Bug 256621 (CVE-2007-4534)

Summary: CVE-2007-453{3,4,5} Vavoom multiple vulnerabilities
Product: [Fedora] Fedora Reporter: Lubomir Kundrak <lkundrak>
Component: vavoomAssignee: Hans de Goede <hdegoede>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: low Docs Contact:
Priority: low    
Version: 7Keywords: Security
Target Milestone: ---   
Target Release: ---   
Hardware: All   
OS: All   
URL: http://aluigi.altervista.org/adv/vaboom2-adv.txt
Whiteboard: impact=critical
Fixed In Version: 1.24-3.fc7 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2007-09-04 22:09:44 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:

Description Lubomir Kundrak 2007-08-27 14:55:19 UTC
Three problems were identified in Vavoom. See URL for original advisory
containing the details.

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A] Say format string
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format string vulnerability exploitable through the sending of a chat
message, the BroadcastPrintf function is called passing a string
containing the name of the user plus his message without the proper
format argument.

Additional notes:

Please do an update as soon as possible, as first two flaws imply the
possibility to execute arbitrary code on behalf of the running server.

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B] BroadcastPrintf buffer-overflow
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buffer-overflow vulnerability located in the BroadcastPrintf function,
the steps for exploiting it are the same of the previous bug.

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C] "NewLen >= 0" assertion failed
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a failed assert in the following function called, for example, when a
string is passed with an invalid size allows an attacker to terminate
the server.

Comment 2 Hans de Goede 2007-08-27 17:30:35 UTC
I've contacted upstream about this, usually they are very quick with responses
to normal bugs, so I expect a fix from them shortly.


Comment 3 Fedora Update System 2007-09-04 22:09:42 UTC
vavoom-1.24-3.fc7 has been pushed to the Fedora 7 stable repository.  If problems still persist, please make note of it in this bug report.