CVE-2017-2671

Linux Kernel - 'ping' Local Denial of Service

Severity Score

5.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The ping_unhash function in net/ipv4/ping.c in the Linux kernel through 4.10.8 is too late in obtaining a certain lock and consequently cannot ensure that disconnect function calls are safe, which allows local users to cause a denial of service (panic) by leveraging access to the protocol value of IPPROTO_ICMP in a socket system call.

En LightDM en versiones hasta 1.22.0, un problema de directorio transversal en debian/guest-account.sh permite a atacantes locales allows local attackers poseer ubicaciones de ruta de directorio arbitrarias y escalar privilegios a raíz cuando el usuario invitado se cierra.

A race condition leading to a NULL pointer dereference was found in the Linux kernel's Link Layer Control implementation. A local attacker with access to ping sockets could use this flaw to crash the system.

The Linux kernel suffers from a ping local denial of service vulnerability.

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2016-12-01 CVE Reserved
2017-04-05 CVE Published
2017-06-08 First Exploit
2023-03-08 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CAPEC

References (15)

URL	Tag	Source
http://openwall.com/lists/oss-security/2017/04/04/8	Mailing List
http://www.securityfocus.com/bid/97407	Third Party Advisory
https://github.com/danieljiang0415/android_kernel_crash_poc	Third Party Advisory
https://twitter.com/danieljiang0415/status/845116665184497664	Third Party Advisory

URL	Date	SRC
https://www.exploit-db.com/exploits/42135	2024-08-05
https://github.com/homjxi0e/CVE-2017-2671	2017-06-08

URL	Date	SRC
https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/net/ipv4/ping.c?id=43a6684519ab0a6c52024b5e25322476cabad893	2023-02-12
https://github.com/torvalds/linux/commit/43a6684519ab0a6c52024b5e25322476cabad893	2023-02-12

URL	Date	SRC
https://access.redhat.com/errata/RHSA-2017:1842	2023-02-12
https://access.redhat.com/errata/RHSA-2017:2077	2023-02-12
https://access.redhat.com/errata/RHSA-2017:2669	2023-02-12
https://access.redhat.com/errata/RHSA-2018:1854	2023-02-12
https://usn.ubuntu.com/3754-1	2023-02-12
https://access.redhat.com/security/cve/CVE-2017-2671	2018-06-19
https://bugzilla.redhat.com/show_bug.cgi?id=1436649	2018-06-19

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				<= 4.10.8 Search vendor "Linux" for product "Linux Kernel" and version " <= 4.10.8"		-		Affected