Linux Kernel 3.x TCP Stack TCP SYN Packet resource management

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability has been found in Linux Kernel 3.x and classified as problematic. Affected is an unknown function of the component TCP Stack. The manipulation as part of TCP SYN Packet leads to resource management. This vulnerability is listed as CVE-2017-5972. The attack may be initiated remotely. In addition, an exploit is available.

Detailsinfo

A vulnerability was found in Linux Kernel 3.x (Operating System) and classified as problematic. This issue affects an unknown part of the component TCP Stack. The manipulation as part of a TCP SYN Packet leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is availability. The summary by CVE is:

The TCP stack in the Linux kernel 3.x does not properly implement a SYN cookie protection mechanism for the case of a fast network connection, which allows remote attackers to cause a denial of service (CPU consumption) by sending many TCP SYN packets, as demonstrated by an attack against the kernel-3.10.0 package in CentOS Linux 7.

The bug was discovered 02/12/2017. The weakness was presented 02/14/2017 (Website). The advisory is shared at cxsecurity.com. The identification of this vulnerability is CVE-2017-5972 since 02/12/2017. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available.

The exploit is available at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $5k-$25k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Exploit-DB (41350) and SecurityFocus (BID 96231†). See VDB-96952 and VDB-96951 for similar entries. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.1

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/12/2017 🔍
02/12/2017 +0 days 🔍
02/12/2017 +0 days 🔍
02/14/2017 +2 days 🔍
02/14/2017 +0 days 🔍
02/14/2017 +0 days 🔍
12/20/2024 +2866 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: cxsecurity.com
Status: Not defined

CVE: CVE-2017-5972 (🔍)
GCVE (CVE): GCVE-0-2017-5972
GCVE (VulDB): GCVE-100-96953
SecurityFocus: 96231 - Linux Kernel CVE-2017-5972 Denial of Service Vulnerability
OSVDB: - CVE-2017-5972 - Linux - Denial of Service Issue

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 02/14/2017 16:21
Updated: 12/20/2024 13:21
Changes: 02/14/2017 16:21 (62), 09/02/2020 10:31 (7), 12/20/2024 13:21 (19)
Complete: 🔍
Cache ID: 216:6BC:103

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