OpenSSL DTLS Heap Buffer Overflow Vulnerability

BID:26055

Info

OpenSSL DTLS Heap Buffer Overflow Vulnerability

Bugtraq ID: 26055
Class: Boundary Condition Error
CVE: CVE-2007-4995
Remote: Yes
Local: No
Published: Oct 12 2007 12:00AM
Updated: Jun 26 2008 03:01PM
Credit: Andy Polyakov is credited with the discovery of this vulnerability.
Vulnerable: Ubuntu Ubuntu Linux 7.10 sparc
Ubuntu Ubuntu Linux 7.10 powerpc
Ubuntu Ubuntu Linux 7.10 i386
Ubuntu Ubuntu Linux 7.10 amd64
Ubuntu Ubuntu Linux 7.04 sparc
Ubuntu Ubuntu Linux 7.04 powerpc
Ubuntu Ubuntu Linux 7.04 i386
Ubuntu Ubuntu Linux 7.04 amd64
Ubuntu Ubuntu Linux 6.10 sparc
Ubuntu Ubuntu Linux 6.10 powerpc
Ubuntu Ubuntu Linux 6.10 i386
Ubuntu Ubuntu Linux 6.10 amd64
Ubuntu Ubuntu Linux 6.06 LTS sparc
Ubuntu Ubuntu Linux 6.06 LTS powerpc
Ubuntu Ubuntu Linux 6.06 LTS i386
Ubuntu Ubuntu Linux 6.06 LTS amd64
Turbolinux Turbolinux Server 10.0
Turbolinux Turbolinux Server 10.0.0 x64
TurboLinux Personal
TurboLinux Multimedia
Turbolinux FUJI 0
Turbolinux Appliance Server Workgroup Edition 1.0
Turbolinux Appliance Server Hosting Edition 1.0
Turbolinux Appliance Server 1.0 Workgroup Edition
Turbolinux Appliance Server 1.0 Hosting Edition
Turbolinux Appliance Server 2.0
TransSoft Broker FTP Server 8.0
SuSE SUSE Linux Enterprise Server 9
SuSE SUSE Linux Enterprise Server 8
SuSE SUSE Linux Enterprise Server 10
SuSE Linux 10.1
SuSE Linux 10.0
S.u.S.E. openSUSE 10.3
Redhat Fedora Core7
Redhat Enterprise Linux Desktop Workstation 5 client
Redhat Enterprise Linux Desktop 5 client
Redhat Enterprise Linux 5 Server
OpenSSL Project OpenSSL 0.9.8 e
OpenSSL Project OpenSSL 0.9.8 d
OpenSSL Project OpenSSL 0.9.8 c
OpenSSL Project OpenSSL 0.9.8 b
OpenSSL Project OpenSSL 0.9.8 a
OpenSSL Project OpenSSL 0.9.8
+ Gentoo Linux
Nortel Networks Self-Service Peri Application 0
Nortel Networks Self-Service MPS 500 0
Nortel Networks Self-Service MPS 1000 0
Nortel Networks Self-Service Media Processing Server 0
Mandriva Linux Mandrake 2008.0 x86_64
Mandriva Linux Mandrake 2008.0
Mandriva Linux Mandrake 2007.1 x86_64
Mandriva Linux Mandrake 2007.1
Mandriva Linux Mandrake 2007.0 x86_64
Mandriva Linux Mandrake 2007.0
HP HP-UX B.11.23
HP HP-UX B.11.11
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
Not Vulnerable: OpenSSL Project OpenSSL 0.9.8 f

Discussion

OpenSSL DTLS Heap Buffer Overflow Vulnerability

OpenSSL is prone to a heap buffer-overflow vulnerability because the library fails to perform adequate boundary checks on user-supplied data.

Successfully exploiting this issue may allow attackers to execute arbitrary machine code in the context of applications that use the affected library, but this has not been confirmed. Failed exploit attempts may crash applications, denying service to legitimate users.

Exploit / POC

OpenSSL DTLS Heap Buffer Overflow Vulnerability

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

Solution / Fix

OpenSSL DTLS Heap Buffer Overflow Vulnerability

Solution:
The vendor released OpenSSL 0.9.8 f to address this issue. Please see the references for more information.


OpenSSL Project OpenSSL 0.9.8 a

OpenSSL Project OpenSSL 0.9.8 c

OpenSSL Project OpenSSL 0.9.8 b

OpenSSL Project OpenSSL 0.9.8

OpenSSL Project OpenSSL 0.9.8 e

OpenSSL Project OpenSSL 0.9.8 d

References

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