CVE-2018-20506

Advisory lineage Upstream: 0 Downstream: 8
Modified
Published: 03 Apr 2019, 17:50
Last modified:05 Aug 2024, 12:05

Vulnerability Summary

Overall Risk (default)
medium
34/100
CVSS Score
8.1 HIGH
v3.0 (nvd)
EPSS Score
8.7% LOW
9% probability +0.21%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

03 Apr 2019, 17:50
Published
Vulnerability first disclosed
05 Aug 2024, 12:05
Last Modified
Vulnerability information updated

Description

SQLite before 3.25.3, when the FTS3 extension is enabled, encounters an integer overflow (and resultant buffer overflow) for FTS3 queries in a "merge" operation that occurs after crafted changes to FTS3 shadow tables, allowing remote attackers to execute arbitrary code by leveraging the ability to run arbitrary SQL statements (such as in certain WebSQL use cases). This is a different vulnerability than CVE-2018-20346.

CVSS Metrics

  • v3.0•HIGH•Score: 8.1CVSS:3.0/AV:N/AC:H/PR:N/UI:N/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: 8.70%• Percentile: 93%

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

  • apple•icloud

    ≤ 7.10

  • apple•iphone_os

    < 12.1.3

  • apple•itunes

    ≤ 12.9.3

  • apple•mac_os_x

    < 10.14.3

  • apple•tvos

    < 12.1.2

  • apple•watchos

    < 5.1.3

  • opensuse•leap

    42.3

  • sqlite•sqlite

    < 3.25.3

References (27)