CVE-2019-3859

CVSS 9.1 CRITICALEPSS 6.3%CWE-125

An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the _libssh2_packet_require and _libssh2_packet_requirev functions. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Affected products

The libssh2 Project · libssh2

public PoCs found — 1

cve_referencepacketstormsecurity.com/files/152136/Slackware-Security-Advisory-libssh2-Updates.htmlunverified

⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

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References

http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.html http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00102.html http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00103.html http://packetstormsecurity.com/files/152136/Slackware-Security-Advisory-libssh2-Updates.html https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3859 https://lists.debian.org/debian-lts-announce/2019/03/msg00032.html https://lists.debian.org/debian-lts-announce/2019/04/msg00006.html https://lists.debian.org/debian-lts-announce/2019/07/msg00024.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XCWEA5ZCLKRDUK62QVVYMFWLWKOPX3LO/https://seclists.org/bugtraq/2019/Apr/25