681 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: 2d6a0e9de03ee658a9adc3bfb2f0ca55dff1e478
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-8070 (🔍)
GCVE (CVE): GCVE-0-2017-8070
GCVE (VulDB): GCVE-100-100476
SecurityFocus: 98011 - Linux Kernel 'drivers/net/usb/catc.c' Local Denial of Service Vulnerability
OSVDB: - CVE-2017-8070 - Linux - Memory Corruption Issue

See also: 🔍

Entryinfo

Created: 04/24/2017 00:06
Updated: 08/25/2024 21:54
Changes: 04/24/2017 00:06 (69), 12/02/2022 08:20 (5), 08/25/2024 21:54 (16)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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