CentOS ProjectCESA-2019:2136libssh2 security update
6.4 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:N/A:P
9.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
0.033 Low
EPSS
Percentile
91.4%
CentOS Errata and Security Advisory CESA-2019:2136
The libssh2 packages provide a library that implements the SSH2 protocol.
The following packages have been upgraded to a later upstream version: libssh2 (1.8.0). (BZ#1592784)
Security Fix(es):
-
libssh2: Zero-byte allocation with a specially crafted SFTP packed leading to an out-of-bounds read (CVE-2019-3858)
-
libssh2: Out-of-bounds reads with specially crafted SSH packets (CVE-2019-3861)
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.
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.7 Release Notes linked from the References section.
Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-cr-announce/2019-August/032234.html
Affected packages:
libssh2
libssh2-devel
libssh2-docs
Upstream details at:
https://access.redhat.com/errata/RHSA-2019:2136
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| CentOS | 7 | i686 | libssh2 | < 1.8.0-3.el7 | libssh2-1.8.0-3.el7.i686.rpm |
| CentOS | 7 | x86_64 | libssh2 | < 1.8.0-3.el7 | libssh2-1.8.0-3.el7.x86_64.rpm |
| CentOS | 7 | i686 | libssh2-devel | < 1.8.0-3.el7 | libssh2-devel-1.8.0-3.el7.i686.rpm |
| CentOS | 7 | x86_64 | libssh2-devel | < 1.8.0-3.el7 | libssh2-devel-1.8.0-3.el7.x86_64.rpm |
| CentOS | 7 | noarch | libssh2-docs | < 1.8.0-3.el7 | libssh2-docs-1.8.0-3.el7.noarch.rpm |
Related
6.4 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:N/A:P
9.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
0.033 Low
EPSS
Percentile
91.4%