Sun Security Advisory - The Solaris Volume Manager (SVM) under Solaris 9 is susceptible to a local denial of service attack.
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<tr bgcolor=#666699><td><font size=2 color=#ffffff><b>document id</b></font></td>
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<td><font size=2 color=#ffffff><b>Synopsis</b></font></td>
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<td><font size=2 color=#ffffff><b>Date</b></font></td>
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<tr bgcolor=#CCCCE7><td><font size=2><b>57598</b></font></td>
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<td><font size=2><b>Security Vulnerability With Solaris Volume Manager (SVM)</b></font></td>
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<td><font size=2><b>16 Jul 2004</b></font></td>
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<td><font size=2 color=#ffffff><b><a name=Description>Description</a></b></font></td>
<td align=right><b><a href="#top"><font size=2 color=#ffffff>Top</font></a></b></td></tr></table>
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Sun(sm) Alert Notification
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Sun Alert ID: 57598
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Synopsis: Security Vulnerability With Solaris Volume Manager (SVM)
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Category: Security
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Product: Solaris, Solaris Volume Manager (SVM)
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BugIDs: 5046783
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Avoidance: Patch
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State: Resolved
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Date Released: 16-Jul-2004
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Date Closed: 16-Jul-2004
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Date Modified:
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1. Impact
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A local unprivileged user may be able to panic Solaris 9 systems which have Solaris Volume Manager (SVM) devices configured. This is a type of Denial of Service (DoS) attack.
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2. Contributing Factors
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This issue can occur in the following releases:
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<b>SPARC Platform</b>
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Solaris 9 without patch <a href="findPatch.pl?patchId=113073&rev=13">113073-13</a>
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<b>x86 Platform</b>
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Solaris 9 without patch <a href="findPatch.pl?patchId=113994&rev=22">113994-22</a>
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A system is only vulnerable to this issue if SVM devices are configured, which can be determined by running the metastat(1M) command. If SVM devices exist, output will be similar to the following:
</p><pre> d0: Mirror
Submirror 0: d10
State: Okay
Pass: 1
Read option: roundrobin (default)
Write option: parallel (default)
Size: 4198392 blocks
d10: Submirror of d0
State: Okay
Size: 4198392 blocks
Stripe 0:
Device Start Block Dbase State Hot Spare
c0t1d0s4 0 No Okay </pre><p>
<b>Note:</b> Solstice Disksuite (SDS) 4.x is not affected; hence Solaris 7 and 8 with SDS installed is not affected.
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3. Symptoms
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Should this issue occur, the system will produce a stack trace similiar to the following:
</p><pre> vpanic(......)
vmem_hash_delete+0xdc(.....)
vmem_xfree+0x1c(.....)
mirror_admin_ioctl+0x888(......)
md_admin_ioctl+0x130(.....)
mdioctl+0x90(......)
ioctl+0x184(......)
syscall_trap32+0xa8(......) </pre></font><table width=100% cellpadding=2 cellspacing=0 border=0><tr bgcolor=#999999>
<td><font size=2 color=#ffffff><b><a name=Solution-Summary>Solution Summary</a></b></font></td>
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4. Relief/Workaround
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There is no workaround. Please see the "Resolution" section below.
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5. Resolution
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This issue is addressed in the following releases:
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<b>SPARC Platform</b>
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Solaris 9 with patch <a href="findPatch.pl?patchId=113073&rev=13">113073-13</a> or later
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</ul><p>
<b>x86 Platform</b>
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<li>
Solaris 9 with patch <a href="findPatch.pl?patchId=113994&rev=22">113994-22</a> or later
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</ul><p>
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