Fabrice Bellard QEMU 0.8.2 cirrus_invalidate_region memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.00

A vulnerability, which was classified as critical, has been found in Fabrice Bellard QEMU 0.8.2 (Virtualization Software). This issue affects the function cirrus_invalidate_region. The manipulation with an unknown input leads to a memory corruption vulnerability. 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 confidentiality, integrity, and availability. The summary by CVE is:

Multiple heap-based buffer overflows in the cirrus_invalidate_region function in the Cirrus VGA extension in QEMU 0.8.2, as used in Xen and possibly other products, might allow local users to execute arbitrary code via unspecified vectors related to "attempting to mark non-existent regions as dirty," aka the "bitblt" heap overflow.

The bug was discovered 09/11/2008. The weakness was released 05/01/2007 by Tavis Ormandy (Website). It is possible to read the advisory at redhat.com. The identification of this vulnerability is CVE-2007-1320 since 03/07/2007. The exploitation is known to be easy. Attacking locally is a requirement. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit.

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 67486 (Oracle Linux 5 : xen (ELSA-2007-0323)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165646 (SUSE Enterprise Linux Security Update (SUSE-SR:2009:002)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 6 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (34041) and Tenable (67486). Entries connected to this vulnerability are available at 36553, 36552, 39488 and 39487.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 9.3
VulDB Meta Temp Score: 8.4

VulDB Base Score: 9.3
VulDB Temp Score: 8.4
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CVSSv2info

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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: Yes
Remote: No

Availability: 🔍
Status: Proof-of-Concept

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Nessus ID: 67486
Nessus Name: Oracle Linux 5 : xen (ELSA-2007-0323)
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OpenVAS ID: 58336
OpenVAS Name: Debian Security Advisory DSA 1284-1 (qemu)
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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
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Timelineinfo

03/07/2007 🔍
05/01/2007 +55 days 🔍
05/01/2007 +0 days 🔍
05/01/2007 +0 days 🔍
05/01/2007 +0 days 🔍
05/02/2007 +0 days 🔍
05/02/2007 +0 days 🔍
05/08/2007 +6 days 🔍
10/02/2007 +147 days 🔍
09/11/2008 +345 days 🔍
07/12/2013 +1765 days 🔍
03/13/2015 +609 days 🔍
07/18/2019 +1588 days 🔍

Sourcesinfo

Vendor: bellard.org

Advisory: redhat.com
Researcher: Tavis Ormandy
Status: Not defined

CVE: CVE-2007-1320 (🔍)
OVAL: 🔍

X-Force: 34041
Vulnerability Center: 15028 - QEMU 0.8.2 Multiple Local Buffer Overflow and Denial of Service Vulnerabilities, Medium
SecurityFocus: 23731 - QEMU Multiple Local Vulnerabilities
Secunia: 25073
OSVDB: 35494 - QEMU Cirrus VGA Extension cirrus_invalidate_region Function Multiple Overflows
Vupen: ADV-2007-1597

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Entryinfo

Created: 03/13/2015 14:56
Updated: 07/18/2019 17:45
Changes: 03/13/2015 14:56 (83), 07/18/2019 17:45 (3)
Complete: 🔍

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