[UNIX] MPlayer MMST and Real RTSP Multiple Heap Overflows

From: SecuriTeam (support_at_securiteam.com)
Date: 04/25/05

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      MPlayer MMST and Real RTSP Multiple Heap Overflows
    ------------------------------------------------------------------------

    SUMMARY

    Buffer Overflows were found in MpPayer MMST and Real RTSP allow attackers
    to execute arbitrary code.

    DETAILS

    Vulnerable Systems:
     * MPlayer version 1.0pre6 and prior (including pre6a)

    Immune Systems:
     * MPlayer version 1.0pre7

    Two vulnerabilities were identified in MPlayer, which could be exploited
    by remote attackers to execute arbitrary commands. The first flaw is due
    to a heap overflow error in the MMST code when handling multiple stream
    IDs, which may be exploited via a malicious server to compromise a
    vulnerable system. The second vulnerability is due to a heap overflow
    error in the Real RTSP code when processing multiple lines (more than
    "MAX_FIELDS" lines), which may be exploited via a malicious server to
    cause a denial of service and potentially compromise a vulnerable system.

    Vendor Status:
    The vendor has released patch:
    <http://www.mplayerhq.hu/MPlayer/patches/rtsp_fix_20050415.diff>
    http://www.mplayerhq.hu/MPlayer/patches/rtsp_fix_20050415.diff
     <http://www.mplayerhq.hu/MPlayer/patches/mmst_fix_20050415.diff>
    http://www.mplayerhq.hu/MPlayer/patches/mmst_fix_20050415.diff

    ADDITIONAL INFORMATION

    The information has been provided by FrSIRT.
    The original article can be found at:
    <http://www.frsirt.com/english/advisories/2005/0369>
    http://www.frsirt.com/english/advisories/2005/0369

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