Debian Security Advisory

DSA-495-1 linux-kernel-2.4.16-arm -- several vulnerabilities

Date Reported:
26 Apr 2004
Affected Packages:
kernel-source-2.4.16 kernel-patch-2.4.16-arm kernel-image-2.4.16-lart kernel-image-2.4.16-netwinder kernel-image-2.4.16-riscpc
Security database references:
In the Bugtraq database (at SecurityFocus): BugTraq ID 10141, BugTraq ID 10152, BugTraq ID 7112, BugTraq ID 9570, BugTraq ID 9691, BugTraq ID 9985, BugTraq ID 10152.
In Mitre's CVE dictionary: CVE-2003-0127, CVE-2004-0003, CVE-2004-0010, CVE-2004-0109, CVE-2004-0177, CVE-2004-0178.
More information:

Several serious problems have been discovered in the Linux kernel. This update takes care of Linux 2.4.16 for the ARM architecture. The Common Vulnerabilities and Exposures project identifies the following problems that will be fixed with this update:

  • CAN-2003-0127

    The kernel module loader allows local users to gain root privileges by using ptrace to attach to a child process that is spawned by the kernel.

  • CAN-2004-0003

    A vulnerability has been discovered in the R128 DRI driver in the Linux kernel which could potentially lead an attacker to gain unauthorised privileges. Alan Cox and Thomas Biege developed a correction for this.

  • CAN-2004-0010

    Arjan van de Ven discovered a stack-based buffer overflow in the ncp_lookup function for ncpfs in the Linux kernel, which could lead an attacker to gain unauthorised privileges. Petr Vandrovec developed a correction for this.

  • CAN-2004-0109

    zen-parse discovered a buffer overflow vulnerability in the ISO9660 filesystem component of Linux kernel which could be abused by an attacker to gain unauthorised root access. Sebastian Krahmer and Ernie Petrides developed a correction for this.

  • CAN-2004-0177

    Solar Designer discovered an information leak in the ext3 code of Linux. In a worst case a local attacker could obtain sensitive information (such as cryptographic keys in another worst case) which would otherwise never hit disk media. Theodore Ts'o developed a correction for this.

  • CAN-2004-0178

    Andreas Kies discovered a denial of service condition in the Sound Blaster driver in Linux. He also developed a correction for this.

These problems are also fixed by upstream in Linux 2.4.26 and will be fixed in Linux 2.6.6.

The following security matrix explains which kernel versions for which architectures are already fixed and which will be removed instead.

Architecture stable (woody) unstable (sid)
source 2.4.16-1woody2 2.4.25-3
arm/patch 20040419 20040316
arm/lart 20040419 2.4.25-4
arm/netwinder 20040419 2.4.25-4
arm/riscpc 20040419 2.4.25-4

We recommend that you upgrade your kernel packages immediately, either with a Debian provided kernel or with a self compiled one.

Vulnerability matrix for CAN-2004-0109

Fixed in:

Debian GNU/Linux 3.0 (woody)

Architecture-independent component:

MD5 checksums of the listed files are available in the original advisory.