ClamAV 'get_unicode_name()' Off-By-One Heap Based Buffer Overflow Vulnerability

BID:32207

Info

ClamAV 'get_unicode_name()' Off-By-One Heap Based Buffer Overflow Vulnerability

Bugtraq ID: 32207
Class: Boundary Condition Error
CVE: CVE-2008-5050
Remote: Yes
Local: No
Published: Nov 09 2008 12:00AM
Updated: Feb 13 2009 03:48PM
Credit: Moritz Jodeit
Vulnerable: Ubuntu Ubuntu Linux 8.10 sparc
Ubuntu Ubuntu Linux 8.10 powerpc
Ubuntu Ubuntu Linux 8.10 lpia
Ubuntu Ubuntu Linux 8.10 i386
Ubuntu Ubuntu Linux 8.10 amd64
SuSE SUSE Linux Enterprise Server 9 SP3
SuSE SUSE Linux Enterprise Server 9
SuSE SUSE Linux Enterprise Server 10 SP2
SuSE SUSE Linux Enterprise Server 10 SP1
SuSE SUSE Linux Enterprise Server 10
SuSE SUSE Linux Enterprise SDK 10 SP1
SuSE SUSE Linux Enterprise SDK 10
SuSE SUSE Linux Enterprise Desktop 10 SP2
SuSE SUSE Linux Enterprise Desktop 10 SP1
SuSE SUSE Linux Enterprise Desktop 10
SuSE SUSE Linux Enterprise 10 SP2 DEBUGINFO
SuSE SUSE Linux Enterprise 10 SP1 DEBUGINFO
SuSE SUSE Linux Enterprise 10 SP1 DEBUGINFO
SuSE Linux Professional 10.2 x86_64
SuSE Linux Personal 10.2 x86_64
Stonesoft StoneGate High Availability Firewall and VPN 4.3
S.u.S.E. UnitedLinux 1.0
S.u.S.E. SuSE Linux School Server for i386
S.u.S.E. SUSE LINUX Retail Solution 8.0
S.u.S.E. SuSE Linux Openexchange Server 4.0
S.u.S.E. SuSE Linux Open-Xchange 4.1
S.u.S.E. SUSE Linux Enterprise Server RT Solution 10 0
S.u.S.E. openSUSE 11.0
S.u.S.E. openSUSE 10.3
S.u.S.E. openSUSE 10.2
S.u.S.E. openSUSE 10.1
S.u.S.E. Open-Enterprise-Server 9.0
S.u.S.E. Open-Enterprise-Server 1
S.u.S.E. Open-Enterprise-Server 0
S.u.S.E. Novell Linux Desktop SDK 9.0
S.u.S.E. Novell Linux Desktop 9.0
S.u.S.E. Novell Linux Desktop 9
S.u.S.E. Linux Professional 10.0 OSS
S.u.S.E. Linux Professional 10.0
S.u.S.E. Linux Professional 10.2
S.u.S.E. Linux Professional 10.1
S.u.S.E. Linux Personal 10.0 OSS
S.u.S.E. Linux Personal 10.2
S.u.S.E. Linux Personal 10.1
S.u.S.E. Linux Enterprise Server 10.SP2 SP
S.u.S.E. Linux Enterprise Server 10.SP1
S.u.S.E. Linux Enterprise Server 10
+ Linux kernel 2.6.5
S.u.S.E. Linux Enterprise Desktop 10 SP2
S.u.S.E. Linux Enterprise Desktop 10 SP2
S.u.S.E. Linux Enterprise Desktop 10 SP1
S.u.S.E. Linux 10.1 x86-64
S.u.S.E. Linux 10.1 x86
S.u.S.E. Linux 10.1 ppc64
S.u.S.E. Linux 10.1 ppc
S.u.S.E. Linux 10.0 x86-64
S.u.S.E. Linux 10.0 x86
S.u.S.E. Linux 10.0 ppc
Red Hat Fedora 9
Red Hat Fedora 8
Pardus Linux 2008 0
Mandriva Linux Mandrake 2009.0 x86_64
Mandriva Linux Mandrake 2009.0
Mandriva Linux Mandrake 2008.1 x86_64
Mandriva Linux Mandrake 2008.1
Mandriva Linux Mandrake 2008.0 x86_64
Mandriva Linux Mandrake 2008.0
MandrakeSoft Corporate Server 4.0 x86_64
