VDB-120076 · CVE-2018-12933 · GCVE-0-2018-12933

Wine 3.7 enhmetafile.c PlayEnhMetaFileRecord pCreatePen->ihPen out-of-bounds write

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
8.5	$0-$5k	0.00

Summaryinfo

A vulnerability described as critical has been identified in Wine 3.7. Affected by this vulnerability is the function PlayEnhMetaFileRecord of the file enhmetafile.c. Executing a manipulation of the argument pCreatePen->ihPen can lead to out-of-bounds write. This vulnerability is handled as CVE-2018-12933. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in Wine 3.7. It has been declared as critical. This vulnerability affects the function PlayEnhMetaFileRecord of the file enhmetafile.c. The manipulation of the argument pCreatePen->ihPen with an unknown input leads to a out-of-bounds write vulnerability. The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

PlayEnhMetaFileRecord in enhmetafile.c in Wine 3.7 allows attackers to cause a denial of service (out-of-bounds write) or possibly have unspecified other impact because the attacker controls the pCreatePen->ihPen array index.

The bug was discovered 04/17/2018. The weakness was released 06/28/2018 (Website). The advisory is shared for download at bugs.launchpad.net. This vulnerability was named CVE-2018-12933 since 06/28/2018. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 72 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Entry connected to this vulnerability is available at VDB-120075. Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

Wine

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.5

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Patch: source.winehq.org

Timelineinfo

04/17/2018 🔍
06/28/2018 +71 days 🔍
06/28/2018 +0 days 🔍
06/28/2018 +0 days 🔍
06/29/2018 +1 days 🔍
03/29/2023 +1734 days 🔍

Sourcesinfo

Advisory: 8d2676fd14f130f9e8f06744743423168bf8d18d
Status: Not defined

CVE: CVE-2018-12933 (🔍)
GCVE (CVE): GCVE-0-2018-12933
GCVE (VulDB): GCVE-100-120076
See also: 🔍

Entryinfo

Created: 06/29/2018 08:55
Updated: 03/29/2023 12:20
Changes: 06/29/2018 08:55 (59), 02/23/2020 09:10 (1), 03/29/2023 12:20 (4)
Complete: 🔍
Cache ID: 216::103