[Secure-testing-team] Bug#863312: libonig: CVE-2017-9224

[Salvatore Bonaccorso]

Source: libonig
Version: 5.9.5-3.2
Severity: important
Tags: security upstream patch
Forwarded: https://github.com/kkos/oniguruma/issues/57

Hi,

the following vulnerability was published for libonig.

CVE-2017-9224[0]:
| 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 stack
| out-of-bounds read occurs in match_at() during regular expression
| searching. A logical error involving order of validation and access in
| match_at() could result in an out-of-bounds read from a stack buffer.

If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2017-9224
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-9224
[1] https://github.com/kkos/oniguruma/issues/57
[2] https://github.com/kkos/oniguruma/commit/690313a061f7a4fa614ec5cc8368b4f2284e059b

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore