Vulnerability Details CVE-2017-1000373
The 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.161
EPSS Ranking 94.4%
CVSS Severity
CVSS v3 Score 6.5
CVSS v2 Score 6.4
References
- http://www.securityfocus.com/bid/99177
- http://www.securitytracker.com/id/1039427
- https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/lib/libc/stdlib/qsort.c?rev=1.15&content-type=text/x-cvsweb-markup
- https://support.apple.com/HT208112
- https://support.apple.com/HT208113
- https://support.apple.com/HT208115
- https://support.apple.com/HT208144
- https://www.exploit-db.com/exploits/42271/
- https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt
- http://www.securityfocus.com/bid/99177
- http://www.securitytracker.com/id/1039427
- https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/lib/libc/stdlib/qsort.c?rev=1.15&content-type=text/x-cvsweb-markup
- https://support.apple.com/HT208112
- https://support.apple.com/HT208113
- https://support.apple.com/HT208115
- https://support.apple.com/HT208144
- https://www.exploit-db.com/exploits/42271/
- https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt
Products affected by CVE-2017-1000373
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cpe:2.3:o:openbsd:openbsd:-
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cpe:2.3:o:openbsd:openbsd:2.0
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cpe:2.3:o:openbsd:openbsd:2.1
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cpe:2.3:o:openbsd:openbsd:2.2
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cpe:2.3:o:openbsd:openbsd:2.3
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cpe:2.3:o:openbsd:openbsd:2.4
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cpe:2.3:o:openbsd:openbsd:2.5
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cpe:2.3:o:openbsd:openbsd:2.6
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cpe:2.3:o:openbsd:openbsd:2.7
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cpe:2.3:o:openbsd:openbsd:2.8
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cpe:2.3:o:openbsd:openbsd:2.9
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cpe:2.3:o:openbsd:openbsd:3.0
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cpe:2.3:o:openbsd:openbsd:3.1
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cpe:2.3:o:openbsd:openbsd:3.2
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cpe:2.3:o:openbsd:openbsd:3.3
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cpe:2.3:o:openbsd:openbsd:3.4
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cpe:2.3:o:openbsd:openbsd:3.5
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cpe:2.3:o:openbsd:openbsd:3.6
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cpe:2.3:o:openbsd:openbsd:3.7
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cpe:2.3:o:openbsd:openbsd:3.8
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cpe:2.3:o:openbsd:openbsd:3.9
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cpe:2.3:o:openbsd:openbsd:4.0
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cpe:2.3:o:openbsd:openbsd:4.1
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cpe:2.3:o:openbsd:openbsd:4.2
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cpe:2.3:o:openbsd:openbsd:4.3
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cpe:2.3:o:openbsd:openbsd:4.4
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cpe:2.3:o:openbsd:openbsd:4.5
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cpe:2.3:o:openbsd:openbsd:4.6
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cpe:2.3:o:openbsd:openbsd:4.7
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cpe:2.3:o:openbsd:openbsd:4.8
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cpe:2.3:o:openbsd:openbsd:4.9
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cpe:2.3:o:openbsd:openbsd:5.0
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cpe:2.3:o:openbsd:openbsd:5.1
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cpe:2.3:o:openbsd:openbsd:5.2
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cpe:2.3:o:openbsd:openbsd:5.3
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cpe:2.3:o:openbsd:openbsd:5.4
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cpe:2.3:o:openbsd:openbsd:5.5
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cpe:2.3:o:openbsd:openbsd:5.6
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cpe:2.3:o:openbsd:openbsd:5.7
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cpe:2.3:o:openbsd:openbsd:5.8
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cpe:2.3:o:openbsd:openbsd:5.9
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cpe:2.3:o:openbsd:openbsd:6.0
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cpe:2.3:o:openbsd:openbsd:6.1