Debian: DSA-2153-1: linux-2.6 security update

    Date30 Jan 2011
    CategoryDebian
    31
    Posted ByLinuxSecurity Advisories
    Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leak. The Common Vulnerabilities and Exposures project identifies the following problems:
    -----BEGIN PGP SIGNED MESSAGE-----
    Hash: SHA256
    
    - -------------------------------------------------------------------------
    Debian Security Advisory DSA-2153-1                   security@debian.org
    http://www.debian.org/security/                              dann frazier
    January 30, 2011                       http://www.debian.org/security/faq
    - -------------------------------------------------------------------------
    
    Package        : linux-2.6
    Vulnerability  : privilege escalation/denial of service/information leak
    Problem type   : local/remote
    Debian-specific: no
    CVE Id(s)      : CVE-2010-0435 CVE-2010-3699 CVE-2010-4158 CVE-2010-4162 
                     CVE-2010-4163 CVE-2010-4242 CVE-2010-4243 CVE-2010-4248 
                     CVE-2010-4249 CVE-2010-4258 CVE-2010-4342 CVE-2010-4346 
                     CVE-2010-4526 CVE-2010-4527 CVE-2010-4529 CVE-2010-4565 
                     CVE-2010-4649 CVE-2010-4656 CVE-2010-4668 CVE-2011-0521
    
    Several vulnerabilities have been discovered in the Linux kernel that may lead
    to a privilege escalation, denial of service or information leak.  The Common
    Vulnerabilities and Exposures project identifies the following problems:
    
    CVE-2010-0435
    
        Gleb Napatov reported an issue in the KVM subsystem that allows virtual
        machines to cause a denial of service of the host machine by executing mov
        to/from DR instructions.
    
    CVE-2010-3699
    
        Keir Fraser provided a fix for an issue in the Xen subsystem. A guest can
        cause a denial of service on the host by retaining a leaked reference to a
        device. This can result in a zombie domain, xenwatch process hangs, and xm
        command failures.
    
    CVE-2010-4158
    
        Dan Rosenberg discovered an issue in the socket filters subsystem, allowing
        local unprivileged users to obtain the contents of sensitive kernel memory.
    
    CVE-2010-4162
    
        Dan Rosenberg discovered an overflow issue in the block I/O subsystem that
        allows local users to map large numbers of pages, resulting in a denial of
        service due to invocation of the out of memory killer.
    
    CVE-2010-4163
    
        Dan Rosenberg discovered an issue in the block I/O subsystem. Due to
        improper validation of iov segments, local users can trigger a kernel panic
        resulting in a denial of service.
    
    CVE-2010-4242
    
        Alan Cox reported an issue in the Bluetooth subsystem. Local users with
        sufficient permission to access HCI UART devices can cause a denial of
        service (NULL pointer dereference) due to a missing check for an existing
        tty write operation.
    
    CVE-2010-4243
    
        Brad Spengler reported a denial-of-service issue in the kernel memory
        accounting system. By passing large argv/envp values to exec, local users
        can cause the out of memory killer to kill processes owned by other users.
    
    CVE-2010-4248
    
        Oleg Nesterov reported an issue in the POSIX CPU timers subsystem. Local
        users can cause a denial of service (Oops) due to incorrect assumptions
        about thread group leader behavior.
    
    CVE-2010-4249
    
        Vegard Nossum reported an issue with the UNIX socket garbage collector.
        Local users can consume all of LOWMEM and decrease system performance by
        overloading the system with inflight sockets.
    
    CVE-2010-4258
    
        Nelson Elhage reported an issue in Linux oops handling. Local users may be
        able to obtain elevated privileges if they are able to trigger an oops with
        a process' fs set to KERNEL_DS.
    
    CVE-2010-4342
    
        Nelson Elhage reported an issue in the econet protocol. Remote attackers can
        cause a denial of service by sending an Acorn Universal Networking packet
        over UDP.
    
