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Security Bulletin: TS3000 code level v7.x affected by Open Source GnuTLS cyrpto issue (CVE-2014-0092)

Created by Jujuan Mitchell on
Published URL:
https://www.ibm.com/support/pages/node/689667
689667

Security Bulletin


Summary

A security vulnerability has been found that affects certain level of TSSC code.

Vulnerability Details

lib/x509/verify.c in GnuTLS before 3.1.22 and 3.2.x before 3.2.12 does not properly handle unspecified errors when verifying X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers via a crafted certificate.


VendorVendor IDVendor TitleIncluded CVEs
RedHatRHSA-2014:0246
Important: gnutls security update		CVE-2014-0092

The GnuTLS library provides support for cryptographic algorithms and for protocols such as Transport Layer Security (TLS). It was discovered that GnuTLS did not correctly handle certain errors that could occur during the verification of an X.509 certificate, causing it to incorrectly report a successful verification. An attacker could use this flaw to create a specially crafted certificate that could be accepted by GnuTLS as valid for a site chosen by the attacker. This vulnerability may allow for modification of files on the TSSC host from an unauthenticated user when accessing the TSSC remotely through the service web page.

CVSS Base Score: 4.3
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/91486 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:N/C:N/I:P/A:N)

Affected Products and Versions

TSSC 7.0-7.2

Remediation/Fixes

TSSC 7.3.15 contains GnuTLS 2.8.5-13, which has been patched to fix this vulnerability. Upgrade to 7.3.15 is recommended.

Workarounds and Mitigations

No known workarounds. TSSC should be updated to 7.3.15 to address this issue. No fixes are planned for 7.0-7.2.

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References

Complete CVSS v2 Guide
On-line Calculator v2

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More details can be found here:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-0092
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-0092

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Disclaimer

According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.

Change History

29 May 2014 Original bulletin published

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.

Disclaimer

Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

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Document Information

Modified date:
19 August 2022

UID

ssg1S1004691

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