#VU16343 NULL pointer dereference in LibRaw - CVE-2018-5806

Vulnerability identifier: #VU16343

Vulnerability risk: Low

CVSSv4.0: 1.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2018-5806

CWE-ID: CWE-476

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
LibRaw
Universal components / Libraries / Libraries used by multiple products

Vendor: LibRaw LLC

Description
The vulnerability allows a local attacker to cause DoS condition on the target system.

The weakness exists due to an error within the "leaf_hdr_load_raw()" function (internal/dcraw_common.cpp).  A local attacker can submit specially crafted images, trigger NULL pointer dereference and cause the service to crash.

Mitigation
Update to version 0.18.8.

Vulnerable software versions

LibRaw: 0.18.0 - 0.18.7

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External links
https://github.com/LibRaw/LibRaw/commit/9f26ce37f5be86ea11bfc6831366558650b1f6ff

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.