The (1) red_channel_pipes_add_type and (2) red_channel_pipes_add_empty_msg functions in server/red_channel.c in SPICE before 0.12.4 do not properly perform ring loops, which might allow remote attackers to cause a denial of service (reachable assertion and server exit) by triggering a network error.
NOTE: The following CVSS v2.0 metrics and score provided are preliminary and subject to review.
|Base Score:||4.3||Base Metrics:||AV:A/AC:H/Au:S/C:N/I:N/A:C|
|Access Vector:||Adjacent network||Attack Complexity:||High|
|Authentication:||Requires single instance||Confidentiality Impact:||None|
|Integrity Impact:||None||Availability Impact:||Complete|
|Oracle Linux version 6 (spice-server)||ELSA-2013-1192||2013-09-03|
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