SB2014090113 - Gentoo update for Net-SNMP

Description

This security bulletin contains information about 4 secuirty vulnerabilities.

1) Out-of-bounds read (CVE-ID: CVE-2012-2141)

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

The vulnerability exists due to a boundary condition within the the handle_nsExtendOutput2Table function function in agent/mibgroup/agent/extend.c file. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger out-of-bounds read error and crash the affected application.

2) Resource management error (CVE-ID: CVE-2012-6151)

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

Net-SNMP 5.7.1 and earlier, when AgentX is registering to handle a MIB and processing GETNEXT requests, allows remote attackers to cause a denial of service (crash or infinite loop, CPU consumption, and hang) by causing the AgentX subagent to timeout.

3) Input validation error (CVE-ID: CVE-2014-2284)

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

The Linux implementation of the ICMP-MIB in Net-SNMP 5.5 before 5.5.2.1, 5.6.x before 5.6.2.1, and 5.7.x before 5.7.2.1 does not properly validate input, which allows remote attackers to cause a denial of service via unspecified vectors.

4) NULL pointer dereference (CVE-ID: CVE-2014-2285)

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

The vulnerability exists due to a NULL pointer dereference error. A remote attacker can trigger denial of service conditions via an empty community string in an SNMP trap, which triggers a NULL pointer dereference within the newSVpv function in Perl.

Remediation

Install update from vendor's website.

References

• https://security.gentoo.org/
• https://security.gentoo.org/glsa/201409-02