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7.9	$0-$5k	0.00

Summaryinfo

A vulnerability labeled as critical has been found in expat. The impacted element is an unknown function of the component Overflow Protection. Executing a manipulation can lead to memory corruption. This vulnerability is handled as CVE-2016-4472. The attack can be executed remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in expat (the affected version unknown) and classified as critical. This vulnerability affects an unknown part of the component Overflow Protection. 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 confidentiality, integrity, and availability. CVE summarizes:

The overflow protection in Expat is removed by compilers with certain optimization settings, which allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via crafted XML data. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-1283 and CVE-2015-2716.

The weakness was released 06/30/2016 (Website). The advisory is available at sourceforge.net. This vulnerability was named CVE-2016-4472 since 05/02/2016. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 91729 (Ubuntu 12.04 LTS : xmlrpc-c vulnerabilities (USN-3013-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 196512 (Ubuntu Security Notification for Xmlrpc-c Vulnerabilities (USN-3013-1)).

Upgrading 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 (91729), SecurityFocus (BID 91528†) and CERT Bund (WID-SEC-2025-0044). Entries connected to this vulnerability are available at VDB-88027, VDB-93486, VDB-99040 and VDB-99041. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

• Ubuntu Linux
• SUSE Linux
• Open Source expat
• Red Hat Fedora

Productinfo

Name

• expat

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.1
VulDB Meta Temp Score: 7.9

VulDB Base Score: 8.1
VulDB Temp Score: 7.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.1
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: 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

Nessus ID: 91729
Nessus Name: Ubuntu 12.04 LTS : xmlrpc-c vulnerabilities (USN-3013-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 802379
OpenVAS Name: Fedora Update for expat FEDORA-2016-7c6e7a9265
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/02/2016 🔍
06/20/2016 +49 days 🔍
06/21/2016 +1 days 🔍
06/30/2016 +9 days 🔍
06/30/2016 +0 days 🔍
06/30/2016 +0 days 🔍
07/04/2016 +4 days 🔍
08/02/2025 +3316 days 🔍

Sourcesinfo

Advisory: USN-3013-1
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-4472 (🔍)
GCVE (CVE): GCVE-0-2016-4472
GCVE (VulDB): GCVE-100-88546
SecurityFocus: 91528 - Expat CVE-2016-4472 Incomplete Fix Remote Code Execution Vulnerability
CERT Bund: WID-SEC-2025-0044 - expat: Schwachstelle ermöglicht Codeausführung

See also: 🔍

Entryinfo

Created: 07/04/2016 10:06
Updated: 08/02/2025 16:49
Changes: 07/04/2016 10:06 (60), 02/15/2019 15:26 (14), 08/26/2022 10:31 (4), 08/02/2025 16:49 (23)
Complete: 🔍
Cache ID: 216:094:103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Discussion

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