Medium severity · published Jun 19, 2017
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…
6.5
CVSS
13.4%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)13.4% · higher than 96% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
Openbsd · Openbsd
through 6.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-1000373
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-1000373
Third Party Advisory
http://www.securityfocus.com/bid/99177
www.securitytracker.com
http://www.securitytracker.com/id/1039427
Mitigation
https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/lib/libc/stdlib/qsort.c?rev=1.15&content-type=text/x-cvsweb-markup
support.apple.com
https://support.apple.com/HT208112
support.apple.com
https://support.apple.com/HT208113
support.apple.com
https://support.apple.com/HT208115
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