Debian 8: DLA-1562-2 Moderate: Poppler Denial of Service Issue

debian lts

November 29, 2018

A regression issue has been resolved in the poppler PDF rendering shared library introduced with version 0.26.5-2+deb8u5

Topics Covered

security advisory denial of service update debian poppler

Summary

CVE-2018-16646

In Poppler 0.68.0, the Parser::getObj() function in Parser.cc may
cause infinite recursion via a crafted file. A remote attacker can
leverage this for a DoS attack.

The previous solution in Debian LTS fixed the above issue in XRef.cc,
the patches had been obtained from a merge request (#67) on upstream's
Git development platform. Unfortunately, this merge request was declined
by upstream and another merge request (#91) got applied instead. The
fix now directly occurs in the Parser.cc file.

This version of poppler now ships the changeset that got favorized by
the poppler upstream developers (MR #91) and drops the patches from
MR #67.

For Debian 8 "Jessie", this problem has been fixed in version
0.26.5-2+deb8u6.

We recommend that you upgrade your poppler packages.

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS

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