Vulnerability CVE-2016-5637

Vulnerability Name:

CVE-2016-5637 (CCN-114957)

Assigned:

2016-07-12

Published:

2016-07-12

Updated:

2018-10-17

Summary:

The restore_tqb_pixels function in libbpg 0.9.5 through 0.9.7 mishandles the transquant_bypass_enable_flag value, which allows remote attackers to execute arbitrary code or cause a denial of service (out-of-bounds write) via a crafted BPG image, related to a "type confusion" issue.

CVSS v3 Severity:

8.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
7.7 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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): Required
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

6.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L)
5.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/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): Network 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:

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

6.5 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:P/I:P/A:P)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Athentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): Partial Integrity (I): Partial Availibility (A): Partial

Vulnerability Type:

CWE-119

Vulnerability Consequences:

Gain Access

References:

Source: CCN
Type: BPG Web site
BPG Image format

Source: MITRE
Type: CNA
CVE-2016-5637

Source: CCN
Type: US-CERT VU#123799
libbpg contains a type confusion vulnerability that leads to out of bounds write

Source: CERT-VN
Type: Third Party Advisory, US Government Resource
VU#123799

Source: BID
Type: Third Party Advisory, VDB Entry
91726

Source: CCN
Type: BID-91726
libbpg 'restore_tqb_pixels()' Function Type Confusion Remote Code Execution Vulnerability

Source: XF
Type: UNKNOWN
libbpg-cve20165637-dos(114957)

Vulnerable Configuration:

Configuration 1:

cpe:/a:libbpg_project:libbpg:*:*:*:*:*:*:*:* (Version >= 0.9.5 and <= 0.9.7)

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:com.ubuntu.bionic:def:201656370000000	V	CVE-2016-5637 on Ubuntu 18.04 LTS (bionic) - medium.	2016-07-15
oval:com.ubuntu.artful:def:20165637000	V	CVE-2016-5637 on Ubuntu 17.10 (artful) - medium.	2016-07-15
oval:com.ubuntu.trusty:def:20165637000	V	CVE-2016-5637 on Ubuntu 14.04 LTS (trusty) - medium.	2016-07-15
oval:com.ubuntu.xenial:def:201656370000000	V	CVE-2016-5637 on Ubuntu 16.04 LTS (xenial) - medium.	2016-07-15
oval:com.ubuntu.bionic:def:20165637000	V	CVE-2016-5637 on Ubuntu 18.04 LTS (bionic) - medium.	2016-07-15
oval:com.ubuntu.xenial:def:20165637000	V	CVE-2016-5637 on Ubuntu 16.04 LTS (xenial) - medium.	2016-07-15
oval:com.ubuntu.disco:def:201656370000000	V	CVE-2016-5637 on Ubuntu 19.04 (disco) - medium.	2016-07-15
oval:com.ubuntu.cosmic:def:20165637000	V	CVE-2016-5637 on Ubuntu 18.10 (cosmic) - medium.	2016-07-15
oval:com.ubuntu.cosmic:def:201656370000000	V	CVE-2016-5637 on Ubuntu 18.10 (cosmic) - medium.	2016-07-15
oval:com.ubuntu.precise:def:20165637000	V	CVE-2016-5637 on Ubuntu 12.04 LTS (precise) - medium.	2016-07-15

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