Out-of-bounds Read Affecting libssh2 package, versions <1.4.3-4.1+deb8u2
Snyk CVSS
Attack Complexity
Low
Confidentiality
High
Availability
High
Threat Intelligence
EPSS
3.32% (92nd
percentile)
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Test your applications- Snyk ID SNYK-DEBIAN8-LIBSSH2-340731
- published 17 Mar 2019
- disclosed 25 Mar 2019
Introduced: 17 Mar 2019
CVE-2019-3861 Open this link in a new tabHow to fix?
Upgrade Debian:8
libssh2
to version 1.4.3-4.1+deb8u2 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 Debian
.
See How to fix?
for Debian:8
relevant fixed versions and status.
An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the way SSH packets with a padding length value greater than the packet length are parsed. 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://security-tracker.debian.org/tracker/CVE-2019-3861
- https://seclists.org/bugtraq/2019/Apr/25
- https://www.debian.org/security/2019/dsa-4431
- https://lists.debian.org/debian-lts-announce/2019/03/msg00032.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/
- https://www.libssh2.org/CVE-2019-3861.html
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
- https://security.netapp.com/advisory/ntap-20190327-0005/
- http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.html
- https://access.redhat.com/errata/RHSA-2019:2136
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3861
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2019-3861
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/