Linux Foundation Xen up to 4.3.1 Ocaml xenstored Implementation Reply Message Stored memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.2$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Linux Foundation Xen up to 4.3.1. Affected by this issue is some unknown functionality of the component Ocaml xenstored Implementation. The manipulation as part of Reply Message leads to memory corruption (Stored). This vulnerability is referenced as CVE-2013-4416. No exploit is available. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Linux Foundation Xen up to 4.3.1 (Virtualization Software). This issue affects some unknown processing of the component Ocaml xenstored Implementation. The manipulation as part of a Reply Message leads to a memory corruption vulnerability (Stored). Using CWE to declare the problem leads to 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. Impacted is availability. The summary by CVE is:

The Ocaml xenstored implementation (oxenstored) in Xen 4.1.x, 4.2.x, and 4.3.x allows local guest domains to cause a denial of service (domain shutdown) via a large message reply.

The weakness was published 10/29/2013 by Thomas Sanders with Citrix as Xen Security Advisory 72 - ocaml xenstored mishandles oversized message replies as confirmed mailinglist post (oss-sec). The advisory is shared at seclists.org. The public release has been coordinated with Linux Foundation. The identification of this vulnerability is CVE-2013-4416 since 06/12/2013. The attack may be initiated remotely. Required for exploitation is a simple authentication. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 70831 (Fedora 19 : xen-4.2.3-7.fc19 (2013-20555)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 166587 (OpenSuSE Security Update for xen (openSUSE-SU-2013:1876-1)).

Applying the patch xsa72.patch is able to eliminate this problem. The bugfix is ready for download at seclists.org. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (88335), Tenable (70831), SecurityFocus (BID 63404†), OSVDB (99072†) and Vulnerability Center (SBV-42565†). seclists.org is providing further details. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Name: Stored
Class: Memory corruption / Stored
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: 🔍

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Nessus ID: 70831
Nessus Name: Fedora 19 : xen-4.2.3-7.fc19 (2013-20555)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 867061
OpenVAS Name: Fedora Update for xen FEDORA-2013-20544
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: 🔍
Exposure Time: 🔍

Patch: xsa72.patch

Timelineinfo

06/12/2013 🔍
10/29/2013 +139 days 🔍
10/29/2013 +0 days 🔍
10/29/2013 +0 days 🔍
10/31/2013 +2 days 🔍
11/02/2013 +2 days 🔍
11/11/2013 +9 days 🔍
12/15/2013 +34 days 🔍
06/01/2021 +2725 days 🔍

Sourcesinfo

Vendor: linuxfoundation.org

Advisory: Xen Security Advisory 72 - ocaml xenstored mishandles oversized message replies
Researcher: Thomas Sanders
Organization: Citrix
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2013-4416 (🔍)
GCVE (CVE): GCVE-0-2013-4416
GCVE (VulDB): GCVE-100-11045

OVAL: 🔍

X-Force: 88335
SecurityFocus: 63404
OSVDB: 99072
SecurityTracker: 1029264
Vulnerability Center: 42565 - Xen 4.2.*, 4.3.0 and 4.3.1 Remote Denial of Service via a Large Message Reply, Medium

Misc.: 🔍

Entryinfo

Created: 10/31/2013 09:43
Updated: 06/01/2021 14:34
Changes: 10/31/2013 09:43 (82), 05/17/2017 09:00 (1), 06/01/2021 14:30 (3), 06/01/2021 14:34 (1)
Complete: 🔍
Committer:
Cache ID: 216:B84:103

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