CVE-2017-9226

NameCVE-2017-9226
DescriptionAn 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-958-1
NVD severityhigh
Debian Bugs863314

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libonig (PTS)stretch6.1.3-2fixed
buster6.9.1-1fixed
bullseye, sid6.9.5-2fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libonigsourcewheezy5.9.1-1+deb7u1DLA-958-1
libonigsourcejessie5.9.5-3.2+deb8u1
libonigsource(unstable)6.1.3-2863314

Notes

https://github.com/kkos/oniguruma/commit/b4bf968ad52afe14e60a2dc8a95d3555c543353a
https://github.com/kkos/oniguruma/commit/f015fbdd95f76438cd86366467bb2b39870dd7c6
https://github.com/kkos/oniguruma/issues/55

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