Upstream information

CVE-2015-5600 at MITRE

Description

The kbdint_next_device function in auth2-chall.c in sshd in OpenSSH through 6.9 does not properly restrict the processing of keyboard-interactive devices within a single connection, which makes it easier for remote attackers to conduct brute-force attacks or cause a denial of service (CPU consumption) via a long and duplicative list in the ssh -oKbdInteractiveDevices option, as demonstrated by a modified client that provides a different password for each pam element on this list.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 8.5
Vector AV:N/AC:L/Au:N/C:P/I:N/A:C
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact Complete
SUSE Bugzilla entries: 1009988 [REOPENED], 1074631 [IN_PROGRESS], 938746 [RESOLVED / FIXED], 943006 [RESOLVED / FIXED], 943007 [RESOLVED], 943010 [RESOLVED / FIXED], 943504, 945985 [RESOLVED / FIXED], 948086, 954457 [IN_PROGRESS], 957883 [NEW], 996040 [RESOLVED / FIXED]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Linux Enterprise Desktop 11 SP3
  • openssh >= 6.2p2-0.21.1
  • openssh-askpass >= 6.2p2-0.21.1
  • openssh-askpass-gnome >= 6.2p2-0.21.3
Patchnames:
sledsp3-openssh-12096
SUSE Linux Enterprise Desktop 11 SP4
  • openssh >= 6.6p1-13.1
  • openssh-askpass-gnome >= 6.6p1-13.3
  • openssh-helpers >= 6.6p1-13.1
Patchnames:
sledsp4-openssh-12119
SUSE Linux Enterprise Desktop 12
  • openssh >= 6.6p1-29.1
  • openssh-askpass-gnome >= 6.6p1-29.1
  • openssh-helpers >= 6.6p1-29.1
Patchnames:
SUSE-SLE-DESKTOP-12-2015-526
SUSE Linux Enterprise Desktop 12 SP1
  • openssh >= 6.6p1-29.1
  • openssh-helpers >= 6.6p1-29.1
Patchnames:
SUSE Linux Enterprise Desktop 12 SP1 GA openssh
SUSE Linux Enterprise Desktop 12 SP2
  • openssh >= 7.2p2-55.1
  • openssh-helpers >= 7.2p2-55.1
Patchnames:
SUSE Linux Enterprise Desktop 12 SP2 GA openssh
SUSE Linux Enterprise Desktop 12 SP3
  • openssh >= 7.2p2-69.1
  • openssh-helpers >= 7.2p2-69.1
Patchnames:
SUSE Linux Enterprise Desktop 12 SP3 GA openssh
SUSE Linux Enterprise Server 11 SP2-LTSS
  • openssh >= 5.1p1-41.69.1
  • openssh-askpass >= 5.1p1-41.69.1
  • openssh-askpass-gnome >= 5.1p1-41.69.4
Patchnames:
slessp2-openssh-12168
SUSE Linux Enterprise Server 11 SP3
  • openssh >= 6.2p2-0.21.1
  • openssh-askpass >= 6.2p2-0.21.1
  • openssh-askpass-gnome >= 6.2p2-0.21.3
Patchnames:
slessp3-openssh-12096
SUSE Linux Enterprise Server 11 SP4
  • openssh >= 6.6p1-13.1
  • openssh-askpass-gnome >= 6.6p1-13.3
  • openssh-fips >= 6.6p1-13.1
  • openssh-helpers >= 6.6p1-13.1
Patchnames:
slessp4-openssh-12119
SUSE Linux Enterprise Server 11-SECURITY
  • openssh-openssl1 >= 6.6p1-10.1
  • openssh-openssl1-helpers >= 6.6p1-10.1
Patchnames:
SUSE Linux Enterprise Server 11-SECURITY GA openssh-openssl1
SUSE Linux Enterprise Server 12
  • openssh >= 6.6p1-29.1
  • openssh-askpass-gnome >= 6.6p1-29.1
  • openssh-fips >= 6.6p1-29.1
  • openssh-helpers >= 6.6p1-29.1
Patchnames:
SUSE-SLE-SERVER-12-2015-526
SUSE Linux Enterprise Server 12 SP1
  • openssh >= 6.6p1-29.1
  • openssh-fips >= 6.6p1-29.1
  • openssh-helpers >= 6.6p1-29.1
