Lucene search

K
debianDebianDEBIAN:DLA-426-1:18954
HistoryFeb 23, 2016 - 1:16 p.m.

[SECURITY] [DLA 426-1] libssh2 security update

2016-02-2313:16:47
lists.debian.org
9

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack 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

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

6 Medium

AI Score

Confidence

High

0.005 Low

EPSS

Percentile

77.6%

Package        : libssh2
Version        : 1.2.6-1+deb6u2
CVE ID         : CVE-2016-0787

Andreas Schneider reported that libssh2, an SSH2 protocol
implementation used by many applications, did not generate
sufficiently long Diffie-Hellman secrets.

This vulnerability could be exploited by an eavesdropper to decrypt
and to intercept SSH sessions.

For the oldoldstable distribution (squeeze), this has been fixed in
version 1.2.6-1+deb6u2.  Although the changelog refers to 'sha256',
this version only supports DH SHA-1 key exchange and it is that key
exchange method that has been fixed.

For the oldstable (wheezy) and stable (jessie) distributions, this
will be fixed soon.


Ben Hutchings - Debian developer, member of Linux kernel and LTS teams

Attachment:
signature.asc
Description: This is a digitally signed message part

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack 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

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

6 Medium

AI Score

Confidence

High

0.005 Low

EPSS

Percentile

77.6%