Zero-day Vulnerability Database

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Zero-day vulnerabilities discovered: 1

Arbitrary code execution in Linux kernel
CVE-2012-2319

Buffer overflow

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

The weakness exists due to buffer overflow in the driver within HFS plus filesystem. By using a specially crafted Hierarchical File System (HFS) filesystem, a local attacker can trigger memory corruption and execute arbitrary code with system privileges.

Successful exploitation of the vulnerability results in arbitrary code execution on the vulnerable system.

Note: the vulnerability was being actively exploited.
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This is a zero-day according to Trustwave.

CVE-2012-2319 is a follow-up to CVE-2009-4020; issues in the HFS file system were detailed and patched on Dec. 3, 2009, but HFSPlus was left vulnerable until May 4, 2012.

Software: Linux kernel

This is a zero-day according to Trustwave.

CVE-2012-2319 is a follow-up to CVE-2009-4020; issues in the HFS file system were detailed and patched on Dec. 3, 2009, but HFSPlus was left vulnerable until May 4, 2012.

Links:

http://www.zdnet.com/article/linux-trailed-windows-in-patching-zero-days-in-2012-report-says/
https://www.trustwave.com/Resources/Library/Documents/2013-Trustwave-Global-Security-Report/?dl=1
https://lwn.net/Articles/538898/
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6f24f892871acc47b40dd594c6...

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About zero-day vulnerabilities

Zero-day vulnerability is an undisclosed vulnerability in software that hackers can exploit to compromise computer programs, gain unauthorized access to sensitive data, penetrate networks, etc. We consider vulnerability a zero-day when there is no solution provided from software vendor and the vulnerability is being actively exploited by malicious actors.

Zero-day candidate is a potential zero-day vulnerability in software which might have been used in targeted attacks, however there is no evidence to support this suggestion.