NASM preproc.c buffer overflow
| nasm-preprocc-bo (18540) |  High Risk |
Description:
NASM is vulnerable to a buffer overflow, caused by improper bounds checking in the error function in the preproc.c file. By creating a specially-crafted .asm file, a local attacker could overflow a buffer and execute arbitrary code on the system with privileges of the user. In order for the attacker to exploit this vulnerability, the attacker must trick the victim into assembling a malicious .asm file on the victim's local system.
Platforms Affected:
- Canonical, Ubuntu 4.10
- Debian, Debian Linux 3.0
- Gentoo, Linux
- NASM, NASM 0.98.38
- RedHat, Enterprise Linux 2.1 ES
- RedHat, Enterprise Linux 2.1 AS
- RedHat, Enterprise Linux 2.1 WS
- RedHat, Enterprise Linux 3 AS
- RedHat, Enterprise Linux 3 ES
- RedHat, Enterprise Linux 3 WS
- RedHat, Enterprise Linux 3 Desktop
- RedHat, Enterprise Linux 4 WS
- RedHat, Enterprise Linux 4 ES
- RedHat, Enterprise Linux 4 AS
- RedHat, Enterprise Linux 4 Desktop
- RedHat, Linux Advanced Workstation 2.1 Itanium
- Turbolinux, Turbolinux 10 Desktop
- Turbolinux, Turbolinux 10 F...
- Turbolinux, Turbolinux 10 Server
- Turbolinux, Turbolinux 8 Server
- Turbolinux, Turbolinux Home
Remedy:
For Ubuntu Linux:
Upgrade to the latest nasm package (0.98.38-1ubuntu0.1 or later), as listed in USN-45-1 December 22, 2004 for more information. See References.
For Gentoo Linux:
Upgrade to the latest version of nasm (0.98.38-r1 or later), as listed in GLSA 200412-20 . See References.
For Debian GNU/Linux 3.0 (alias woody):
Upgrade to the latest version of nasm (0.98.28cvs-1woody2 or later), as listed in Debian Security Advisory Debian Security Advisory
DSA-623-1 . See References.
For Red Hat Linux:
Refer to RHSA-2005:381-06 for patch, upgrade, or suggested workaround information. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
Consequences:
Gain Access
References:
- BugTraq Mailing List, Thu Dec 16 2004 - 03:47:12 CST, DJB's students release 44 *nix software vulnerability advisories at http://archives.neohapsis.com/archives/bugtraq/2004-12/0195.html.
- CIAC Information Bulletin P-089, Buffer Overflow in 'nasm' at http://www.ciac.org/ciac/bulletins/p-089.shtml.
- University of Illinois Chicago Web site, NASM 0.98.38 error() overflows buff[] at http://tigger.uic.edu/~jlongs2/holes/nasm.txt.
- BID-11991: NASM Error Preprocessor Directive Buffer Overflow Vulnerability
- CVE-2004-1287: Buffer overflow in the error function in preproc.c for NASM 0.98.38 1.2 allows attackers to execute arbitrary code via a crafted asm file, a different vulnerability than CVE-2005-1194.
- DSA-623: nasm -- buffer overflow
- GLSA-200412-20: NASM: Buffer overflow vulnerability
- MDKSA-2005:004: Updated nasm packages fix buffer overflow vulnerability
- RHSA-2005-381: nasm security update
Reported:
Dec 15, 2004
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