Out-of-bounds Read Affecting libssh2 package, versions <1.8.0-2.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published15 Jul 2026
- disclosed21 Mar 2019
Introduced: 21 Mar 2019
CVE-2019-3858 (opens in a new tab)How to fix?
Upgrade Echo:latest libssh2 to version 1.8.0-2.1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libssh2 package and not the libssh2 package as distributed by Echo.
See How to fix? for Echo:latest relevant fixed versions and status.
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.
References
- https://advisory.echohq.com/cve/CVE-2019-3858
- https://www.cve.org/CVERecord?id=CVE-2019-3858
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XCWEA5ZCLKRDUK62QVVYMFWLWKOPX3LO/
- http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.html
- http://packetstormsecurity.com/files/152136/Slackware-Security-Advisory-libssh2-Updates.html
- http://www.openwall.com/lists/oss-security/2019/03/18/3
- http://www.securityfocus.com/bid/107485
- https://access.redhat.com/errata/RHSA-2019:2136
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3858
- https://lists.debian.org/debian-lts-announce/2019/03/msg00032.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
- https://seclists.org/bugtraq/2019/Mar/25
- https://security.netapp.com/advisory/ntap-20190327-0005/
- https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2019-767
- https://www.debian.org/security/2019/dsa-4431
- https://www.libssh2.org/CVE-2019-3858.html
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html