vulnwire
9.8crit

CVE-2017-9226in critical feed

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.

Published 9 y ago · modified 4 mo ago · JSON

CVSS
9.8
v3.1 · NVD
CISA KEV
No
not known exploited
EPSS
7.5%
percentile 95%
Public exploits
0
none known

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.

Exploit prediction (EPSS)

7.51% probability of exploitation in the next 30 days, higher than 95% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.19.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD2.07.5AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
Technology feeds
PHP (RSS, critical only)

References

  • github.com /kkos/oniguruma/issues/55 · x_refsource_CONFIRM, x_transferred
  • access.redhat.com /errata/RHSA-2018:1296 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • github.com /kkos/oniguruma/commit/f015fbdd95f76438cd86366467bb2b39870dd7c6 · x_refsource_CONFIRM, x_transferred
  • github.com /kkos/oniguruma/commit/b4bf968ad52afe14e60a2dc8a95d3555c543353a · x_refsource_CONFIRM, x_transferred
  • securityfocus.com /bid/101244 · vdb-entry, x_refsource_BID, x_transferred

Sources

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