VDB-100471 · CVE-2017-8065 · BID 97994

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

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 4.9.x/4.10.11. It has been rated as critical. This affects an unknown function of the file crypto/ccm.c. This manipulation causes memory corruption. This vulnerability is handled as CVE-2017-8065. It is possible to launch the attack on the local host. There is not any exploit available. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 4.9.x/4.10.11 (Operating System) and classified as critical. Affected by this vulnerability is an unknown function of the file crypto/ccm.c. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

crypto/ccm.c in the Linux kernel 4.9.x and 4.10.x through 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 released 04/23/2017 (oss-sec). It is possible to read the advisory at openwall.com. This vulnerability is known as CVE-2017-8065 since 04/23/2017. Attacking locally is a requirement. The successful exploitation requires a single authentication. Technical details of the vulnerability are known, but there is no available exploit.

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.

Upgrading to version 4.10.12 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be patching the affected component.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 97994†). Entries connected to this vulnerability are available at VDB-100467, VDB-100468, VDB-100470 and VDB-100472. Be aware that VulDB is the high quality 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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day 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 🔍
12/02/2022 +2049 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: 3b30460c5b0ed762be75a004e924ec3f8711e032
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-8065 (🔍)
GCVE (CVE): GCVE-0-2017-8065
GCVE (VulDB): GCVE-100-100471
SecurityFocus: 97994 - Linux Kernel 'crypto/ccm.c' Local Denial of Service Vulnerability
OSVDB: - CVE-2017-8065 - Linux - Memory Corruption Issue

See also: 🔍

Entryinfo

Created: 04/24/2017 00:06
Updated: 12/02/2022 08:07
Changes: 04/24/2017 00:06 (70), 12/02/2022 08:07 (4)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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