libonig: CVE-2019-19204: heap-buffer-overflow in fetch_interval_quantifier due to double PFETCH

Debian Bug report logs - #945313
libonig: CVE-2019-19204: heap-buffer-overflow in fetch_interval_quantifier due to double PFETCH

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Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

From: Salvatore Bonaccorso <carnil@debian.org>

To: Debian Bug Tracking System <submit@bugs.debian.org>

Subject: libonig: CVE-2019-19204: heap-buffer-overflow in fetch_interval_quantifier due to double PFETCH

Date: Fri, 22 Nov 2019 20:58:45 +0100

Source: libonig
Version: 6.9.2-1
Severity: important
Tags: security upstream
Forwarded: https://github.com/kkos/oniguruma/issues/162

Hi,

The following vulnerability was published for libonig.

CVE-2019-19204[0]:
| An issue was discovered in Oniguruma 6.x before 6.9.4_rc2. In the
| function fetch_interval_quantifier (formerly known as
| fetch_range_quantifier) in regparse.c, PFETCH is called without
| checking PEND. This leads to a heap-based buffer over-read.


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-2019-19204
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19204
[1] https://github.com/kkos/oniguruma/issues/162

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore

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