CVE-2015-3146

The (1) SSH_MSG_NEWKEYS and (2) SSH_MSG_KEXDH_REPLY packet handlers in package_cb.c in libssh before 0.6.5 do not properly validate state, which allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a crafted SSH packet.

CVSS v3.0 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3.0 : HIGH

Vector : AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158013.html
https://www.libssh.org/security/advisories/CVE-2015-3146.txt	Vendor Advisory
https://www.libssh.org/2015/04/30/libssh-0-6-5-security-and-bugfix-release/	Vendor Advisory
http://www.ubuntu.com/usn/USN-2912-1
https://git.libssh.org/projects/libssh.git/commit/?h=libssh-0.6.5&id=94f6955fbaee6fda9385a23e505497efe21f5b4f
http://lists.fedoraproject.org/pipermail/package-announce/2015-July/161802.html
http://www.debian.org/security/2016/dsa-3488

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Configurations

Configuration 1 (hide)

cpe:2.3:a:libssh:libssh:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:canonical:ubuntu_linux:12.04::::lts:::
	cpe:2.3:o:canonical:ubuntu_linux:15.10:::::::*
	cpe:2.3:o:canonical:ubuntu_linux:14.04::::lts:::

Configuration 3 (hide)

OR	cpe:2.3:o:debian:debian_linux:8.0:::::::*
	cpe:2.3:o:debian:debian_linux:7.0:::::::*

Configuration 4 (hide)

OR	cpe:2.3:o:fedoraproject:fedora:21:::::::*
	cpe:2.3:o:fedoraproject:fedora:22:::::::*

Information

Published : 2016-04-13 10:59

Updated : 2016-04-20 08:07

NVD link : CVE-2015-3146

Mitre link : CVE-2015-3146

JSON object : View

CWE

NVD-CWE-Other

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Products Affected

debian

debian_linux

canonical

ubuntu_linux

fedoraproject

fedora

libssh

libssh

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