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redhatRedHatRHSA-2019:2136
HistoryAug 06, 2019 - 8:05 a.m.

(RHSA-2019:2136) Moderate: libssh2 security, bug fix, and enhancement update

2019-08-0608:05:02
access.redhat.com
74

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

6.4 Medium

CVSS2

Access Vector

NETWORK

Access 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

0.033 Low

EPSS

Percentile

91.2%

JSON

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.

OSVersionArchitecturePackageVersionFilename
RedHat7s390xlibssh2< 1.8.0-3.el7libssh2-1.8.0-3.el7.s390x.rpm
RedHat7i686libssh2-debuginfo< 1.8.0-3.el7libssh2-debuginfo-1.8.0-3.el7.i686.rpm
RedHat7x86_64libssh2< 1.8.0-3.el7libssh2-1.8.0-3.el7.x86_64.rpm
RedHat7noarchlibssh2-docs< 1.8.0-3.el7libssh2-docs-1.8.0-3.el7.noarch.rpm
RedHat7s390xlibssh2-devel< 1.8.0-3.el7libssh2-devel-1.8.0-3.el7.s390x.rpm
RedHat7ppc64libssh2-debuginfo< 1.8.0-3.el7libssh2-debuginfo-1.8.0-3.el7.ppc64.rpm
RedHat7ppclibssh2-debuginfo< 1.8.0-3.el7libssh2-debuginfo-1.8.0-3.el7.ppc.rpm
RedHat7ppclibssh2< 1.8.0-3.el7libssh2-1.8.0-3.el7.ppc.rpm
RedHat7s390libssh2-devel< 1.8.0-3.el7libssh2-devel-1.8.0-3.el7.s390.rpm
RedHat7ppc64lelibssh2-debuginfo< 1.8.0-3.el7libssh2-debuginfo-1.8.0-3.el7.ppc64le.rpm
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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

6.4 Medium

CVSS2

Access Vector

NETWORK

Access 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

0.033 Low

EPSS

Percentile

91.2%

JSON
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