CVE-2017-18367

libseccomp-golang: mishandling of multiple argument rules leading to a bypass of intended access restrictions

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

libseccomp-golang 0.9.0 and earlier incorrectly generates BPFs that OR multiple arguments rather than ANDing them. A process running under a restrictive seccomp filter that specified multiple syscall arguments could bypass intended access restrictions by specifying a single matching argument.

libseccomp-golang versión 0.9.0 y anteriores, BPF generan incorrectamente múltiples argumentos OR en lugar de ANDing. Un proceso que se realiza bajo un filtro seccomp restrictivo que especificó múltiples argumentos de syscall podría omitir las restricciones de acceso previstas al especificar un único argumento coincidente.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-04-24 CVE Reserved
2019-04-24 CVE Published
2024-08-05 CVE Updated
2024-09-14 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation
CWE-305: Authentication Bypass by Primary Weakness

CAPEC

References (9)

URL	Tag	Source
https://lists.debian.org/debian-lts-announce/2020/08/msg00016.html	Mailing List

URL	Date	SRC

URL	Date	SRC
http://www.openwall.com/lists/oss-security/2019/04/25/6	2020-10-14
https://github.com/seccomp/libseccomp-golang/commit/06e7a29f36a34b8cf419aeb87b979ee508e58f9e	2020-10-14
https://github.com/seccomp/libseccomp-golang/issues/22	2020-10-14

URL	Date	SRC
https://access.redhat.com/errata/RHSA-2019:4087	2020-10-14
https://access.redhat.com/errata/RHSA-2019:4090	2020-10-14
https://usn.ubuntu.com/4574-1	2020-10-14
https://access.redhat.com/security/cve/CVE-2017-18367	2020-06-18
https://bugzilla.redhat.com/show_bug.cgi?id=1706826	2020-06-18

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Libseccomp-golang Project Search vendor "Libseccomp-golang Project"		Libseccomp-golang Search vendor "Libseccomp-golang Project" for product "Libseccomp-golang"				<= 0.9.0 Search vendor "Libseccomp-golang Project" for product "Libseccomp-golang" and version " <= 0.9.0"		-		Affected