CVE-2017-18594

Summary

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.

Affected Software

Weaknesses

• n/a

ADP Enrichment

CVE Program Container

Additional References

• https://seclists.org/nmap-dev/2018/q2/45
• https://github.com/nmap/nmap/issues/1227
• https://github.com/nmap/nmap/commit/350bbe0597d37ad67abe5fef8fba984707b4e9ad
• https://github.com/nmap/nmap/issues/1077
• https://github.com/AMatchandaHaystack/Research/blob/master/Nmap%26libsshDF
• https://seclists.org/nmap-announce/2019/0
• http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00073.html
• http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00075.html

References

• https://seclists.org/nmap-dev/2018/q2/45
• https://github.com/nmap/nmap/issues/1227
• https://github.com/nmap/nmap/commit/350bbe0597d37ad67abe5fef8fba984707b4e9ad
• https://github.com/nmap/nmap/issues/1077
• https://github.com/AMatchandaHaystack/Research/blob/master/Nmap%26libsshDF
• https://seclists.org/nmap-announce/2019/0
• http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00073.html
• http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00075.html

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