AmazonALAS-2016-683Medium: libssh2
5.9 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:N/A:N
0.005 Low
EPSS
Percentile
77.2%
Issue Overview:
A type confusion issue was found in the way libssh2 generated ephemeral secrets for the diffie-hellman-group1 and diffie-hellman-group14 key exchange methods. This would cause an SSHv2 Diffie-Hellman handshake to use significantly less secure random parameters.
Affected Packages:
libssh2
Issue Correction:
Run yum update libssh2 to update your system.
New Packages:
i686:
libssh2-1.4.2-2.13.amzn1.i686
libssh2-devel-1.4.2-2.13.amzn1.i686
libssh2-debuginfo-1.4.2-2.13.amzn1.i686
libssh2-docs-1.4.2-2.13.amzn1.i686
src:
libssh2-1.4.2-2.13.amzn1.src
x86_64:
libssh2-docs-1.4.2-2.13.amzn1.x86_64
libssh2-1.4.2-2.13.amzn1.x86_64
libssh2-devel-1.4.2-2.13.amzn1.x86_64
libssh2-debuginfo-1.4.2-2.13.amzn1.x86_64
Additional References
Red Hat: CVE-2016-0787
Mitre: CVE-2016-0787
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Amazon Linux | 1 | i686 | libssh2 | < 1.4.2-2.13.amzn1 | libssh2-1.4.2-2.13.amzn1.i686.rpm |
| Amazon Linux | 1 | i686 | libssh2-devel | < 1.4.2-2.13.amzn1 | libssh2-devel-1.4.2-2.13.amzn1.i686.rpm |
| Amazon Linux | 1 | i686 | libssh2-debuginfo | < 1.4.2-2.13.amzn1 | libssh2-debuginfo-1.4.2-2.13.amzn1.i686.rpm |
| Amazon Linux | 1 | i686 | libssh2-docs | < 1.4.2-2.13.amzn1 | libssh2-docs-1.4.2-2.13.amzn1.i686.rpm |
| Amazon Linux | 1 | x86_64 | libssh2-docs | < 1.4.2-2.13.amzn1 | libssh2-docs-1.4.2-2.13.amzn1.x86_64.rpm |
| Amazon Linux | 1 | x86_64 | libssh2 | < 1.4.2-2.13.amzn1 | libssh2-1.4.2-2.13.amzn1.x86_64.rpm |
| Amazon Linux | 1 | x86_64 | libssh2-devel | < 1.4.2-2.13.amzn1 | libssh2-devel-1.4.2-2.13.amzn1.x86_64.rpm |
| Amazon Linux | 1 | x86_64 | libssh2-debuginfo | < 1.4.2-2.13.amzn1 | libssh2-debuginfo-1.4.2-2.13.amzn1.x86_64.rpm |
Related
5.9 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:N/A:N
0.005 Low
EPSS
Percentile
77.2%