CVE-2019-3859
CRITICAL severity · CVSS 9.1 · Out-of-bounds read
9.1CVSS CRITICAL
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)6%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: http://www.openwall.com/lists/oss-security/2019/03/18/3 ↗
Additional information
- NVD record
- http://packetstormsecurity.com/files/152136/Slackware-Security-Advisory-libssh2-Updates.htmlPatch
- http://www.openwall.com/lists/oss-security/2019/03/18/3Patch
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3859Patch
- http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00102.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00103.htmlAdvisory
- http://www.securityfocus.com/bid/107485Advisory