[Secure-testing-team] Bug#861597: libpodofo: CVE-2017-8378

[Salvatore Bonaccorso]

Source: libpodofo
Version: 0.9.4-1
Severity: important
Tags: upstream security

Hi,

the following vulnerability was published for libpodofo.

CVE-2017-8378[0]:
| Heap-based buffer overflow in the PdfParser::ReadObjects function in
| base/PdfParser.cpp in PoDoFo 0.9.5 allows remote attackers to cause a
| denial of service (application crash) or possibly have unspecified
| other impact via vectors related to m_offsets.size.

AFAICS, but please double-check/confirm, the same issue is at least
present in 0.9.4, the m_offsets.size is not checked. Or do I miss
soemthing?

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-2017-8378
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8378
[1] https://github.com/xiangxiaobo/poc_and_report/tree/master/podofo_heapoverflow_PdfParser.ReadObjects

Please adjust the affected versions in the BTS as needed, specifically
older versions have not yet been checked.

Regards,
Salvatore