XenSource Xen 4.2/4.3/4.4/4.5 QEMU PCNET controller 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 classified as problematic has been found in XenSource Xen 4.2/4.3/4.4/4.5. This vulnerability affects unknown code of the component QEMU PCNET controller. Performing a manipulation results in memory corruption. This vulnerability is reported as CVE-2015-3209. No exploit exists. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability, which was classified as problematic, was found in XenSource Xen 4.2/4.3/4.4/4.5 (Virtualization Software). This affects some unknown processing of the component QEMU PCNET controller. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Heap-based buffer overflow in the PCNET controller in QEMU allows remote attackers to execute arbitrary code by sending a packet with TXSTATUS_STARTPACKET set and then a crafted packet with TXSTATUS_DEVICEOWNS set.

The weakness was disclosed 06/10/2015 by Kurt Seifried as XSA-135 as confirmed security advisory (Website). The advisory is shared at xenbits.xen.org. This vulnerability is uniquely identified as CVE-2015-3209 since 04/10/2015. The exploitability is told to be easy. An attack has to be approached locally. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 84139 (OracleVM 3.3 : xen (OVMSA-2015-0067)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family OracleVM Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 196133 (Ubuntu Security Notification for Qemu, Qemu-kvm Vulnerabilities (USN-2630-1)).

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (103740), Tenable (84139), SecurityFocus (BID 74809†) and Vulnerability Center (SBV-50615†). The entry VDB-75661 is pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.9
VulDB Temp Score: 5.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 84139
Nessus Name: OracleVM 3.3 : xen (OVMSA-2015-0067)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 703284
OpenVAS Name: Debian Security Advisory DSA 3284-1 (qemu - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
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Timelineinfo

04/10/2015 🔍
05/13/2015 +33 days 🔍
06/10/2015 +28 days 🔍
06/10/2015 +0 days 🔍
06/10/2015 +0 days 🔍
06/11/2015 +1 days 🔍
06/12/2015 +1 days 🔍
06/15/2015 +3 days 🔍
06/18/2015 +3 days 🔍
05/20/2022 +2528 days 🔍

Sourcesinfo

Vendor: citrix.com

Advisory: XSA-135
Researcher: Kurt Seifried
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-3209 (🔍)
GCVE (CVE): GCVE-0-2015-3209
GCVE (VulDB): GCVE-100-75837

OVAL: 🔍

X-Force: 103740 - Xen QEMU PCNET controller buffer overflow
SecurityFocus: 74809 - QEMU 'net/slirp.c' Insecure Temporary File Creation Vulnerability
SecurityTracker: 1032545
Vulnerability Center: 50615 - QEMU Remote Code Execution due to a Flaw in the AMD PCnet Ethernet Emulation, High

See also: 🔍

Entryinfo

Created: 06/11/2015 11:11
Updated: 05/20/2022 22:43
Changes: 06/11/2015 11:11 (76), 07/01/2017 07:52 (4), 05/20/2022 22:34 (3), 05/20/2022 22:43 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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