SB2017040329 - Ubuntu update for nagios3

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Main Vulnerability Database SB2017040329

SB2017040329 - Ubuntu update for nagios3

Published: April 3, 2017 Updated: October 30, 2026

Security Bulletin ID SB2017040329
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 4
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Medium 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 4 vulnerabilities.


1) Input validation error (CVE-ID: CVE-2013-7108)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N]


The vulnerability allows a remote #AU# to #BASIC_IMPACT#.

Multiple off-by-one errors in Nagios Core 3.5.1, 4.0.2, and earlier, and Icinga before 1.8.5, 1.9 before 1.9.4, and 1.10 before 1.10.2 allow remote authenticated users to obtain sensitive information from process memory or cause a denial of service (crash) via a long string in the last key value in the variable list to the process_cgivars function in (1) avail.c, (2) cmd.c, (3) config.c, (4) extinfo.c, (5) histogram.c, (6) notifications.c, (7) outages.c, (8) status.c, (9) statusmap.c, (10) summary.c, and (11) trends.c in cgi/, which triggers a heap-based buffer over-read.


2) Out-of-bounds read (CVE-ID: CVE-2013-7205)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to perform denial of service (DoS) attack.

The vulnerability exists due to a boundary condition when processing a long string in the last key value in the variable list, which triggers a heap-based buffer over-read within the Off-by-one error in the process_cgivars function in contrib/daemonchk.c. A remote attacker can create a specially crafted file, pass it to the application, trigger out-of-bounds read error and crash the affected application.


3) Stack-based buffer overflow (CVE-ID: CVE-2014-1878)

CWE-ID: CWE-121 - Stack-based buffer overflow

CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the cmd_submitf function in cgi/cmd.c when processing a long message to cmd.cgi. A remote unauthenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


4) Symlink attack (CVE-ID: CVE-2016-9566)

CWE-ID: CWE-61 - UNIX Symbolic Link (Symlink) Following

CVSSv4: 9.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H]


The vulnerability allows a local user obtain elevated privileges on vulnerable system.

The vulnerability exists due to the application handles log files in unsafe manner. A local user with access to Nagios application (nagios account or member of nagios group) can cerate a specially crafted symlink to nagios log file and execute arbitrary command on vulnerable system with root privileges.

Successful exploitation of this vulnerability may allow a local user to obtain full access to vulnerable system.


Remediation

Install update from vendor's website.

References