SB2019092608 - OpenSUSE Linux update for nmap

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Main Vulnerability Database SB2019092608

SB2019092608 - OpenSUSE Linux update for nmap

Published: September 26, 2019

Security Bulletin ID SB2019092608
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Double Free (CVE-ID: CVE-2017-18594)

CWE-ID: CWE-415 - Double Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote attacker to perform denial of service (DoS) attack.

The vulnerability exists due to a boundary error when processing failed SSH connections in nse_libssh2.cc script in nmap. A remote attacker can trigger a double free error and perform a denial of service attack against the port scanner during scan process.


2) Stack-based buffer overflow (CVE-ID: CVE-2018-15173)

CWE-ID: CWE-121 - Stack-based buffer overflow

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote attacker to cause DoS condition on the target system.

The vulnerability exists due to stack-based buffer overflow when the -sV option is used. A remote unauthenticated attacker can supply a specially crafted TCP-based service, trigger memory corruption and cause the service to crash.


Remediation

Install update from vendor's website.

References