#200163: Security Vulnerability in Solaris 8 Directory Functions

Security Vulnerability in Solaris 8 Directory Functions

Category :	Security
Release Phase :	Resolved
Bug Id :	6384114
Product :	Solaris 8 Operating System
Date of Resolved Release :	12-Feb-2008

Due to a security vulnerability, a local unprivileged user may be able to crash a Solaris 8 system (see below for details)

1. Impact

Due to a security vulnerability, a local unprivileged user may be able to crash a Solaris 8 system with a sequence of system calls or commands issued in a specific manner. The ability to crash a system is a type of Denial of Service (DoS).

2. Contributing Factors

This issue can occur in the following releases:

SPARC Platform

Solaris 8 without patch 117350-53

x86 Platform

Solaris 8 without patch 117351-53

Note: Solaris 9 and Solaris 10 are not impacted by this issue.

3. Symptoms

If the described issue occurs, the affected system will panic and may produce a crashdump with a stack trace similar to the following:

    unix:panicsys+0x44(0x10149de0, 0x2a101de5478, 0x104241e0, 0x1, 0x0, , 0x9914001603, , , , 0x10149de0, 0x2a101de5478)
    unix:vpanic+0xcc(0x10149de0, 0x2a101de5478, 0x3c, 0x1, 0xdb890, 0x30008166978)
    unix:panic+0x1c(0x10149de0, 0x104108d0, 0x3c, 0x300033af6c0, 0x0, 0x0)
    genunix:turnstile_block+0x360(0x30008166948, 0x0, 0x30099a4cad8, 0x104108d0, 0x0)
    unix:rw_enter_sleep+0x17c(0x30099a4cad8?)
    unix:rw_enter(0x30099a4cad8, 0x0) - frame recycled
    ufs:ufs_dirfixdotdot+0x1e0(0x300996dc3f8, 0x30099a4c998, 0x300039a1638)
    ufs:ufs_diraddentry+0xbc(0x300039a1638, 0x300045b91f1, 0x3, 0x2, 0x2a101de57a8, 0x300996dc3f8, 0x30099a4c998, 0x30026c98c10)
    ufs:ufs_direnter_lr+0x3ac(0x300039a1638, 0x300045b91f1, 0x3, 0x30099a4c998, 0x300996dc3f8, 0x30026c98c10)
    ufs:ufs_rename+0x250(, 0x3000321b1a0, 0x30002ba06c0?, 0x300045b91f1)
    genunix:vn_rename+0x15c(0xffbefd92, 0x26fe8, 0x0, 0xff3de7a8, 0x0, 0x1)
    genunix:rename+0xc(, 0x26fe8, 0xf000, 0x26540, 0x8000, 0x265d8)
    unix:syscall_trap32+0xa8()

4. Workaround

There is no workaround. Please see the Resolution section below.

5. Resolution

This issue is addressed in the following releases:

SPARC Platform

Solaris 8 with patch 117350-53 or later

x86 Platform

Solaris 8 with patch 117351-53 or later

This Sun Alert notification is being provided to you on an "AS IS" basis. This Sun Alert notification may contain information provided by third parties. The issues described in this Sun Alert notification may or may not impact your system(s). Sun makes no representations, warranties, or guarantees as to the information contained herein. ANY AND ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE HEREBY DISCLAIMED. BY ACCESSING THIS DOCUMENT YOU ACKNOWLEDGE THAT SUN SHALL IN NO EVENT BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES THAT ARISE OUT OF YOUR USE OR FAILURE TO USE THE INFORMATION CONTAINED HEREIN. This Sun Alert notification contains Sun proprietary and confidential information. It is being provided to you pursuant to the provisions of your agreement to purchase services from Sun, or, if you do not have such an agreement, the Sun.com Terms of Use. This Sun Alert notification may only be used for the purposes contemplated by these agreements.

Copyright 2000-2008 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, CA 95054 U.S.A. All rights reserved.

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