libwmf 0.2.8.4 WMF File api.c wmf_malloc memory corruption

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

Summaryinfo

A vulnerability identified as problematic has been detected in libwmf 0.2.8.4. This issue affects the function wmf_malloc of the file api.c of the component WMF File Handler. This manipulation causes memory corruption. This vulnerability appears as CVE-2016-9011. The attack may be initiated remotely. There is no available exploit. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability classified as problematic was found in libwmf 0.2.8.4. Affected by this vulnerability is the function wmf_malloc of the file api.c of the component WMF File Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect availability. The summary by CVE is:

The wmf_malloc function in api.c in libwmf 0.2.8.4 allows remote attackers to cause a denial of service (application crash) via a crafted wmf file, which triggers a memory allocation failure.

The bug was discovered 10/25/2016. The weakness was presented 03/23/2017 by Agostino Sarubbo with Gentoo (oss-sec). It is possible to read the advisory at openwall.com. This vulnerability is known as CVE-2016-9011 since 10/25/2016. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 8 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 94475 (Debian DLA-694-1 : libwmf 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.

Applying a patch is able to eliminate this problem. 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 (94475) and SecurityFocus (BID 93860†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

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: Memory corruption
CWE: CWE-119
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: 94475
Nessus Name: Debian DLA-694-1 : libwmf security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/18/2016 🔍
10/25/2016 +7 days 🔍
10/25/2016 +0 days 🔍
11/02/2016 +8 days 🔍
11/03/2016 +1 days 🔍
03/23/2017 +140 days 🔍
03/23/2017 +0 days 🔍
03/24/2017 +1 days 🔍
09/12/2020 +1268 days 🔍

Sourcesinfo

Advisory: openwall.com
Researcher: Agostino Sarubbo
Organization: Gentoo
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-9011 (🔍)
GCVE (CVE): GCVE-0-2016-9011
GCVE (VulDB): GCVE-100-98443
SecurityFocus: 93860 - libwmf CVE-2016-9011 Memory Corruption Vulnerability
OSVDB: - CVE-2016-9011 - libwmf - Denial of Service Issue

Entryinfo

Created: 03/24/2017 07:27
Updated: 09/12/2020 21:05
Changes: 03/24/2017 07:27 (72), 09/12/2020 21:05 (3)
Complete: 🔍
Cache ID: 216:061:103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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