Exiv2 up to 0.26 PNG File pngchunk_int.cpp PngChunk::readRawProfile memory corruption

Summaryinfo

A vulnerability marked as critical has been reported in Exiv2 up to 0.26. This impacts the function PngChunk::readRawProfile of the file pngchunk_int.cpp of the component PNG File Handler. The manipulation leads to memory corruption. This vulnerability is listed as CVE-2018-19535. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in Exiv2 up to 0.26 (Image Processing Software) and classified as critical. This issue affects the function PngChunk::readRawProfile of the file pngchunk_int.cpp of the component PNG File Handler. 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 confidentiality, integrity, and availability. The summary by CVE is:

In Exiv2 0.26 and previous versions, PngChunk::readRawProfile in pngchunk_int.cpp may cause a denial of service (application crash due to a heap-based buffer over-read) via a crafted PNG file.

The bug was discovered 09/01/2018. The weakness was presented 11/26/2018 (Website). It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2018-19535 since 11/25/2018. 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 of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 85 days. During that time the estimated underground price was around $0-$5k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176682 (Debian Security Update for exiv2 (DLA 1691-1)).

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

See VDB-126567, VDB-126568 and VDB-127916 for similar entries. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Image Processing Software

Name

• Exiv2

Version

• 0.1
• 0.2
• 0.3
• 0.4
• 0.5
• 0.6
• 0.7
• 0.8
• 0.9
• 0.10
• 0.11
• 0.12
• 0.13
• 0.14
• 0.15
• 0.16
• 0.17
• 0.18
• 0.19
• 0.20
• 0.21
• 0.22
• 0.23
• 0.24
• 0.25
• 0.26

License

• free

Website

• Product: https://github.com/Exiv2/exiv2/

CPE 2.3info

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CPE 2.2info

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Entryinfo

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