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Cloud FoundryCFOUNDRY:F32EC67CB8EF3A5AC3DF32865AAB787D

HistoryJun 22, 2017 - 12:00 a.m.

USN-3309-1: Libtasn1 vulnerability | Cloud Foundry

2017-06-2200:00:00

Cloud Foundry

www.cloudfoundry.org

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

6.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

0.002 Low

EPSS

Percentile

60.6%

JSON

Severity

Medium

Vendor

Canonical Ubuntu

Versions Affected

Canonical Ubuntu 14.04

Description

Jakub Jirasek discovered that GnuTLS incorrectly handled certain assignments files. If a user were tricked into processing a specially crafted assignments file, a remote attacker could possibly execute arbirary code.

Affected Cloud Foundry Products and Versions

Severity is medium unless otherwise noted.

Cloud Foundry BOSH stemcells are vulnerable, including:
- 3263.x versions prior to 3263.28
- 3312.x versions prior to 3312.29
- 3363.x versions prior to 3363.26
- 3421.x versions prior to 3421.9
- All other stemcells not listed.
All versions of Cloud Foundry cflinuxfs2 prior to 1.128.0

Mitigation

OSS users are strongly encouraged to follow one of the mitigations below:

The Cloud Foundry project recommends upgrading the following BOSH stemcells:
- Upgrade 3263.x versions prior to 3263.28
- Upgrade 3312.x versions prior to 3312.29
- Upgrade 3363.x versions prior to 3363.26
- Upgrade 3421.x versions prior to 3421.9
- All other stemcells should be upgraded to the latest version available on bosh.io.
The Cloud Foundry project recommends that Cloud Foundry deployments run with cflinuxfs2 version 1.128.0 or later.