[Secure-testing-team] Bug#871320: qpdf: CVE-2017-11624 CVE-2017-11625 CVE-2017-11626 CVE-2017-11627

[Salvatore Bonaccorso]

Source: qpdf
Version: 5.1.2-2
Severity: important
Tags: patch upstream security

Hi,

the following vulnerabilities were published for qpdf.

CVE-2017-11624[0]:
| A stack-consumption vulnerability was found in libqpdf in QPDF 6.0.0,
| which allows attackers to cause a denial of service via a crafted file,
| related to the QPDFTokenizer::resolveLiteral function in
| QPDFTokenizer.cc after two consecutive calls to
| QPDFObjectHandle::parseInternal, aka an "infinite loop."

CVE-2017-11625[1]:
| A stack-consumption vulnerability was found in libqpdf in QPDF 6.0.0,
| which allows attackers to cause a denial of service via a crafted file,
| related to the QPDF::resolveObjectsInStream function in QPDF.cc, aka an
| "infinite loop."

CVE-2017-11626[2]:
| A stack-consumption vulnerability was found in libqpdf in QPDF 6.0.0,
| which allows attackers to cause a denial of service via a crafted file,
| related to the QPDFTokenizer::resolveLiteral function in
| QPDFTokenizer.cc after four consecutive calls to
| QPDFObjectHandle::parseInternal, aka an "infinite loop."

CVE-2017-11627[3]:
| A stack-consumption vulnerability was found in libqpdf in QPDF 6.0.0,
| which allows attackers to cause a denial of service via a crafted file,
| related to the PointerHolder function in PointerHolder.hh, aka an
| "infinite loop."

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

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2017-11624
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-11624
[1] https://security-tracker.debian.org/tracker/CVE-2017-11625
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-11625
[2] https://security-tracker.debian.org/tracker/CVE-2017-11626
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-11626
[3] https://security-tracker.debian.org/tracker/CVE-2017-11627
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-11627

Regards,
Salvatore