Fabrice Bellard QEMU 1.7.0 State Loader hw/pci/pcie_aer.c log_max/log_num memory corruption

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5.2$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Fabrice Bellard QEMU 1.7.0. The affected element is an unknown function of the file hw/pci/pcie_aer.c of the component State Loader. The manipulation of the argument log_max/log_num results in memory corruption. This vulnerability is reported as CVE-2013-4529. No exploit exists. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability was found in Fabrice Bellard QEMU 1.7.0 (Virtualization Software). It has been classified as problematic. Affected is an unknown function of the file hw/pci/pcie_aer.c of the component State Loader. The manipulation of the argument log_max/log_num 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. CVE summarizes:

Buffer overflow in hw/pci/pcie_aer.c in QEMU before 1.7.2 allows remote attackers to cause a denial of service and possibly execute arbitrary code via a large log_num value in a savevm image.

The weakness was disclosed 02/18/2014 by Petr Matousek as Bug 1066353 as confirmed bug report (Bugzilla). The advisory is shared for download at bugzilla.redhat.com. This vulnerability is traded as CVE-2013-4529 since 06/12/2013. The exploitability is told to be easy. The attack needs to be approached locally. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 74047 (Fedora 20 : qemu-1.6.2-5.fc20 (2014-6288)), 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 168804 (SUSE Enterprise Linux Security update for xen (SUSE-SU-2016:1318-1)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.qemu.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 (93229), Tenable (74047), SecurityFocus (BID 67483†), OSVDB (106067†) and Vulnerability Center (SBV-45700†). The entries VDB-13023, VDB-13254, VDB-13266 and VDB-13267 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

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: 🔍
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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: 74047
Nessus Name: Fedora 20 : qemu-1.6.2-5.fc20 (2014-6288)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 80056
OpenVAS Name: Oracle Linux Local Check: ELSA-2014-0927
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: git.qemu.org

Timelineinfo

06/12/2013 🔍
02/18/2014 +251 days 🔍
02/18/2014 +0 days 🔍
05/16/2014 +87 days 🔍
05/19/2014 +3 days 🔍
05/22/2014 +3 days 🔍
08/07/2014 +77 days 🔍
11/04/2014 +89 days 🔍
06/20/2021 +2420 days 🔍

Sourcesinfo

Vendor: bellard.org

Advisory: Bug 1066353
Researcher: Petr Matousek
Status: Confirmed

CVE: CVE-2013-4529 (🔍)
GCVE (CVE): GCVE-0-2013-4529
GCVE (VulDB): GCVE-100-13272

OVAL: 🔍

X-Force: 93229 - QEMU pcie_aer.c buffer overflow, Medium Risk
SecurityFocus: 67483 - QEMU Multiple Memory Corruption Vulnerabilities
OSVDB: 106067
Vulnerability Center: 45700 - Qemu <1.7.2 Remote Code Execution and DoS due to Buffer Overrun in hw/pci/pcie_aer, High

See also: 🔍

Entryinfo

Created: 05/22/2014 11:04
Updated: 06/20/2021 07:27
Changes: 05/22/2014 11:04 (77), 06/03/2017 07:49 (6), 06/20/2021 07:27 (3)
Complete: 🔍
Cache ID: 216:963:103

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