GnuPG Parse_Comment Remote Buffer Overflow Vulnerability

BID:19110

CVE-2006-3746 |

Info

GnuPG Parse_Comment Remote Buffer Overflow Vulnerability

Bugtraq ID: 19110
Class: Boundary Condition Error
CVE: CVE-2006-3746
Remote: Yes
Local: No
Published: Jul 22 2006 12:00AM
Updated: Mar 19 2015 08:50AM
Credit: Evgeny Legerov discovered this issue.
Vulnerable: Ubuntu Ubuntu Linux 5.10 sparc
Ubuntu Ubuntu Linux 5.10 powerpc
Ubuntu Ubuntu Linux 5.10 i386
Ubuntu Ubuntu Linux 5.10 amd64
Ubuntu Ubuntu Linux 5.0 4 powerpc
Ubuntu Ubuntu Linux 5.0 4 i386
Ubuntu Ubuntu Linux 5.0 4 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
Trustix Secure Linux 3.0
Trustix Secure Linux 2.2
Trustix Secure Enterprise Linux 2.0
SuSE SUSE Linux Enterprise Server 9
SuSE SUSE Linux Enterprise Server 8
+ Linux kernel 2.4.21
+ Linux kernel 2.4.19
Slackware Linux 10.2
Slackware Linux 10.1
Slackware Linux 10.0
Slackware Linux 9.1
Slackware Linux 9.0
Slackware Linux -current
SGI ProPack 3.0 SP6
S.u.S.E. UnitedLinux 1.0
S.u.S.E. SuSE Linux Standard Server 8.0
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. Open-Enterprise-Server 9.0
S.u.S.E. Novell Linux Desktop 9.0
S.u.S.E. Linux Professional 10.0 OSS
S.u.S.E. Linux Professional 9.3 x86_64
S.u.S.E. Linux Professional 9.3
S.u.S.E. Linux Professional 9.2 x86_64
S.u.S.E. Linux Professional 9.2
S.u.S.E. Linux Professional 9.1 x86_64
S.u.S.E. Linux Professional 9.1
S.u.S.E. Linux Professional 9.0 x86_64
S.u.S.E. Linux Professional 9.0
S.u.S.E. Linux Professional 8.2
S.u.S.E. Linux Professional 10.1
S.u.S.E. Linux Personal 10.0 OSS
S.u.S.E. Linux Personal 9.3 x86_64
S.u.S.E. Linux Personal 9.3
S.u.S.E. Linux Personal 9.2 x86_64
S.u.S.E. Linux Personal 9.2
S.u.S.E. Linux Personal 9.1 x86_64
S.u.S.E. Linux Personal 9.1
S.u.S.E. Linux Personal 9.0 x86_64
S.u.S.E. Linux Personal 9.0
S.u.S.E. Linux Personal 8.2
S.u.S.E. Linux Personal 10.1
S.u.S.E. Linux Desktop 1.0
rPath rPath Linux 1
RedHat Enterprise Linux WS 4
RedHat Enterprise Linux WS 3
RedHat Enterprise Linux WS 2.1 IA64
RedHat Enterprise Linux WS 2.1
RedHat Enterprise Linux ES 4
RedHat Enterprise Linux ES 3
RedHat Enterprise Linux ES 2.1 IA64
RedHat Enterprise Linux ES 2.1
RedHat Desktop 4.0
RedHat Desktop 3.0
RedHat Advanced Workstation for the Itanium Processor 2.1 IA64
RedHat Advanced Workstation for the Itanium Processor 2.1
Red Hat Fedora Core6
Red Hat Fedora Core5
Red Hat Enterprise Linux AS 4
Red Hat Enterprise Linux AS 3
Red Hat Enterprise Linux AS 2.1 IA64
Red Hat Enterprise Linux AS 2.1
Mandriva Linux Mandrake 2006.0 x86_64
Mandriva Linux Mandrake 2006.0
MandrakeSoft Multi Network Firewall 2.0
MandrakeSoft Corporate Server 3.0 x86_64
MandrakeSoft Corporate Server 3.0
GNU GNU Privacy Guard 1.9.10
GNU GNU Privacy Guard 1.4.4
Gentoo Linux
Debian Linux 3.1 sparc
Debian Linux 3.1 s/390
Debian Linux 3.1 ppc
Debian Linux 3.1 mipsel
Debian Linux 3.1 mips
Debian Linux 3.1 m68k
Debian Linux 3.1 ia-64
Debian Linux 3.1 ia-32
Debian Linux 3.1 hppa
Debian Linux 3.1 arm
Debian Linux 3.1 amd64
Debian Linux 3.1 alpha
Debian Linux 3.1
Avaya Interactive Response 1.3
Avaya Interactive Response 1.2.1
Avaya Interactive Response
Avaya Integrated Management 2.1
Avaya Integrated Management
Avaya CVLAN
Not Vulnerable: GNU GNU Privacy Guard 1.4.5

Discussion

GnuPG Parse_Comment Remote Buffer Overflow Vulnerability

GnuPG is prone to a remote buffer-overflow vulnerability because it fails to properly bounds-check user-supplied input before copying it to an insufficiently sized memory buffer.

This issue may allow remote attackers to execute arbitrary machine code in the context of the affected application, but this has not been confirmed.

GnuPG version 1.4.4 is vulnerable to this issue; previous versions may also be affected.

Exploit / POC

GnuPG Parse_Comment Remote Buffer Overflow Vulnerability

The following Perl command demonstrates this issue by crashing the affected application:

perl -e 'print "\xfd\xff\xff\xff\xff\xfe"'| /var/gnupg/bin/gpg --no-armor

Currently we are not aware of any 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

GnuPG Parse_Comment Remote Buffer Overflow Vulnerability

Solution:
rPath Linux has released a fix for this vulnerability. Please see the references for vendor advisories and more information.


GNU GNU Privacy Guard 1.4.4

GNU GNU Privacy Guard 1.9.10

References

GnuPG Parse_Comment Remote Buffer Overflow Vulnerability

References:

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