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CVE-2014-4049 is a heap-based buffer overflow in PHP's DNS TXT-record parsing, in the php_parserr function in ext/standard/dns.c. PHP 5.6.0beta4 and earlier are affected. A crafted DNS TXT response processed through the dns_get_record function can overflow heap memory, causing a PHP interpreter crash and potentially permitting execution of attacker-controlled code in the interpreter's context.
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No public exploit code observed for this vulnerability.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A remote denial-of-service vulnerability in PHP included in the HP-UX Apache Web Server Suite bulletin.
A medium-severity heap-based buffer overflow in PHP's parsing of DNS TXT records. A malicious DNS server or on-path attacker could potentially achieve arbitrary code execution in the PHP interpreter when an application invokes dns_get_record() for DNS queries.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.