MandrakeSoft Corporate Server 3.0 x86_64
MandrakeSoft Corporate Server 3.0
MandrakeSoft Corporate Server 4.0
Kolab Kolab Groupware Server 2.2
Kolab Kolab Groupware Server 2.1
Kolab Kolab Groupware Server 2.0.4
Kolab Kolab Groupware Server 2.0.3
Kolab Kolab Groupware Server 2.0.2
Kolab Kolab Groupware Server 2.0.1
ifenslave ifenslave 0.88
Gentoo Linux
Debian Linux 4.0 sparc
Debian Linux 4.0 s/390
Debian Linux 4.0 powerpc
Debian Linux 4.0 mipsel
Debian Linux 4.0 mips
Debian Linux 4.0 m68k
Debian Linux 4.0 ia-64
Debian Linux 4.0 ia-32
Debian Linux 4.0 hppa
Debian Linux 4.0 arm
Debian Linux 4.0 amd64
Debian Linux 4.0 alpha
Debian Linux 4.0
Clam Anti-Virus ClamAV 0.93.1
Clam Anti-Virus ClamAV 0.92.1
Clam Anti-Virus ClamAV 0.91.2
Clam Anti-Virus ClamAV 0.91.1
Clam Anti-Virus ClamAV 0.90.3
Clam Anti-Virus ClamAV 0.90.2
Clam Anti-Virus ClamAV 0.90.1
Clam Anti-Virus ClamAV 0.90
- MandrakeSoft Corporate Server 4.0 x86_64
- MandrakeSoft Corporate Server 3.0 x86_64
- MandrakeSoft Corporate Server 3.0
- MandrakeSoft Corporate Server 4.0
- Mandriva Linux Mandrake 2007.1 x86_64
- Mandriva Linux Mandrake 2007.1
- Mandriva Linux Mandrake 2007.0 x86_64
- Mandriva Linux Mandrake 2007.0
Clam Anti-Virus ClamAV 0.88.5
Clam Anti-Virus ClamAV 0.88.4
Clam Anti-Virus ClamAV 0.88.3
Clam Anti-Virus ClamAV 0.88.2
Clam Anti-Virus ClamAV 0.88.1
Clam Anti-Virus ClamAV 0.87.1
Clam Anti-Virus ClamAV 0.87 -1
Clam Anti-Virus ClamAV 0.87
Clam Anti-Virus ClamAV 0.86.2
Clam Anti-Virus ClamAV 0.86 .1
Clam Anti-Virus ClamAV 0.86
Clam Anti-Virus ClamAV 0.85.1
Clam Anti-Virus ClamAV 0.85
Clam Anti-Virus ClamAV 0.84 rc2
Clam Anti-Virus ClamAV 0.84 rc1
Clam Anti-Virus ClamAV 0.84
Clam Anti-Virus ClamAV 0.83
Clam Anti-Virus ClamAV 0.82
Clam Anti-Virus ClamAV 0.81
+ Gentoo Linux
Clam Anti-Virus ClamAV 0.80 rc4
Clam Anti-Virus ClamAV 0.80 rc3
Clam Anti-Virus ClamAV 0.80 rc2
Clam Anti-Virus ClamAV 0.80 rc1
Clam Anti-Virus ClamAV 0.80
Clam Anti-Virus ClamAV 0.75.1
Clam Anti-Virus ClamAV 0.70
Clam Anti-Virus ClamAV 0.68 -1
Clam Anti-Virus ClamAV 0.68
Clam Anti-Virus ClamAV 0.67
+ Gentoo Linux 1.4 _rc3
+ Gentoo Linux 1.4 _rc2
+ Gentoo Linux 1.4 _rc1
+ Gentoo Linux 1.4
Clam Anti-Virus ClamAV 0.65
Clam Anti-Virus ClamAV 0.60
Clam Anti-Virus ClamAV 0.54
Clam Anti-Virus ClamAV 0.53
Clam Anti-Virus ClamAV 0.52
Clam Anti-Virus ClamAV 0.51
Clam Anti-Virus ClamAV 0.94
Clam Anti-Virus ClamAV 0.93
Clam Anti-Virus ClamAV 0.92
Clam Anti-Virus ClamAV 0.91
Clam Anti-Virus ClamAV 0.88.6
Apple Mac OS X Server 10.5.6
Apple Mac OS X Server 10.4.11
Apple Mac OS X Server 10.4.11
Not Vulnerable: Stonesoft StoneGate High Availability Firewall and VPN 4.3.1
Clam Anti-Virus ClamAV 0.94.1