    CVE-2010-4346
    
        Tavis Ormandy discovered an issue in the install_special_mapping routine
        which allows local users to bypass the mmap_min_addr security restriction.
        Combined with an otherwise low severity local denial of service
        vulnerability (NULL pointer dereference), a local user could obtain elevated
        privileges.
    
    CVE-2010-4526
    
        Eugene Teo reported a race condition in the Linux SCTP implementation.
        Remote users can cause a denial of service (kernel memory corruption) by
        transmitting an ICMP unreachable message to a locked socket.
    
    CVE-2010-4527
    
        Dan Rosenberg reported two issues in the OSS soundcard driver. Local users
        with access to the device (members of group 'audio' on default Debian
        installations) may contain access to sensitive kernel memory or cause a
        buffer overflow, potentially leading to an escalation of privileges.
    
    CVE-2010-4529
    
        Dan Rosenberg reported an issue in the Linux kernel IrDA socket
        implementation on non-x86 architectures. Local users may be able to gain
        access to sensitive kernel memory via a specially crafted IRLMP_ENUMDEVICES
        getsockopt call.
    
    CVE-2010-4565
    
        Dan Rosenberg reported an issue in the Linux CAN protocol implementation.
        Local users can obtain the address of a kernel heap object which might help
        facilitate system exploitation.
    
    CVE-2010-4649
    
        Dan Carpenter reported an issue in the uverb handling of the InfiniBand
        subsystem. A potential buffer overflow may allow local users to cause a
        denial of service (memory corruption) by passing in a large cmd.ne value.
    
    CVE-2010-4656
    
        Kees Cook reported an issue in the driver for I/O-Warrior USB devices.
        Local users with access to these devices maybe able to overrun kernel
        buffers, resulting in a denial of service or privilege escalation.
    
    CVE-2010-4668
    
        Dan Rosenberg reported an issue in the block subsystem. A local user can
        cause a denial of service (kernel panic) by submitting certain 0-length I/O
        requests.
    
    CVE-2011-0521
    
        Dan Carpenter reported an issue in the DVB driver for AV7110 cards.  Local
        users can pass a negative info->num value, corrupting kernel memory and
        causing a denial of service.
    
    For the stable distribution (lenny), this problem has been fixed in
    version 2.6.26-26lenny2.
    
    The following matrix lists additional source packages that were rebuilt for
    compatibility with or to take advantage of this update:
    
                                                 Debian 5.0 (lenny)
         user-mode-linux                         2.6.26-1um-2+26lenny2
    
    We recommend that you upgrade your linux-2.6 and user-mode-linux packages.
    
    Note that these updates will not become active until after your system is
    rebooted.
    
    Further information about Debian Security Advisories, how to apply
    these updates to your system and frequently asked questions can be
    found at: http://www.debian.org/security/
    
    Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it.
    
    You are not authorised to post comments.

    Comments powered by CComment

    LinuxSecurity Poll

    What do you think of the articles on LinuxSecurity?

    No answer selected. Please try again.
    Please select either existing option or enter your own, however not both.
    Please select minimum 0 answer(s) and maximum 3 answer(s).
    /main-polls/24-what-do-you-think-of-the-quality-of-the-articles-on-linuxsecurity?task=poll.vote&format=json
    24
    radio
    [{"id":"87","title":"Excellent, don't change a thing!","votes":"7","type":"x","order":"1","pct":58.33,"resources":[]},{"id":"88","title":"Should be more technical","votes":"3","type":"x","order":"2","pct":25,"resources":[]},{"id":"89","title":"Should include more HOWTOs","votes":"2","type":"x","order":"3","pct":16.67,"resources":[]}]["#ff5b00","#4ac0f2","#b80028","#eef66c","#60bb22","#b96a9a","#62c2cc"]["rgba(255,91,0,0.7)","rgba(74,192,242,0.7)","rgba(184,0,40,0.7)","rgba(238,246,108,0.7)","rgba(96,187,34,0.7)","rgba(185,106,154,0.7)","rgba(98,194,204,0.7)"]350
    bottom200

    We use cookies to provide and improve our services. By using our site, you consent to our Cookie Policy.