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Security Bulletin: Vulnerabilities in Open Source libuser affect IBM Security Guardium (CVE-2015-3246, CVE-2015-3245)

Created by Ofra Shinitzky on
Published URL:
https://www.ibm.com/support/pages/node/265707
265707

Security Bulletin


Summary

The vulnerabilities allow local users to perform denial-of-service and privilege-escalation attacks

Vulnerability Details

CVEID: CVE-2015-3246
DESCRIPTION:
 libuser could allow a local authenticated attacker to gain elevated privileges on the system, caused by the improper handling of the /etc/passwd file. An attacker could exploit this vulnerability to gain root privileges on the system.
CVSS Base Score: 7.8
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/105023 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)



CVEID: CVE-2015-3245
DESCRIPTION:
 libuser is vulnerable to a denial of service, caused by the failure to properly filter out newline characters by the chfn() function within the userhelper utility. A local authenticated attacker could exploit this vulnerability to inject newline characters into the /etc/passwd file and cause a denial of service.
CVSS Base Score: 4.7
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/105022 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

IBM Security Guardium 10

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References

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Change History

Added CVSS3 links and product name

*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:
16 June 2018

UID

swg21966429