Vulnerability Name:

CVE-2017-8911 (CCN-125947)

Assigned:2017-05-12
Published:2017-05-12
Updated:2017-11-04
Summary:An integer underflow has been identified in the unicode_to_utf8() function in tnef 1.4.14. This might lead to invalid write operations, controlled by an attacker.
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)
8.6 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:U/RC:R)
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
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L)
4.7 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:U/RL:U/RC:R)
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): Low
Integrity (I): Low
Availibility (A): Low
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
4.3 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
Vulnerability Type:CWE-191
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2017-8911

Source: DEBIAN
Type: UNKNOWN
DSA-3869

Source: XF
Type: UNKNOWN
tnef-cve20178911-underflow(125947)

Source: CCN
Type: tnef GIT Repository
tnef

Source: MISC
Type: Issue Tracking, Patch, Third Party Advisory
https://github.com/verdammelt/tnef/issues/23

Source: GENTOO
Type: UNKNOWN
GLSA-201708-02

Vulnerable Configuration:Configuration 1:
  • cpe:/a:tnef_project:tnef:1.4.14:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:20178911
    V
    		CVE-2017-8911
    2022-06-30
    oval:org.opensuse.security:def:113532
    P
    		tnef-1.4.18-1.6 on GA media (Moderate)
    2022-01-17
    oval:org.opensuse.security:def:106928
    P
    		tnef-1.4.18-1.6 on GA media (Moderate)
    2021-10-01
    oval:com.ubuntu.trusty:def:20178911000
    V
    		CVE-2017-8911 on Ubuntu 14.04 LTS (trusty) - medium.
    2017-05-12
    oval:com.ubuntu.xenial:def:20178911000
    V
    		CVE-2017-8911 on Ubuntu 16.04 LTS (xenial) - medium.
    2017-05-12
    oval:com.ubuntu.xenial:def:201789110000000
    V
    		CVE-2017-8911 on Ubuntu 16.04 LTS (xenial) - medium.
    2017-05-12
    BACK
    tnef_project tnef 1.4.14