CVE-2016-1521

Advisory lineage Upstream: 0 Downstream: 10
Modified
Published: 13 Feb 2016, 02:00
Last modified:05 Aug 2024, 23:02

Vulnerability Summary

Overall Risk (default)
medium
35/100
CVSS Score
8.8 HIGH
v3.0 (nvd)
EPSS Score
0.85% LOW
1% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

13 Feb 2016, 02:00
Published
Vulnerability first disclosed
05 Aug 2024, 23:02
Last Modified
Vulnerability information updated

Description

The directrun function in directmachine.cpp in Libgraphite in Graphite 2 1.2.4, as used in Mozilla Firefox before 43.0 and Firefox ESR 38.x before 38.6.1, does not validate a certain skip operation, which allows remote attackers to execute arbitrary code, obtain sensitive information, or cause a denial of service (out-of-bounds read and application crash) via a crafted Graphite smart font.

CVSS Metrics

  • v3.0•HIGH•Score: 8.8CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
  • v2.0•MEDIUM•Score: 6.8AV:N/AC:M/Au:N/C:P/I:P/A:P

EPSS Trends

Current EPSS score: 0.85%• Percentile: 75%

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

  • debian•debian_linux

    7.0 | 8.0

  • fedoraproject•fedora

    22 | 23

  • mozilla•firefox

    ≤ 42.0 | 38.0.1 | 38.0.5 | 38.1.0 | 38.1.1 | 38.2.0 | 38.2.1 | 38.3.0 | 38.4.0 | 38.5.0 | 38.5.1 | 38.5.2 | 38.6.0

  • mozilla•thunderbird

    ≤ 38.5.1

  • sil•graphite2

    ≤ 1.2.4

References (18)