Bug#921215: poppler: CVE-2019-7310: Heap buffer overflow in XRef::getEntry due to integer overflow

[Salvatore Bonaccorso]

Source: poppler
Version: 0.71.0-2
Severity: important
Tags: security upstream
Forwarded: https://gitlab.freedesktop.org/poppler/poppler/issues/717

Hi,

The following vulnerability was published for poppler.

CVE-2019-7310[0]:
| In Poppler 0.73.0, a heap-based buffer over-read (due to an integer
| signedness error in the XRef::getEntry function in XRef.cc) allows
| remote attackers to cause a denial of service (application crash) or
| possibly have unspecified other impact via a crafted PDF document, as
| demonstrated by pdftocairo.

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-2019-7310
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-7310
[1] https://gitlab.freedesktop.org/poppler/poppler/issues/717

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore