CVE-2017-18594

nse_libssh2.cc in Nmap 7.70 is subject to a denial of service condition due to a double free when an SSH connection fails, as demonstrated by a leading \n character to ssh-brute.nse or ssh-auth-methods.nse.

CVSS v3.0 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3.0 : HIGH

Vector : AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://github.com/nmap/nmap/issues/1227	Exploit Third Party Advisory
https://seclists.org/nmap-dev/2018/q2/45	Mailing List Third Party Advisory
https://github.com/nmap/nmap/commit/350bbe0597d37ad67abe5fef8fba984707b4e9ad	Patch Third Party Advisory
https://github.com/nmap/nmap/issues/1077	Patch Third Party Advisory
https://seclists.org/nmap-announce/2019/0	Mailing List Third Party Advisory
https://github.com/AMatchandaHaystack/Research/blob/master/Nmap%26libsshDF	Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00075.html
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00073.html

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Configurations

Configuration 1 (hide)

cpe:2.3:a:nmap:nmap:7.70:*:*:*:*:*:*:*

Information

Published : 2019-08-28 17:15

Updated : 2019-09-26 05:15

NVD link : CVE-2017-18594

Mitre link : CVE-2017-18594

JSON object : View

CWE

CWE-415

Double Free

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Products Affected

nmap

nmap

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