发布时间 :2005-11-03 19:02:00
修订时间 :2011-03-07 21:25:22

[原文]libungif library before 4.1.0 allows attackers to cause a denial of service via a crafted GIF file that triggers a null dereference.


        libungif 4.1.0之前的程序库可让攻击者通过特制的GIF文件触发一个空的取消引用,从而导致拒绝服务攻击。

- CVSS (基础分值)

CVSS分值: 2.6 [轻微(LOW)]
机密性影响: NONE [对系统的机密性无影响]
完整性影响: NONE [不会对系统完整性产生影响]
可用性影响: PARTIAL [可能会导致性能下降或中断资源访问]
攻击复杂度: HIGH [漏洞利用存在特定的访问条件]
攻击向量: [--]
身份认证: NONE [漏洞利用无需身份认证]

- CPE (受影响的平台与产品)


- OVAL (用于检测的技术细节)

oval:org.mitre.oval:def:10994libungif library before 4.1.0 allows attackers to cause a denial of service via a crafted GIF file that triggers a null dereference.
oval:org.mitre.oval:def:21867ELSA-2009:0444: giflib security update (Important)

- 官方数据库链接
(官方数据源) MITRE
(官方数据源) NVD
(官方数据源) CNNVD

- 其它链接及资源
(UNKNOWN)  VUPEN  ADV-2005-2295
(UNKNOWN)  BID  15304
(UNKNOWN)  FEDORA  FLSA-2006:174479

- 漏洞信息

低危 边界条件错误
2005-11-03 00:00:00 2009-05-27 00:00:00
        libungif 4.1.0之前的程序库可让攻击者通过特制的GIF文件触发一个空的取消引用,从而导致拒绝服务攻击。

- 公告与补丁


- 漏洞信息

libungif/giflib GIF File Handling NULL Pointer Dereference DoS
Context Dependent Denial of Service
Loss of Availability Upgrade
Exploit Unknown Vendor Verified

- 漏洞描述

libungif and giflib contain a NULL pointer dereference flaw triggered by the handling of GIF files that may allow a remote denial of service. With a specially crafted GIF file, a context-dependent attacker can cause the program to crash.

- 时间线

2005-11-04 Unknow
Unknow 2005-10-19

- 解决方案

It has been reported that this issue has been fixed. Upgrade to version 4.1.4, or higher, to address this vulnerability.

- 相关参考

- 漏洞作者

- 漏洞信息

Libungif Colormap Handling Memory Corruption Vulnerability
Boundary Condition Error 15299
Yes No
2005-11-03 12:00:00 2009-06-22 05:50:00
Daniel Eisenbud and Chris Evans are credited with the discovery of this vulnerability.

- 受影响的程序版本

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 4.1 ppc
Ubuntu Ubuntu Linux 4.1 ia64
Ubuntu Ubuntu Linux 4.1 ia32
SuSE SUSE Linux Enterprise Server 8
+ Linux kernel 2.4.21
+ Linux kernel 2.4.19
SGI ProPack 3.0 SP6
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 10.0
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 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 Enterprise Server 9
S.u.S.E. Linux Desktop 1.0
RedHat Linux 9.0 i386
RedHat Linux 7.3 i386
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 Enterprise Linux Desktop Workstation 5 client
RedHat Enterprise Linux 5 server
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 Core2
Red Hat Fedora Core1
Red Hat Fedora 9
Red Hat Fedora 10
Red Hat Enterprise Linux Desktop 5 client
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
Mandriva Linux Mandrake 10.2 x86_64
Mandriva Linux Mandrake 10.2
Mandriva Linux Mandrake 10.1 x86_64
Mandriva Linux Mandrake 10.1
MandrakeSoft Corporate Server 3.0 x86_64
MandrakeSoft Corporate Server 3.0
MandrakeSoft Corporate Server 2.1 x86_64
MandrakeSoft Corporate Server 2.1
libungif libungif 4.1.3
+ Red Hat Fedora Core4
+ Red Hat Fedora Core3
libungif libungif 4.1
libungif giflib 4.1.3
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
Debian Linux 3.0 sparc
Debian Linux 3.0 s/390
Debian Linux 3.0 ppc
Debian Linux 3.0 mipsel
Debian Linux 3.0 mips
Debian Linux 3.0 m68k
Debian Linux 3.0 ia-64
Debian Linux 3.0 ia-32
Debian Linux 3.0 hppa
Debian Linux 3.0 arm
Debian Linux 3.0 alpha
Debian Linux 3.0
Conectiva Linux 10.0
libungif libungif 4.1.4
libungif giflib 4.1.4

- 不受影响的程序版本

libungif libungif 4.1.4
libungif giflib 4.1.4

- 漏洞讨论

The libungif library is prone to a memory-corruption vulnerability.

Reports indicate that due to the library's improper handling of colormaps in GIF files, an attacker can trigger out-of-bounds writes and corrupt memory.

This may lead to a denial-of-service condition.

This issue affects libungif 4.1.3 and earlier.

- 漏洞利用

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:

- 解决方案

Vendor updates are available. Please see the references for more information.

libungif libungif 4.1

libungif libungif 4.1.3

libungif giflib 4.1.3

- 相关参考