Debian Security Advisory
DLA-1177-1 poppler -- LTS security update
- Date Reported:
- 18 Nov 2017
- Affected Packages:
- Security database references:
- In the Debian bugtracking system: Bug 879066, Bug 877952, Bug 877954, Bug 877957.
In Mitre's CVE dictionary: CVE-2017-14975, CVE-2017-14976, CVE-2017-14977, CVE-2017-15565.
- More information:
It was discovered that poppler, a PDF rendering library, was affected by several denial-of-service (application crash), null pointer dereferences and heap-based buffer over-read bugs:
The FoFiType1C::convertToType0 function in FoFiType1C.cc has a NULL pointer dereference vulnerability because a data structure is not initialized, which allows an attacker to launch a denial of service attack.
The FoFiType1C::convertToType0 function in FoFiType1C.cc has a heap-based buffer over-read vulnerability if an out-of-bounds font dictionary index is encountered, which allows an attacker to launch a denial of service attack.
The FoFiTrueType::getCFFBlock function in FoFiTrueType.cc has a NULL pointer dereference vulnerability due to lack of validation of a table pointer, which allows an attacker to launch a denial of service attack.
NULL Pointer Dereference exists in the GfxImageColorMap::getGrayLine() function in GfxState.cc via a crafted PDF document.
For Debian 7
Wheezy, these problems have been fixed in version 0.18.4-6+deb7u4.
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