Bochs 2.3 iodev/ne2k.cc bx_ne2k_c::rx_frame memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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8.8$0-$5k0.00

A vulnerability, which was classified as critical, has been found in Bochs 2.3. This issue affects the function bx_ne2k_c::rx_frame of the file iodev/ne2k.cc. 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:

Heap-based buffer overflow in the bx_ne2k_c::rx_frame function in iodev/ne2k.cc in the emulated NE2000 device in Bochs 2.3 allows local users of the guest operating system to write to arbitrary memory locations and gain privileges on the host operating system via vectors that cause TXCNT register values to exceed the device memory size, aka "RX Frame heap overflow."

The weakness was released 05/31/2007 by Tavis Ormandy (Website). The advisory is shared at taviso.decsystem.org. The identification of this vulnerability is CVE-2007-2893 since 05/29/2007. The exploitation is known to be easy. An attack has to be approached locally. No form of authentication is needed for a successful exploitation. Technical details as well as a public exploit are known.

A public exploit has been developed in ANSI C. The exploit is available at securityfocus.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 25859 (Debian DSA-1351-1 : bochs - buffer overflow), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (34508) and Tenable (25859). Entries connected to this vulnerability are available at 36555, 36554 and 37002.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.3
VulDB Meta Temp Score: 8.8

VulDB Base Score: 9.3
VulDB Temp Score: 8.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

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

Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 25859
Nessus Name: Debian DSA-1351-1 : bochs - buffer overflow
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 58524
OpenVAS Name: Debian Security Advisory DSA 1351-1 (bochs)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

Timelineinfo

05/01/2007 🔍
05/29/2007 +28 days 🔍
05/29/2007 +0 days 🔍
05/31/2007 +2 days 🔍
05/31/2007 +0 days 🔍
05/31/2007 +0 days 🔍
05/31/2007 +0 days 🔍
08/13/2007 +73 days 🔍
08/20/2007 +7 days 🔍
03/15/2015 +2764 days 🔍
07/20/2021 +2319 days 🔍

Sourcesinfo

Advisory: taviso.decsystem.org
Researcher: Tavis Ormandy
Status: Not defined
Confirmation: 🔍

CVE: CVE-2007-2893 (🔍)
OVAL: 🔍

X-Force: 34508
Vulnerability Center: 15893 - Bochs Heap-Based Buffer Overflow Allows Users to Gain Root Privileges, High
SecurityFocus: 24246 - Bochs Buffer Overflow and Denial Of Service Vulnerabilities
Secunia: 25470 - Bochs NE2000 RX Frame Overflow and Disk Controller Denial of Service, Moderately Critical
OSVDB: 36799 - Bochs NE2000 iodev/ne2k.cc bx_ne2k_c::rx_frame Function Local Overflow
Vupen: ADV-2007-1936

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 03/15/2015 15:58
Updated: 07/20/2021 08:29
Changes: 03/15/2015 15:58 (64), 08/24/2017 09:04 (19), 07/20/2021 08:29 (3)
Complete: 🔍

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