CVE-2018-5816

Description

An integer overflow error within the "identify()" function (internal/dcraw_common.cpp) in LibRaw versions prior to 0.18.12 can be exploited to trigger a division by zero via specially crafted NOKIARAW file (Note: This vulnerability is caused due to an incomplete fix of CVE-2018-5804).

CVSS Metrics

• v3.0•MEDIUM•Score: 6.5CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
• v2.0•HIGH•Score: 7.1AV:N/AC:M/Au:N/C:N/I:N/A:C

EPSS Trends

Current EPSS score: 0.62%• Percentile: 70%

Techniques & Countermeasures

• CWE-190•Integer Overflow or Wraparound

  The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

Affected Systems

• canonical•ubuntu_linux

  14.04 | 16.04 | 18.04

• libraw•libraw

  < 0.18.12

References (5)

• https://secuniaresearch.flexerasoftware.com/secunia_research/2018-14/
• https://github.com/LibRaw/LibRaw/commit/1d8d1b452e5dc74033ee9f846081a0efb616cc39
• https://github.com/LibRaw/LibRaw/blob/master/Changelog.txt
• https://usn.ubuntu.com/3838-1/
• https://secuniaresearch.flexerasoftware.com/advisories/83507/