Vulnerability Name:

CVE-2017-16876 (CCN-136939)

Assigned:2017-11-17
Published:2017-11-17
Updated:2018-01-10
Summary:Cross-site scripting (XSS) vulnerability in the _keyify function in mistune.py in Mistune before 0.8.1 allows remote attackers to inject arbitrary web script or HTML by leveraging failure to escape the "key" argument.
CVSS v3 Severity:6.1 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)
5.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:H/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): None
6.1 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)
5.8 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:H/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): None
CVSS v2 Severity:4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
5.5 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:P/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-79
Vulnerability Consequences:Cross-Site Scripting
References:Source: MITRE
Type: CNA
CVE-2017-16876

Source: CCN
Type: Red Hat Bugzilla – Bug 1524596
CVE-2017-16876 python-mistune: Cross-site-scripting

Source: CONFIRM
Type: Issue Tracking, Third Party Advisory, VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1524596

Source: XF
Type: UNKNOWN
mistune-cve201716876-xss(136939)

Source: CCN
Type: Mistune Web site
mistune

Source: CONFIRM
Type: Release Notes, Third Party Advisory
https://github.com/lepture/mistune/blob/master/CHANGES.rst

Source: CONFIRM
Type: Patch, Third Party Advisory
https://github.com/lepture/mistune/commit/5f06d724bc05580e7f203db2d4a4905fc1127f98

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2017-7b4149911a

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2017-16876

Vulnerable Configuration:Configuration 1:
  • cpe:/a:mistune_project:mistune:*:*:*:*:*:*:*:* (Version < 0.8.1)

    • Configuration 2:
  • cpe:/o:fedoraproject:fedora:26:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:mistune_project:mistune:0.8:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:201716876
    V
    		CVE-2017-16876
    2022-06-30
    oval:org.opensuse.security:def:113273
    P
    		python36-mistune-0.8.4-3.5 on GA media (Moderate)
    2022-01-17
    oval:org.opensuse.security:def:106685
    P
    		python36-mistune-0.8.4-3.5 on GA media (Moderate)
    2021-10-01
    oval:com.ubuntu.xenial:def:2017168760000000
    V
    		CVE-2017-16876 on Ubuntu 16.04 LTS (xenial) - medium.
    2017-12-29
    oval:com.ubuntu.artful:def:201716876000
    V
    		CVE-2017-16876 on Ubuntu 17.10 (artful) - untriaged.
    2017-12-29
    oval:com.ubuntu.disco:def:2017168760000000
    V
    		CVE-2017-16876 on Ubuntu 19.04 (disco) - medium.
    2017-12-29
    oval:com.ubuntu.bionic:def:201716876000
    V
    		CVE-2017-16876 on Ubuntu 18.04 LTS (bionic) - medium.
    2017-12-29
    oval:com.ubuntu.cosmic:def:2017168760000000
    V
    		CVE-2017-16876 on Ubuntu 18.10 (cosmic) - medium.
    2017-12-29
    oval:com.ubuntu.cosmic:def:201716876000
    V
    		CVE-2017-16876 on Ubuntu 18.10 (cosmic) - medium.
    2017-12-29
    oval:com.ubuntu.bionic:def:2017168760000000
    V
    		CVE-2017-16876 on Ubuntu 18.04 LTS (bionic) - medium.
    2017-12-29
    oval:com.ubuntu.xenial:def:201716876000
    V
    		CVE-2017-16876 on Ubuntu 16.04 LTS (xenial) - medium.
    2017-12-29
    BACK
    mistune_project mistune *
    fedoraproject fedora 26
    mistune_project mistune 0.8