Vulnerability Name:

CVE-2016-9487

Assigned:2016-12-13
Published:2016-12-13
Updated:2018-09-07
Summary: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.
CVSS v3 Severity:7.8 High (CVSS v3 Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
6.8 Medium (Temporal CVSS v3 Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
5.3 Medium (CCN CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
4.6 Medium (CCN Temporal CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): None
Availibility (A): None
CVSS v2 Severity:6.8 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
Vulnerability Type:CWE-611
References:Source: XF
Type: UNKNOWN
epubcheck-cve20169487-xxe-info-disc(119698)

Source: CERT-VN
Type: VENDOR_ADVISORY
VU#779243

Source: BID
Type: VENDOR_ADVISORY
94864

Vulnerable Configuration:Configuration 1:
  • cpe:/a:idpf:epubcheck:4.0.1:*:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.artful:def:20169487000
    V
    CVE-2016-9487 on Ubuntu 17.10 (artful) - medium.
    2018-07-13
    oval:com.ubuntu.xenial:def:20169487000
    V
    CVE-2016-9487 on Ubuntu 16.04 LTS (xenial) - medium.
    2018-07-13
    oval:com.ubuntu.trusty:def:20169487000
    V
    CVE-2016-9487 on Ubuntu 14.04 LTS (trusty) - medium.
    2018-07-13
    oval:com.ubuntu.bionic:def:20169487000
    V
    CVE-2016-9487 on Ubuntu 18.04 LTS (bionic) - medium.
    2018-07-13
    BACK
    idpf epubcheck 4.0.1