CVE-2017-1000373

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Summary

CVECVE-2017-1000373
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2017-06-19 16:29:00 UTC
Updated2025-04-20 01:37:25 UTC
DescriptionThe OpenBSD qsort() function is recursive, and not randomized, an attacker can construct a pathological input array of N elements that causes qsort() to deterministically recurse N/4 times. This allows attackers to consume arbitrary amounts of stack memory and manipulate stack memory to assist in arbitrary code execution attacks. This affects OpenBSD 6.1 and possibly earlier versions.

Risk And Classification

Primary CVSS: v3.0 6.5 MEDIUM from [email protected]

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

Problem Types: CWE-400 | n/a

VersionSourceTypeScoreSeverityVector
3.0[email protected]Primary6.5MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
2.0[email protected]Primary6.4AV:N/AC:L/Au:N/C:N/I:P/A:P

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
Low

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
Partial

AV:N/AC:L/Au:N/C:N/I:P/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Openbsd Openbsd All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
OpenBSD CVE-2017-1000373 Denial of Service Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Third Party Advisory, VDB Entry
About the security content of tvOS 11 - Apple Support af854a3a-2127-422b-91ae-364da2661108 support.apple.com
Apple macOS/OS X Multiple Flaws Let Remote and Local Users Bypass Security and Deny Service, Local Users Obtain Potentially Sensitive Information, and Applications Gain Elevated Privileges - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com
src/lib/libc/stdlib/qsort.c - view - 1.15 af854a3a-2127-422b-91ae-364da2661108 cvsweb.openbsd.org Mitigation, Third Party Advisory
www.qualys.com/2017/06/19/stack-clash/stack-clash.txt af854a3a-2127-422b-91ae-364da2661108 www.qualys.com Third Party Advisory
OpenBSD - 'at Stack Clash' Local Privilege Escalation - OpenBSD local Exploit af854a3a-2127-422b-91ae-364da2661108 www.exploit-db.com
About the security content of macOS High Sierra 10.13 - Apple Support af854a3a-2127-422b-91ae-364da2661108 support.apple.com
About the security content of iOS 11 - Apple Support af854a3a-2127-422b-91ae-364da2661108 support.apple.com
About the security content of watchOS 4 - Apple Support af854a3a-2127-422b-91ae-364da2661108 support.apple.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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