CVE-2017-6890

Description

A boundary error within the "foveon_load_camf()" function (dcraw_foveon.c) when initializing a huffman table in LibRaw-demosaic-pack-GPL2 before 0.18.2 can be exploited to cause a stack-based buffer overflow.

CVSS Metrics

• v3.0•CRITICAL•Score: 9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
• v2.0•HIGH•Score: 7.5AV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS Trends

Current EPSS score: 0.44%• Percentile: 63%

Techniques & Countermeasures

• CWE-119•Improper Restriction of Operations within the Bounds of a Memory Buffer

  The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

Affected Systems

• libraw•libraw-demosaic-pack-gpl2

  ≤ 0.18.1 | 0.x prior to 0.18.2

References (2)

• https://secuniaresearch.flexerasoftware.com/advisories/75000/
• https://github.com/LibRaw/LibRaw-demosaic-pack-GPL2/commit/194f592e205990ea8fce72b6c571c14350aca716