Out-of-bounds Write

Affecting oniguruma package, versions <6.9.4-r1

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Overview

Affected versions of this package are vulnerable to Out-of-bounds Write. In Oniguruma 6.9.5_rev1, an attacker able to supply a regular expression for compilation may be able to overflow a buffer by one byte in concat_opt_exact_str in src/regcomp.c .

Remediation

Upgrade oniguruma to version or higher.

References

CVSS Score

8.6
high severity
  • Attack Vector
    Network
  • Attack Complexity
    Low
  • Privileges Required
    None
  • User Interaction
    None
  • Scope
    Unchanged
  • Confidentiality
    Low
  • Integrity
    Low
  • Availability
    High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
CVE
CVE-2020-26159
CWE
CWE-787
Snyk ID
SNYK-ALPINE39-ONIGURUMA-1017393
Disclosed
30 Sep, 2020
Published
14 Oct, 2020