CVE-2018-14458
Description
libgig 4.1.0 has a heap-based buffer overflow in the store32 function in helper.h, triggered by malformed Gigasampler files.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
libgig 4.1.0 has a heap-based buffer overflow in the store32 function in helper.h, triggered by malformed Gigasampler files.
Vulnerability
An issue was discovered in libgig 4.1.0. There is a heap-based buffer overflow in pData[1] access in the function store32 in helper.h. This occurs when processing malformed Gigasampler (.gig) files, specifically those designed to trigger an out-of-bounds write via the store32 function. The code path is reachable through command-line tools like gigextract when loading crafted files [1].
Exploitation
An attacker needs to supply a specially crafted .gig file to an application using libgig. No authentication is required; the attack is triggered by simply parsing the file. The attacker does not need any special network position if the file is opened locally. The exact sequence involves creating a .gig file that causes store32 to write beyond the bounds of the allocated heap buffer [1].
Impact
Successful exploitation results in a heap-based buffer overflow, which can lead to memory corruption, denial of service, or potentially arbitrary code execution depending on the heap layout and mitigations in place. The crash observed is a segmentation fault or AddressSanitizer error, indicating out-of-bounds write [1].
Mitigation
No official fix has been released in the available references. The affected version is libgig 4.1.0. Users should avoid processing untrusted .gig files until a patch is issued. Manual code review and hardening of the store32 function may be necessary as a workaround [1].
AI Insight generated on May 26, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.
Affected products
2Patches
0No patches discovered yet.
Vulnerability mechanics
Root cause
"A heap-based buffer overflow occurs in the `store32` function due to improper handling of data within Gigasampler files."
Attack vector
An attacker can trigger this vulnerability by providing a specially crafted Gigasampler (.gig) file to the libgig library. When the library processes this file, specifically during the `store32` operation, it can lead to a heap-based buffer overflow. This overflow can be exploited to cause a denial-of-service or potentially execute arbitrary code. [ref_id=1]
Affected code
The vulnerability is located in the `store32` function within the `helper.h` file of libgig version 4.1.0. The reference write-ups also indicate related issues in `RIFF::Chunk::Read` and `gig::Sample::Read` functions, suggesting a broader issue in how chunk data is processed. [ref_id=1]
What the fix does
The provided bundle does not contain information about a patch or specific remediation steps. Therefore, the advisory does not specify how the vulnerability is fixed. Users are advised to consult the vendor for updated versions or security patches.
Preconditions
- inputThe presence of a specially crafted Gigasampler (.gig) file.
Generated on Jun 2, 2026. Inputs: CWE entries + fix-commit diffs from this CVE's patches. Citations validated against bundle.
References
1- github.com/TeamSeri0us/pocs/blob/master/libgig/README.mdmitrex_refsource_MISC
News mentions
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