Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Summary
Title musl: Integer overflow
Informations
Name GLSA-201701-11 First vendor Publication 2017-01-02
Vendor Gentoo Last vendor Modification 2017-01-02
Severity (Vendor) N/A Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score 7.5 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Synopsis

An integer overflow in musl might allow an attacker to execute arbitrary code.

Background

musl is a "libc", an implementation of the standard library functionality described in the ISO C and POSIX standards, plus common extensions, intended for use on Linux-based systems.

Description

A vulnerability was discovered in musl's tre_tnfa_run_parallel function buffer overflow logic, due to the incorrect use of integer types and missing overflow checks.

Impact

An attacker, who controls the regular expression and/or string being searched, could execute arbitrary code with the privileges of the process.

Workaround

There is no known workaround at this time.

Resolution

All musl users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-libs/musl-1.1.15-r2"

References

[ 1 ] CVE-2016-8859 : http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-8859

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website:

https://security.gentoo.org/glsa/201701-11

Original Source

Url : http://security.gentoo.org/glsa/glsa-201701-11.xml

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-190 Integer Overflow or Wraparound (CWE/SANS Top 25)

Nessus® Vulnerability Scanner

Date Description
2017-01-03 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201701-11.nasl - Type : ACT_GATHER_INFO
2016-11-21 Name : The remote Fedora host is missing a security update.
File : fedora_2016-0a952a3bc0.nasl - Type : ACT_GATHER_INFO
2016-11-15 Name : The remote Fedora host is missing a security update.
File : fedora_2016-0ff6c3d84b.nasl - Type : ACT_GATHER_INFO
2016-11-15 Name : The remote Fedora host is missing a security update.
File : fedora_2016-cd09eab674.nasl - Type : ACT_GATHER_INFO
2016-10-28 Name : The remote Debian host is missing a security update.
File : debian_DLA-687.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
2
Date Informations
2017-07-01 09:25:35
  • Multiple Updates
2017-01-04 13:23:10
  • Multiple Updates
2017-01-02 17:24:26
  • First insertion