Out-of-bounds Write The advisory has been revoked - it doesn't affect any version of package libonig (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU1804-LIBONIG-282488
- published24 May 2017
- disclosed24 May 2017
Introduced: 24 May 2017
CVE-2017-9226 (opens in a new tab)Amendment
The Ubuntu security team deemed this advisory irrelevant for Ubuntu:18.04.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libonig package and not the libonig package as distributed by Ubuntu.
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.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2017-9226
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-9226
- https://security-tracker.debian.org/tracker/CVE-2017-9226
- https://github.com/kkos/oniguruma/commit/b4bf968ad52afe14e60a2dc8a95d3555c543353a
- https://github.com/kkos/oniguruma/commit/f015fbdd95f76438cd86366467bb2b39870dd7c6
- https://github.com/kkos/oniguruma/issues/55
- https://access.redhat.com/errata/RHSA-2018:1296
- http://www.securityfocus.com/bid/101244