CVE-2017-9226

Aliases:DEBIAN-CVE-2017-9226
Advisory lineage Upstream: 0 Downstream: 10
Modified
Published: 24 May 2017, 15:00
Last modified:05 Aug 2024, 17:02

Vulnerability Summary

Overall Risk (default)
high
70/100
CVSS Score
9.8 CRITICAL
v3.1 (nvd)
EPSS Score
7.51% LOW
8% probability +6.39%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

24 May 2017, 15:00
Published
Vulnerability first disclosed
05 Aug 2024, 17:02
Last Modified
Vulnerability information updated

Description

An issue was discovered in Oniguruma 6.2.0, as used in Oniguruma-mod in Ruby through 2.4.1 and mbstring in PHP through 7.1.5. A heap out-of-bounds write or read occurs in next_state_val() during regular expression compilation. Octal numbers larger than 0xff are not handled correctly in fetch_token() and fetch_token_in_cc(). A malformed regular expression containing an octal number in the form of '\700' would produce an invalid code point value larger than 0xff in next_state_val(), resulting in an out-of-bounds write memory corruption.

CVSS Metrics

  • v3.1•CRITICAL•Score: 9.8CVSS:3.1/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: 7.51%• Percentile: 94%

Techniques & Countermeasures

  • CWE-787•Out-of-bounds Write

    The product writes data past the end, or before the beginning, of the intended buffer.

Affected Systems

  • debian•libonig

    < 6.1.3-2 | < 6.1.3-2 | < 6.1.3-2 | < 6.1.3-2

  • oniguruma_project•oniguruma

    6.2.0

  • php•php

    < 5.6.31 | ≥ 7.0.0, < 7.0.21 | ≥ 7.1.0, < 7.1.7

References (6)