A vulnerability, which was classified as problematic, has been found in minidjvu 0.8. This issue affects the function row_is_empty of the file base/4bitmap.c of the component djvu File Handler. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is availability. The summary by CVE is:

The row_is_empty function in base/4bitmap.c:272 in minidjvu 0.8 can cause a denial of service (invalid memory read and application crash) via a crafted djvu file.

The bug was discovered 08/07/2017. The weakness was released 08/17/2017 by qflb.wu as not defined mailinglist post (Full-Disclosure). The advisory is shared at seclists.org. The identification of this vulnerability is CVE-2017-12442 since 08/04/2017. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details as well as a public exploit are known.

The exploit is available at packetstormsecurity.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 10 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 100421†). Entries connected to this vulnerability are available at VDB-105400, VDB-105402, VDB-105403 and VDB-105404. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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• minidjvu

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• 0.8

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• 🔍

CPE 2.2info

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• 🔍

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