Exiv2 0.26 image.cpp Exiv2::Image::io memory corruption

Summaryinfo

A vulnerability described as problematic has been identified in Exiv2 0.26. Impacted is the function Exiv2::Image::io of the file image.cpp. Such manipulation leads to memory corruption. This vulnerability is uniquely identified as CVE-2017-12957. The attack can be launched remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Exiv2 0.26 (Image Processing Software). Affected by this issue is the function Exiv2::Image::io of the file image.cpp. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is availability. CVE summarizes:

There is a heap-based buffer over-read in libexiv2 in Exiv2 0.26 that is triggered in the Exiv2::Image::io function in image.cpp. It will lead to remote denial of service.

The bug was discovered 08/17/2017. The weakness was disclosed 08/18/2017 (Website). The advisory is shared for download at bugzilla.redhat.com. This vulnerability is handled as CVE-2017-12957 since 08/18/2017. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 111098 (openSUSE Security Update : exiv2 (openSUSE-2018-727)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 171360 (OpenSUSE Security Update for exiv2 (openSUSE-SU-2018:1961-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 12 months after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (111098). The entries VDB-103650, VDB-103651, VDB-103652 and VDB-103653 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Image Processing Software

Name

• Exiv2

Version

• 0.26

License

• free

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

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Once again VulDB remains the best source for vulnerability data.

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