CVE-2025-9396: lrzip Null Dereference

Description

A security flaw has been discovered in ckolivas lrzip up to 0.651. This impacts the function __GI_____strtol_l_internal of the file strtol_l.c. Performing manipulation results in null pointer dereference. The attack is only possible with local access. The exploit has been released to the public and may be exploited.

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CVSS v3.1 Score

3.3

LOW

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Weakness Type (CWE)

CWE-404 CWE-404

CWE-476 CWE-476

Affected Products

Vendor	Product	Versions
ckolivas	lrzip	< 0.651

References

Advisories & Patches

https://github.com/ckolivas/lrzip/issues/264 https://github.com/ckolivas/lrzip/issues/264

Exploits

https://drive.google.com/file/d/1EFbiiM1d7Ozb0ucZt6zRO3ngU8ugUnCn/view?usp=sharing https://github.com/ckolivas/lrzip/issues/264 https://vuldb.com/?submit.632368 https://github.com/ckolivas/lrzip/issues/264 https://vuldb.com/?submit.632368

Other References

https://vuldb.com/?ctiid.321232 https://vuldb.com/?id.321232

Frequently Asked Questions

What is CVE-2025-9396? +

A security flaw has been discovered in ckolivas lrzip up to 0.651. This impacts the function __GI_____strtol_l_internal of the file strtol_l.c. Performing manipulation results in null pointer dereference. The attack is only possible with local access. The exploit has been released to the public and may be exploited. It has a CVSS v3.1 base score of 3.3 (LOW).

How severe is CVE-2025-9396? +

CVE-2025-9396 has a CVSS v3.1 score of 3.3 out of 10, rated LOW. This is a low-severity vulnerability with limited impact.

What products are affected by CVE-2025-9396? +

CVE-2025-9396 affects products from ckolivas, specifically: lrzip. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-9396? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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