__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN Network Audio System Vulnerabilties [Debian Security Advisory DSA-1273-1] March 28, 2007 19:00 GMT Number R-190 ______________________________________________________________________________ PROBLEM: There are several vulnerabilities in the Network Audio System (NAS). PLATFORM: Debian GNU/Linux 3.1 (stable) DAMAGE: Remote attackers could execute arbitrary code via a long path slave name in a USL socket connection or cause a denial of service. SOLUTION: Upgrade to the appropriate version. ______________________________________________________________________________ VULNERABILITY The risk is LOW. Remote attackers could execute arbitrary code ASSESSMENT: via a long path slave name in a USL socket connection or cause a denial of service. ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/r-190.shtml ORIGINAL BULLETIN: http://www.debian.org/security/2007/dsa-1273 CVE: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name= CVE-2007-1543 CVE-2007-1544 CVE-2007-1545 CVE-2007-1546 CVE-2007-1547 ______________________________________________________________________________ [***** Start Debian Security Advisory DSA-1273-1 *****] Debian Security Advisory DSA-1273-1 nas -- several vulnerabilities Date Reported: 27 Mar 2007 Affected Packages: nas Vulnerable: Yes Security database references: In the Debian bugtracking system: Bug 416038. In the Bugtraq database (at SecurityFocus): BugTraq ID 23017. In Mitre's CVE dictionary: CVE-2007-1543, CVE-2007-1544, CVE-2007-1545, CVE-2007-1546, CVE-2007-1547. More information: Several vulnerabilities have been discovered in nas, the Network Audio System. CVE-2007-1543 A stack-based buffer overflow in the accept_att_local function in server/os/connection.c in nas allows remote attackers to execute arbitrary code via a long path slave name in a USL socket connection. CVE-2007-1544 Integer overflow in the ProcAuWriteElement function in server/dia/audispatch.c allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a large max_samples value. CVE-2007-1545 The AddResource function in server/dia/resource.c allows remote attackers to cause a denial of service (server crash) via a nonexistent client ID. CVE-2007-1546 Array index error allows remote attackers to cause a denial of service (crash) via (1) large num_action values in the ProcAuSetElements function in server/dia/audispatch.c or (2) a large inputNum parameter to the compileInputs function in server/dia/auutil.c. CVE-2007-1547 The ReadRequestFromClient function in server/os/io.c allows remote attackers to cause a denial of service (crash) via multiple simultaneous connections, which triggers a NULL pointer dereference. For the stable distribution (sarge), these problems have been fixed in version 1.7-2sarge1. For the upcoming stable distribution (etch) and the unstable distribution (sid) these problems have been fixed in version 1.8-4. We recommend that you upgrade your nas package. Fixed in: Debian GNU/Linux 3.1 (stable) Source: http://security.debian.org/pool/updates/main/n/nas/nas_1.7.orig.tar.gz http://security.debian.org/pool/updates/main/n/nas/nas_1.7-2sarge1.dsc http://security.debian.org/pool/updates/main/n/nas/nas_1.7-2sarge1.diff.gz Architecture-independent component: http://security.debian.org/pool/updates/main/n/nas/nas-doc_1.7-2sarge1_all.deb Alpha: http://security.debian.org/pool/updates/main/n/nas/libaudio2_1.7-2sarge1_alpha.deb http://security.debian.org/pool/updates/main/n/nas/libaudio-dev_1.7-2sarge1_alpha.deb http://security.debian.org/pool/updates/main/n/nas/nas-bin_1.7-2sarge1_alpha.deb http://security.debian.org/pool/updates/main/n/nas/nas_1.7-2sarge1_alpha.deb AMD64: http://security.debian.org/pool/updates/main/n/nas/libaudio-dev_1.7-2sarge1_amd64.deb http://security.debian.org/pool/updates/main/n/nas/nas_1.7-2sarge1_amd64.deb http://security.debian.org/pool/updates/main/n/nas/libaudio2_1.7-2sarge1_amd64.deb http://security.debian.org/pool/updates/main/n/nas/nas-bin_1.7-2sarge1_amd64.deb ARM: