Veracode Vulnerability DatabaseVERACODE:25337Denial Of Service (DoS)
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
nmap is vulnerable to denial of service (DoS). The vulnerability exists as 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.
References
lists.opensuse.org/opensuse-security-announce/2019-09/msg00073.html
lists.opensuse.org/opensuse-security-announce/2019-09/msg00075.html
github.com/AMatchandaHaystack/Research/blob/master/Nmap%26libsshDF
github.com/nmap/nmap/commit/350bbe0597d37ad67abe5fef8fba984707b4e9ad
github.com/nmap/nmap/issues/1077
github.com/nmap/nmap/issues/1227
seclists.org/nmap-announce/2019/0
seclists.org/nmap-dev/2018/q2/45
Related
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P