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slackwareSlackware Linux ProjectSSA-2016-057-01
HistoryFeb 26, 2016 - 11:30 p.m.

[slackware-security] libssh

2016-02-2623:30:31
Slackware Linux Project
www.slackware.com
10

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

0.004 Low

EPSS

Percentile

73.2%

New libssh packages are available for Slackware 14.0, 14.1, and -current to
fix a security issue.

Here are the details from the Slackware 14.1 ChangeLog:

patches/packages/libssh-0.7.3-i486-1_slack14.1.txz: Upgraded.
Fixed weak key generation. Due to a bug in the ephemeral secret key
generation for the diffie-hellman-group1 and diffie-hellman-group14
methods, ephemeral secret keys of size 128 bits are generated, instead
of the recommended sizes of 1024 and 2048 bits, giving a practical
security of 63 bits.
For more information, see:
https://vulners.com/cve/CVE-2016-0739
(* Security fix *)

Where to find the new packages:

Thanks to the friendly folks at the OSU Open Source Lab
(http://osuosl.org) for donating FTP and rsync hosting
to the Slackware project! :-)

Also see the “Get Slack” section on http://slackware.com for
additional mirror sites near you.

Updated package for Slackware 14.0:
ftp://ftp.slackware.com/pub/slackware/slackware-14.0/patches/packages/libssh-0.7.3-i486-1_slack14.0.txz

Updated package for Slackware x86_64 14.0:
ftp://ftp.slackware.com/pub/slackware/slackware64-14.0/patches/packages/libssh-0.7.3-x86_64-1_slack14.0.txz

Updated package for Slackware 14.1:
ftp://ftp.slackware.com/pub/slackware/slackware-14.1/patches/packages/libssh-0.7.3-i486-1_slack14.1.txz

Updated package for Slackware x86_64 14.1:
ftp://ftp.slackware.com/pub/slackware/slackware64-14.1/patches/packages/libssh-0.7.3-x86_64-1_slack14.1.txz

Updated package for Slackware -current:
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/l/libssh-0.7.3-i586-1.txz

Updated package for Slackware x86_64 -current:
ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/l/libssh-0.7.3-x86_64-1.txz

MD5 signatures:

Slackware 14.0 package:
76526494e39f1ddeb5a385a2913eb105 libssh-0.7.3-i486-1_slack14.0.txz

Slackware x86_64 14.0 package:
b21ad5638e9eb16080fe7231a38f368a libssh-0.7.3-x86_64-1_slack14.0.txz

Slackware 14.1 package:
698ee24d452a5b40d022f5c15eb10fb1 libssh-0.7.3-i486-1_slack14.1.txz

Slackware x86_64 14.1 package:
63a3b5c088bbdc6906b369c8df73e4da libssh-0.7.3-x86_64-1_slack14.1.txz

Slackware -current package:
553ffb7b4506007207da4bcdce3e23d4 l/libssh-0.7.3-i586-1.txz

Slackware x86_64 -current package:
2647645e60db0e669a398664a91c4ecd l/libssh-0.7.3-x86_64-1.txz

Installation instructions:

Upgrade the package as root:
> upgradepkg libssh-0.7.3-i486-1_slack14.1.txz

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

0.004 Low

EPSS

Percentile

73.2%