Detections
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RHEL 7 : libssh2 (RHSA-2019:1884)
critical Nessus Plugin ID 127622
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Synopsis
The remote Red Hat host is missing a security update for libssh2.Description
The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2019:1884 advisory.The libssh2 packages provide a library that implements the SSH2 protocol.
Security Fix(es):
* libssh2: Out-of-bounds memory comparison with specially crafted message channel request (CVE-2019-3862)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Solution
Update the RHEL libssh2 package based on the guidance in RHSA-2019:1884.See Also
http://www.nessus.org/u?85f23f7d
https://access.redhat.com/errata/RHSA-2019:1884
https://access.redhat.com/security/updates/classification/#moderate
Plugin Details
Severity: Critical
ID: 127622
File Name: redhat-RHSA-2019-1884.nasl
Version: 1.8
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 8/12/2019
Updated: 11/6/2024
Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.2
Vendor
Vendor Severity: Moderate
CVSS v2
Risk Factor: Medium
Base Score: 6.4
Temporal Score: 4.7
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:P
CVSS Score Source: CVE-2019-3862
CVSS v3
Risk Factor: Critical
Base Score: 9.1
Temporal Score: 7.9
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:redhat:enterprise_linux:libssh2, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:libssh2-devel, p-cpe:/a:redhat:enterprise_linux:libssh2-docs
Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu
Exploit Ease: No known exploits are available
Patch Publication Date: 7/29/2019
Vulnerability Publication Date: 3/21/2019
Reference Information
CVE: CVE-2019-3862