Array Index Error in libc Implementations Affecting Multiple Operating Systems and Software
CVE-2009-0689

Currently unrated

Key Information:

Vendor: FreeBSD
Status: FreeBSD; Firefox; Seamonkey; Netbsd
Vendor: CVE Published:; 1 July 2009

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👾 Exploit Exists🟡 Public PoC🟣 EPSS 41%

What is CVE-2009-0689?

The vulnerability in the libc implementations arises from an array index error in the dtoa functions found in both dtoa.c and gdtoa/misc.c files. This issue impacts various operating systems including FreeBSD, NetBSD, and OpenBSD, along with several software applications such as Mozilla Firefox, K-Meleon, and SeaMonkey. It allows context-dependent attackers to exploit the printf function by supplying a large precision value, potentially leading to a denial of service by causing an application crash. Additionally, this exploitation may enable arbitrary code execution through incorrect memory allocation and subsequent heap-based buffer overflow during the conversion to floating-point numbers.

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Exploit Proof of Concept (PoC)

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Created by Fullmetal5