potrace up to 1.12 BMP Image bitmap_io.c bm_readbody_bmp null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability has been found in potrace up to 1.12 and classified as problematic. Affected is the function bm_readbody_bmp of the file bitmap_io.c of the component BMP Image Handler. This manipulation causes null pointer dereference. This vulnerability is tracked as CVE-2016-8696. The attack is possible to be carried out remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as problematic was found in potrace up to 1.12. Affected by this vulnerability is the function bm_readbody_bmp of the file bitmap_io.c of the component BMP Image Handler. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. The summary by CVE is:

The bm_readbody_bmp function in bitmap_io.c in potrace before 1.13 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a crafted BMP image, a different vulnerability than CVE-2016-8694 and CVE-2016-8695.

The bug was discovered 08/18/2016. The weakness was disclosed 01/31/2017 by Agostino Sarubbo with Gentoo (Website). The advisory is shared at potrace.sourceforge.net. This vulnerability is known as CVE-2016-8696 since 10/15/2016. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 69 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 94293 (Debian DLA-675-1 : potrace security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 276815 (Fedora Security Update for potrace (FEDORA-2017-d7739ff31b)).

Upgrading to version 1.13 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (94293) and SecurityFocus (BID 93778†). The entries VDB-96333, VDB-96335, VDB-96336 and VDB-96338 are pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 94293
Nessus Name: Debian DLA-675-1 : potrace security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 867773
OpenVAS Name: Fedora Update for potrace FEDORA-2017-d7739ff31b
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: potrace 1.13

Timelineinfo

08/18/2016 🔍
10/15/2016 +58 days 🔍
10/15/2016 +0 days 🔍
10/26/2016 +11 days 🔍
10/27/2016 +1 days 🔍
01/31/2017 +96 days 🔍
01/31/2017 +0 days 🔍
02/01/2017 +1 days 🔍
08/08/2020 +1284 days 🔍

Sourcesinfo

Advisory: potrace.sourceforge.net
Researcher: Agostino Sarubbo
Organization: Gentoo
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-8696 (🔍)
GCVE (CVE): GCVE-0-2016-8696
GCVE (VulDB): GCVE-100-96337
SecurityFocus: 93778 - Potrace Multiple Security Vulnerabilities
OSVDB: - CVE-2016-8696 - potrace - Denial of Service Issue

See also: 🔍

Entryinfo

Created: 02/01/2017 07:14
Updated: 08/08/2020 13:03
Changes: 02/01/2017 07:14 (74), 08/08/2020 13:03 (9)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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