Vulnerability Name:

CVE-2017-6961 (CCN-123378)

Assigned:2017-03-17
Published:2017-03-17
Updated:2017-03-20
Summary:An issue was discovered in apng2gif 1.7. There is improper sanitization of user input causing huge memory allocations, resulting in a crash. This is related to the read_chunk function using the pChunk->size value (within the PNG file) to determine the amount of memory to allocate.
CVSS v3 Severity:5.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)
4.9 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/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): None
Integrity (I): None
Availibility (A): High
5.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)
4.9 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/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): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
4.6 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-20
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2017-6961

Source: CCN
Type: Debian Bug report logs - #854441
apng2gif: CVE-2017-6961: Improper sanitization of user input causing huge memory allocations resulting in crash

Source: MISC
Type: Issue Tracking, Third Party Advisory
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=854441

Source: XF
Type: UNKNOWN
apng2gif-cve20176961-dos(123378)

Source: CCN
Type: SourceForge apng2gif Project
apng2gif

Vulnerable Configuration:Configuration 1:
  • cpe:/a:apng2gif_project:apng2gif:1.7:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.bionic:def:201769610000000
    V
    		CVE-2017-6961 on Ubuntu 18.04 LTS (bionic) - medium.
    2017-03-17
    oval:com.ubuntu.artful:def:20176961000
    V
    		CVE-2017-6961 on Ubuntu 17.10 (artful) - medium.
    2017-03-17
    oval:com.ubuntu.trusty:def:20176961000
    V
    		CVE-2017-6961 on Ubuntu 14.04 LTS (trusty) - medium.
    2017-03-17
    oval:com.ubuntu.xenial:def:201769610000000
    V
    		CVE-2017-6961 on Ubuntu 16.04 LTS (xenial) - medium.
    2017-03-17
    oval:com.ubuntu.bionic:def:20176961000
    V
    		CVE-2017-6961 on Ubuntu 18.04 LTS (bionic) - medium.
    2017-03-17
    oval:com.ubuntu.xenial:def:20176961000
    V
    		CVE-2017-6961 on Ubuntu 16.04 LTS (xenial) - medium.
    2017-03-17
    oval:com.ubuntu.disco:def:201769610000000
    V
    		CVE-2017-6961 on Ubuntu 19.04 (disco) - medium.
    2017-03-17
    oval:com.ubuntu.cosmic:def:20176961000
    V
    		CVE-2017-6961 on Ubuntu 18.10 (cosmic) - medium.
    2017-03-17
    oval:com.ubuntu.cosmic:def:201769610000000
    V
    		CVE-2017-6961 on Ubuntu 18.10 (cosmic) - medium.
    2017-03-17
    oval:com.ubuntu.precise:def:20176961000
    V
    		CVE-2017-6961 on Ubuntu 12.04 LTS (precise) - medium.
    2017-03-17
    BACK
    apng2gif_project apng2gif 1.7