Apple Mac OS X up to 10.9.4 apache_mod_php ext/standard/dns.c dns_get_record memory corruption

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CTI Interest Score
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7.0$0-$5k0.00

A vulnerability was found in Apple Mac OS X up to 10.9.4 (Operating System). It has been declared as critical. Affected by this vulnerability is the function dns_get_record of the file ext/standard/dns.c of the component apache_mod_php. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Heap-based buffer overflow in the php_parserr function in ext/standard/dns.c in PHP 5.6.0beta4 and earlier allows remote servers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted DNS TXT record, related to the dns_get_record function.

The weakness was presented 09/17/2014 by Stefan Esser as HT6443 as confirmed advisory (Website). The advisory is shared at support.apple.com. This vulnerability is known as CVE-2014-4049 since 06/12/2014. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 76230 (openSUSE Security Update : php5 (openSUSE-SU-2014:0841-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 185089 (HP-UX Apache Server Suite Multiple Vulnerabilities (HPSBUX03102)).

Upgrading to version 10.9.5 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 16505.

The vulnerability is also documented in the vulnerability database at Tenable (76230). See 13383, 13384, 13386 and 13387 for similar entries.

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Support

  • end of life

CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
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CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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Current Price Estimation: 🔍

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Nessus ID: 76230
Nessus Name: openSUSE Security Update : php5 (openSUSE-SU-2014:0841-1)
Nessus File: 🔍
Nessus Risk: 🔍
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OpenVAS ID: 702961
OpenVAS Name: Debian Security Advisory DSA 2961-1 (php5 - security update)
OpenVAS File: 🔍
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Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
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Upgrade: Mac OS X 10.9.5
Patch: github.com
TippingPoint: 🔍

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Timelineinfo

06/11/2014 🔍
06/11/2014 +0 days 🔍
06/12/2014 +1 days 🔍
06/15/2014 +3 days 🔍
06/18/2014 +3 days 🔍
06/26/2014 +8 days 🔍
09/17/2014 +83 days 🔍
09/17/2014 +0 days 🔍
09/23/2014 +6 days 🔍
02/20/2022 +2707 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT6443
Researcher: Stefan Esser
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-4049 (🔍)
OVAL: 🔍
IAVM: 🔍

SecurityTracker: 1030435
Vulnerability Center: 44984 - PHP <5.3.29, <5.4.30, <5.5.14 Remote Code Execution Vulnerability in DNS TXT Record Parsing, Medium
SecurityFocus: 68007 - PHP DNS TXT Record Handling Heap Buffer Overflow Vulnerability
Secunia: 59270

scip Labs: https://www.scip.ch/en/?labs.20150108
See also: 🔍

Entryinfo

Created: 09/23/2014 13:06
Updated: 02/20/2022 14:27
Changes: 09/23/2014 13:06 (83), 05/30/2017 13:06 (6), 02/20/2022 14:24 (4), 02/20/2022 14:27 (1)
Complete: 🔍

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