Discussion

ClamAV 'get_unicode_name()' Off-By-One Heap Based Buffer Overflow Vulnerability

ClamAV is prone to an off-by-one heap-based buffer-overflow vulnerability because the application fails to perform adequate boundary checks on user-supplied data.

Successfully exploiting this issue will allow attackers to execute arbitrary code within the context of the affected application. Failed exploit attempts will result in a denial-of-service condition.

Versions prior to ClamAV 0.94.1 are vulnerable.

Exploit / POC

ClamAV 'get_unicode_name()' Off-By-One Heap Based Buffer Overflow Vulnerability

Currently we are not aware of any working exploits. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected].

Solution / Fix

ClamAV 'get_unicode_name()' Off-By-One Heap Based Buffer Overflow Vulnerability

Solution:
The vendor has released fixes. Please see the references for more information.


Ubuntu Ubuntu Linux 8.10 powerpc

Mandriva Linux Mandrake 2008.0

Debian Linux 4.0 amd64

Debian Linux 4.0 ia-32

Ubuntu Ubuntu Linux 8.10 sparc

Mandriva Linux Mandrake 2009.0 x86_64

Debian Linux 4.0 mips

Mandriva Linux Mandrake 2008.1 x86_64

Debian Linux 4.0 arm

Mandriva Linux Mandrake 2008.1

Debian Linux 4.0 powerpc

Ubuntu Ubuntu Linux 8.10 i386

Debian Linux 4.0 m68k

Debian Linux 4.0 sparc

Mandriva Linux Mandrake 2009.0

Clam Anti-Virus ClamAV 0.91

Clam Anti-Virus ClamAV 0.88.6

Mandriva Linux Mandrake 2008.0 x86_64

Clam Anti-Virus ClamAV 0.53

Clam Anti-Virus ClamAV 0.60

Clam Anti-Virus ClamAV 0.65

Clam Anti-Virus ClamAV 0.67

Clam Anti-Virus ClamAV 0.68 -1

Clam Anti-Virus ClamAV 0.70

Clam Anti-Virus ClamAV 0.80

Clam Anti-Virus ClamAV 0.80 rc1

Clam Anti-Virus ClamAV 0.80 rc2

Clam Anti-Virus ClamAV 0.80 rc4

Clam Anti-Virus ClamAV 0.81

Clam Anti-Virus ClamAV 0.82

Clam Anti-Virus ClamAV 0.84 rc1

Clam Anti-Virus ClamAV 0.84

Clam Anti-Virus ClamAV 0.85

Clam Anti-Virus ClamAV 0.85.1

Clam Anti-Virus ClamAV 0.86 .1

Clam Anti-Virus ClamAV 0.86.2

Clam Anti-Virus ClamAV 0.87

Clam Anti-Virus ClamAV 0.87 -1

Clam Anti-Virus ClamAV 0.87.1

ifenslave ifenslave 0.88

Clam Anti-Virus ClamAV 0.88.2

Clam Anti-Virus ClamAV 0.88.3

Clam Anti-Virus ClamAV 0.88.4

Clam Anti-Virus ClamAV 0.88.5

Clam Anti-Virus ClamAV 0.90

Clam Anti-Virus ClamAV 0.91.1

Clam Anti-Virus ClamAV 0.92.1

Clam Anti-Virus ClamAV 0.93.1

Apple Mac OS X Server 10.4.11

MandrakeSoft Corporate Server 3.0

MandrakeSoft Corporate Server 4.0 x86_64

References

ClamAV 'get_unicode_name()' Off-By-One Heap Based Buffer Overflow Vulnerability

References:

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