Access Restriction Bypass Affecting libuser-debuginfo package, versions <0:0.56.13-8.15.amzn1


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-AMZN201803-LIBUSERDEBUGINFO-1689064
  • published27 Sept 2021
  • disclosed11 Aug 2015

Introduced: 11 Aug 2015

CVE-2015-3246  (opens in a new tab)
CWE-264  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2018.03 libuser-debuginfo to version 0:0.56.13-8.15.amzn1 or higher.
This issue was patched in ALAS-2015-572.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libuser-debuginfo package and not the libuser-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2018.03 relevant fixed versions and status.

libuser before 0.56.13-8 and 0.60 before 0.60-7, as used in the userhelper program in the usermode package, directly modifies /etc/passwd, which allows local users to cause a denial of service (inconsistent file state) by causing an error during the modification. NOTE: this issue can be combined with CVE-2015-3245 to gain privileges.

CVSS Base Scores

version 3.1