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CVE-2016-9487

Published: 13 July 2018

EpubCheck 4.0.1 does not properly restrict resolving external entities when parsing XML in EPUB files during validation. An attacker who supplies a specially crafted EPUB file may be able to exploit this behavior to read arbitrary files, or have the victim execute arbitrary requests on his behalf, abusing the victim's trust relationship with other entities.

Priority

Medium

Cvss 3 Severity Score

7.8

Score breakdown

Status

Package Release Status
epubcheck
Launchpad, Ubuntu, Debian
artful Not vulnerable
(4.0.2-1)
bionic Not vulnerable
(4.0.2-1)
cosmic Not vulnerable
(4.0.2-1)
disco Not vulnerable
(4.0.2-1)
eoan Not vulnerable
(4.0.2-1)
impish Not vulnerable
(4.0.2-1)
groovy Not vulnerable
(4.0.2-1)
jammy Not vulnerable
(4.0.2-1)
hirsute Not vulnerable
(4.0.2-1)
xenial Needed

focal Not vulnerable
(4.0.2-1)
kinetic Not vulnerable
(4.0.2-1)
lunar Not vulnerable
(4.0.2-1)
trusty Does not exist
(trusty was needed)
upstream
Released (4.0.2-1)
mantic Not vulnerable
(4.0.2-1)

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:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H