5.9

CVE-2016-0739: canonical ubuntu_linux

CVSS: 5.9v3.0MediumModified
AliasesMGASA-2016-0082SUSE-SU-2016:0622-1SUSE-SU-2016:0625-1
Published 13-04-2016Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2016-0739 is a medium (CVSS 5.9) vulnerability in canonical ubuntu_linux. EPSS estimates a 2.43% chance of exploitation in the next 30 days, higher than 84% of scored vulnerabilities.

Overall risk
24/100
0100
Low · default modelHow is this calculated?
CVSS score
5.9/10
010
Medium · v3.0 (NVD)
EPSS score
2.43%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
USN-2912-1

Timeline

  1. 13-04-2016
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

libssh before 0.7.3 improperly truncates ephemeral secrets generated for the (1) diffie-hellman-group1 and (2) diffie-hellman-group14 key exchange methods to 128 bits, which makes it easier for man-in-the-middle attackers to decrypt or intercept SSH sessions via unspecified vectors, aka a "bits/bytes confusion bug."

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

2.43%

Chance of exploitation in the next 30 days

Percentile

84%

Versus all other CVEs

30-day change

0.00 pp

From 2.43% on 19-09-2026

19-09-202619-10-2026
EPSS score
2.43%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Suse8 products
  • libssh&distro=SUSE Linux Enterprise Desktop 11 SP4< 0.2-5.22.1
  • libssh&distro=SUSE Linux Enterprise Desktop 12< 0.6.3-11.1
  • libssh&distro=SUSE Linux Enterprise Desktop 12 SP1< 0.6.3-11.1
  • libssh&distro=SUSE Linux Enterprise Software Development Kit 11 SP4< 0.2-5.22.1
  • libssh&distro=SUSE Linux Enterprise Software Development Kit 12< 0.6.3-11.1
Redhat4 products
  • enterprise_linuxEOL7.0
  • libssh< 0:0.7.1-2.el7
  • libssh-debuginfo< 0:0.7.1-2.el7
  • libssh-devel< 0:0.7.1-2.el7
Debian2 products
  • libssh< 0.6.3-4.3 | < 0.4.5-3+squeeze3 | < 0.5.4-1+deb7u3 | < 0.6.3-4+deb8u2
  • debian_linuxEOL7.0 | 8.0
Canonical1 product
Fedoraproject1 product
Libssh1 product
Mageia1 product
  • libssh< 0.6.5-1.1.mga5
Ubuntu1 product
  • libssh< 0.6.1-0ubuntu3.3 | < 0.6.3-4.2ubuntu1

8 vendors · 19 products

References

27 links
Show all 27 references