NASM listing module buffer overflow

nasm-listingmodule-bo (43441)

High Risk

Description:

NASM is vulnerable to a buffer overflow, caused by improper bounds checking by the listing module. By persuading a victim to open a specially-crafted file, a remote attacker could overflow a buffer and execute arbitrary code on the system with elevated privileges or cause the application to crash.

*CVSS:

Base Score:	6.8
Access Vector:	Network
Access Complexity:	Medium
Authentication:	None
Confidentiality Impact:	Partial
Integrity Impact:	Partial
Availability Impact:	Partial
Temporal Score:	5
Exploitability:	Unproven
Remediation Level:	Official-Fix
Report Confidence:	Confirmed

Consequences:

Gain Access

Remedy:

Upgrade to the latest version of NASM (2.3.1 or later), available from the NASM Web site. See References.

References:

• NASM Web site: The Netwide Assembler: NASM.
• Red Hat Bugzilla Bug 452800: Buffer overflows, EQU miscompile in NASM < 2.03.01.
• BID-29955: NASM Multiple Buffer Overflow Vulnerabilities
• CVE-2008-7177: Buffer overflow in the listing module in Netwide Assembler (NASM) before 2.03.01 has unknown impact and attack vectors, a different vulnerability than CVE-2008-2719.
• SECTRACK ID: 1020378: NASM Buffer Overflows in Listing Module Let Remote Users Execute Arbitrary Code
• VUPEN/ADV-2008-1939: NASM Listing Module Data Handling Buffer Overflow Vulnerability

Platforms Affected:

• NASM NASM 2.0
• NASM NASM 2.01
• NASM NASM 2.02
• NASM NASM 2.03

Reported:

Jun 25, 2008

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