Patchnames:
SUSE Linux Enterprise Server 12 SP1 GA openssh
SUSE Linux Enterprise Server 12 SP2
  • openssh >= 7.2p2-55.1
  • openssh-fips >= 7.2p2-55.1
  • openssh-helpers >= 7.2p2-55.1
Patchnames:
SUSE Linux Enterprise Server 12 SP2 GA openssh
SUSE Linux Enterprise Server 12 SP3
  • openssh >= 7.2p2-69.1
  • openssh-fips >= 7.2p2-69.1
  • openssh-helpers >= 7.2p2-69.1
Patchnames:
SUSE Linux Enterprise Server 12 SP3 GA openssh
SUSE Linux Enterprise Server for Raspberry Pi 12 SP2
  • openssh >= 7.2p2-55.1
  • openssh-fips >= 7.2p2-55.1
  • openssh-helpers >= 7.2p2-55.1
Patchnames:
SUSE Linux Enterprise Server for Raspberry Pi 12 SP2 GA openssh
SUSE Linux Enterprise Server for SAP Applications 11 SP2-LTSS
  • openssh >= 5.1p1-41.69.1
  • openssh-askpass >= 5.1p1-41.69.1
  • openssh-askpass-gnome >= 5.1p1-41.69.4
Patchnames:
slessp2-openssh-12168
SUSE Linux Enterprise Server for SAP Applications 11 SP3
  • openssh >= 6.2p2-0.21.1
  • openssh-askpass >= 6.2p2-0.21.1
  • openssh-askpass-gnome >= 6.2p2-0.21.3
Patchnames:
slessp3-openssh-12096
SUSE Linux Enterprise Server for SAP Applications 11 SP4
  • openssh >= 6.6p1-13.1
  • openssh-askpass-gnome >= 6.6p1-13.3
  • openssh-fips >= 6.6p1-13.1
  • openssh-helpers >= 6.6p1-13.1
Patchnames:
slessp4-openssh-12119
SUSE Linux Enterprise Server for SAP Applications 12
  • openssh >= 6.6p1-29.1
  • openssh-askpass-gnome >= 6.6p1-29.1
  • openssh-fips >= 6.6p1-29.1
  • openssh-helpers >= 6.6p1-29.1
Patchnames:
SUSE-SLE-SERVER-12-2015-526
SUSE Linux Enterprise Server for VMWare 11 SP3
  • openssh >= 6.2p2-0.21.1
  • openssh-askpass >= 6.2p2-0.21.1
  • openssh-askpass-gnome >= 6.2p2-0.21.3
Patchnames:
slessp3-openssh-12096
openSUSE Leap 42.1
  • openssh >= 6.6p1-6.3
  • openssh-helpers >= 6.6p1-6.3
Patchnames:
openSUSE Leap 42.1 GA openssh
openSUSE Leap 42.2
  • openssh >= 7.2p2-6.1
  • openssh-helpers >= 7.2p2-6.1
Patchnames:
openSUSE Leap 42.2 GA openssh
openSUSE Leap 42.3
  • openssh >= 7.2p2-13.1
  • openssh-helpers >= 7.2p2-13.1
Patchnames:
openSUSE Leap 42.3 GA openssh


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s) Source package State
SUSE Linux Enterprise Desktop 10 SP3 openssh Affected
SUSE Linux Enterprise Desktop 11 SP1 openssh Released
SUSE Linux Enterprise Desktop 11 SP2 openssh Released
SUSE Linux Enterprise Desktop 11 SP3 openssh Released
SUSE Linux Enterprise Desktop 11 SP4 openssh Released
SUSE Linux Enterprise Desktop 12 GA openssh Released
SUSE Linux Enterprise Desktop 12 SP1 openssh Released
SUSE Linux Enterprise Server 10 SP3 openssh Affected
SUSE Linux Enterprise Server 11 SP1 LTSS openssh Released
SUSE Linux Enterprise Server 11 SP2 openssh Released
SUSE Linux Enterprise Server 11 SP2 LTSS openssh Released
SUSE Linux Enterprise Server 11 SP3 openssh Released
SUSE Linux Enterprise Server 11 SP4 openssh Released
SUSE Linux Enterprise Server 12 GA openssh Released
SUSE Linux Enterprise Server for SAP Applications 11 SP2 openssh Released
SUSE Linux Enterprise Server for VMWare 11 SP2 openssh Released
SUSE Linux Enterprise Server for VMWare 11 SP3 openssh Released