Debian Security Advisory

DSA-1865-1 linux-2.6 -- denial of service/privilege escalation

Date Reported:
16 Aug 2009
Affected Packages:
Security database references:
In Mitre's CVE dictionary: CVE-2009-1385, CVE-2009-1389, CVE-2009-1630, CVE-2009-1633, CVE-2009-2692.
More information:

Several vulnerabilities have been discovered in the Linux kernel that may lead to denial of service or privilege escalation. The Common Vulnerabilities and Exposures project identifies the following problems:

  • CVE-2009-1385

    Neil Horman discovered a missing fix from the e1000 network driver. A remote user may cause a denial of service by way of a kernel panic triggered by specially crafted frame sizes.

  • CVE-2009-1389

    Michael Tokarev discovered an issue in the r8169 network driver. Remote users on the same LAN may cause a denial of service by way of a kernel panic triggered by receiving a large size frame.

  • CVE-2009-1630

    Frank Filz discovered that local users may be able to execute files without execute permission when accessed via an nfs4 mount.

  • CVE-2009-1633

    Jeff Layton and Suresh Jayaraman fixed several buffer overflows in the CIFS filesystem which allow remote servers to cause memory corruption.

  • CVE-2009-2692

    Tavis Ormandy and Julien Tinnes discovered an issue with how the sendpage function is initialized in the proto_ops structure. Local users can exploit this vulnerability to gain elevated privileges.

For the oldstable distribution (etch), this problem has been fixed in version 2.6.18.dfsg.1-24etch3.

The following matrix lists additional packages that were rebuilt for compatibility with or to take advantage of this update:

  Debian 4.0 (etch)
fai-kernels 1.17+etch.24etch3
user-mode-linux 2.6.18-1um-2etch.24etch3

We recommend that you upgrade your linux-2.6, fai-kernels, and user-mode-linux packages.

Note: Debian carefully tracks all known security issues across every linux kernel package in all releases under active security support. However, given the high frequency at which low-severity security issues are discovered in the kernel and the resource requirements of doing an update, updates for lower priority issues will normally not be released for all kernels at the same time. Rather, they will be released in a staggered or "leap-frog" fashion.

Fixed in:

Debian GNU/Linux 4.0 (etch)

Architecture-independent component:
HP Precision:
Intel IA-32:
Intel IA-64:
Little-endian MIPS:
IBM S/390:
Sun Sparc:

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