Bug#916083: cairo: CVE-2018-18064: Out of bound memset in libcairo result in stack buffer overflow

[Salvatore Bonaccorso]

Source: cairo
Version: 1.14.8-1
Severity: important
Tags: security upstream
Forwarded: https://gitlab.freedesktop.org/cairo/cairo/issues/341

Hi,

The following vulnerability was published for cairo.

CVE-2018-18064[0]:
| cairo through 1.15.14 has an out-of-bounds stack-memory write during
| processing of a crafted document by WebKitGTK+ because of the
| interaction between cairo-rectangular-scan-converter.c (the generate
| and render_rows functions) and cairo-image-compositor.c (the
| _cairo_image_spans_and_zero function).

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-2018-18064
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-18064
[1] https://gitlab.freedesktop.org/cairo/cairo/issues/341

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore