CVE-2019-3858
MEDIUM severity · CVSS 5 · Out-of-bounds read
5CVSS MEDIUM
Summary
An out of bounds read flaw was discovered in libssh2 before 1.8.1 when a specially crafted SFTP packet is received from the server. 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 complexityHigh
Privileges requiredNone
User interactionRequired
Confidentiality impactLow
Integrity impactLow
Availability impactLow
Exploit probability (EPSS)6%
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
Recommendation
Apply the vendor fix in your normal patch cycle. 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://www.openwall.com/lists/oss-security/2019/03/18/3Patch
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3858Patch
- http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.htmlAdvisory
- http://packetstormsecurity.com/files/152136/Slackware-Security-Advisory-libssh2-Updates.htmlAdvisory
- http://www.securityfocus.com/bid/107485Advisory
- https://access.redhat.com/errata/RHSA-2019:2136
- https://lists.debian.org/debian-lts-announce/2019/03/msg00032.htmlAdvisory