http://security.debian.org/pool/updates/main/n/nas/libaudio2_1.7-2sarge1_arm.deb http://security.debian.org/pool/updates/main/n/nas/libaudio-dev_1.7-2sarge1_arm.deb http://security.debian.org/pool/updates/main/n/nas/nas-bin_1.7-2sarge1_arm.deb http://security.debian.org/pool/updates/main/n/nas/nas_1.7-2sarge1_arm.deb HPPA: http://security.debian.org/pool/updates/main/n/nas/libaudio2_1.7-2sarge1_hppa.deb http://security.debian.org/pool/updates/main/n/nas/nas_1.7-2sarge1_hppa.deb http://security.debian.org/pool/updates/main/n/nas/libaudio-dev_1.7-2sarge1_hppa.deb http://security.debian.org/pool/updates/main/n/nas/nas-bin_1.7-2sarge1_hppa.deb Intel IA-32: http://security.debian.org/pool/updates/main/n/nas/nas_1.7-2sarge1_i386.deb http://security.debian.org/pool/updates/main/n/nas/libaudio-dev_1.7-2sarge1_i386.deb http://security.debian.org/pool/updates/main/n/nas/libaudio2_1.7-2sarge1_i386.deb http://security.debian.org/pool/updates/main/n/nas/nas-bin_1.7-2sarge1_i386.deb Intel IA-64: http://security.debian.org/pool/updates/main/n/nas/nas-bin_1.7-2sarge1_ia64.deb http://security.debian.org/pool/updates/main/n/nas/libaudio2_1.7-2sarge1_ia64.deb http://security.debian.org/pool/updates/main/n/nas/libaudio-dev_1.7-2sarge1_ia64.deb http://security.debian.org/pool/updates/main/n/nas/nas_1.7-2sarge1_ia64.deb Motorola 680x0: http://security.debian.org/pool/updates/main/n/nas/libaudio2_1.7-2sarge1_m68k.deb http://security.debian.org/pool/updates/main/n/nas/libaudio-dev_1.7-2sarge1_m68k.deb http://security.debian.org/pool/updates/main/n/nas/nas_1.7-2sarge1_m68k.deb http://security.debian.org/pool/updates/main/n/nas/nas-bin_1.7-2sarge1_m68k.deb Big endian MIPS: http://security.debian.org/pool/updates/main/n/nas/libaudio-dev_1.7-2sarge1_mips.deb http://security.debian.org/pool/updates/main/n/nas/libaudio2_1.7-2sarge1_mips.deb http://security.debian.org/pool/updates/main/n/nas/nas-bin_1.7-2sarge1_mips.deb http://security.debian.org/pool/updates/main/n/nas/nas_1.7-2sarge1_mips.deb Little endian MIPS: http://security.debian.org/pool/updates/main/n/nas/libaudio2_1.7-2sarge1_mipsel.deb http://security.debian.org/pool/updates/main/n/nas/libaudio-dev_1.7-2sarge1_mipsel.deb http://security.debian.org/pool/updates/main/n/nas/nas-bin_1.7-2sarge1_mipsel.deb http://security.debian.org/pool/updates/main/n/nas/nas_1.7-2sarge1_mipsel.deb PowerPC: http://security.debian.org/pool/updates/main/n/nas/nas_1.7-2sarge1_powerpc.deb http://security.debian.org/pool/updates/main/n/nas/nas-bin_1.7-2sarge1_powerpc.deb http://security.debian.org/pool/updates/main/n/nas/libaudio-dev_1.7-2sarge1_powerpc.deb http://security.debian.org/pool/updates/main/n/nas/libaudio2_1.7-2sarge1_powerpc.deb Sun Sparc: http://security.debian.org/pool/updates/main/n/nas/libaudio2_1.7-2sarge1_sparc.deb http://security.debian.org/pool/updates/main/n/nas/nas_1.7-2sarge1_sparc.deb http://security.debian.org/pool/updates/main/n/nas/libaudio-dev_1.7-2sarge1_sparc.deb http://security.debian.org/pool/updates/main/n/nas/nas-bin_1.7-2sarge1_sparc.deb MD5 checksums of the listed files are available in the original advisory. [***** End Debian Security Advisory DSA-1273-1 *****] _______________________________________________________________________________ CIAC wishes to acknowledge the contributions of Debian for the information contained in this bulletin. _______________________________________________________________________________ CIAC, the Computer Incident Advisory Capability, is the computer security incident response team for the U.S. Department of Energy (DOE) and the emergency backup response team for the National Institutes of Health (NIH). CIAC is located at the Lawrence Livermore National Laboratory in Livermore, California. CIAC is also a founding member of FIRST, the Forum of Incident Response and Security Teams, a global organization established to foster cooperation and coordination among computer security teams worldwide. CIAC services are available to DOE, DOE contractors, and the NIH. 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