Vulnerability Name:

CVE-2019-7321 (CCN-162617)

Assigned:2019-06-13
Published:2019-06-13
Updated:2020-08-24
Summary:Usage of an uninitialized variable in the function fz_load_jpeg in Artifex MuPDF 1.14 can result in a heap overflow vulnerability that allows an attacker to execute arbitrary code.
CVSS v3 Severity:9.8 Critical (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
8.5 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/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): High
Integrity (I): High
Availibility (A): High
7.8 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
6.8 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/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
CVSS v2 Severity:7.5 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
6.8 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-787
CWE-908
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2019-7321

Source: XF
Type: UNKNOWN
artifex-cve20197321-bo(162617)

Source: CCN
Type: mupdf GIT Repository
Bug 700560: Avoid dereferencing wild colorspace pointer.

Source: CCN
Type: GitHub Web site
MuPdf version 1.14 contains a wild pointer derefence that can lead to arbitrary read/write

Source: MISC
Type: Patch, Third Party Advisory
https://github.com/ereisr00/bagofbugz/tree/master/MuPDF/700560

Vulnerable Configuration:Configuration 1:
  • cpe:/a:artifex:mupdf:1.14.0:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:artifex:mupdf:1.14.0:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.bionic:def:201973210000000
    V
    		CVE-2019-7321 on Ubuntu 18.04 LTS (bionic) - medium.
    2019-06-13
    oval:com.ubuntu.cosmic:def:201973210000000
    V
    		CVE-2019-7321 on Ubuntu 18.10 (cosmic) - medium.
    2019-06-13
    oval:com.ubuntu.xenial:def:201973210000000
    V
    		CVE-2019-7321 on Ubuntu 16.04 LTS (xenial) - medium.
    2019-06-13
    oval:com.ubuntu.disco:def:201973210000000
    V
    		CVE-2019-7321 on Ubuntu 19.04 (disco) - medium.
    2019-06-13
    BACK
    artifex mupdf 1.14.0
    artifex mupdf 1.14.0