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CVE-2017-12595

Published: 27 August 2017

The tokenizer in QPDF 6.0.0 and 7.0.b1 is recursive for arrays and dictionaries, which allows remote attackers to cause a denial of service (stack consumption and segmentation fault) or possibly have unspecified other impact via a PDF document with a deep data structure, as demonstrated by a crash in QPDFObjectHandle::parseInternal in libqpdf/QPDFObjectHandle.cc.

Notes

AuthorNote
mdeslaur
this patch breaks ABI

Priority

Low

Cvss 3 Severity Score

7.8

Score breakdown

Status

Package Release Status
qpdf
Launchpad, Ubuntu, Debian
artful Not vulnerable
(7.0.0-1)
bionic Not vulnerable
(7.0.0-1)
trusty
Released (8.0.2-3~14.04.1)
upstream
Released (7.0.0-1)
xenial
Released (8.0.2-3~16.04.1)
zesty Ignored
(end of life)
Patches:
upstream: https://github.com/qpdf/qpdf/commit/ad527a64f93dca12f6aabab2ca99ae5eb352ab4b
upstream: https://github.com/qpdf/qpdf/commit/728dc9e6d8975eebbbc0f5b35628b57d273ffe2d

Severity score breakdown

Parameter Value
Base score 7.8
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H