zlib inflate and inflateback denial of service

zlib-inflate-inflateback-dos (17119) The risk level is classified as LowLow Risk

Description:

zlib is vulnerable to a denial of service attack, caused by improper handling of errors in the inflate and inflateback functions. A remote attacker could use this vulnerability to cause a denial of service.

Platforms Affected:

  • Conectiva, Linux 10
  • Gentoo, Linux
  • GNU, zlib 1.2.1
  • GNU, zlib 1.2.1.3
  • GNU, zlib 1.2.2
  • MandrakeSoft, Mandrake Linux 10.0 AMD64
  • MandrakeSoft, Mandrake Linux 10.0
  • OpenPKG, OpenPKG 2.0
  • OpenPKG, OpenPKG 2.1
  • OpenPKG, OpenPKG 2.2
  • OpenPKG, OpenPKG 2.3
  • OpenPKG, OpenPKG CURRENT
  • SCO, SCO UnixWare 7.1.3up
  • SCO, SCO UnixWare 7.1.4
  • SuSE, Linux Enterprise Server 9
  • SuSE, SuSE Linux 9.1
  • SuSE, SuSE SLES 9
  • Trustix, Enterprise Server 2
  • Trustix, Secure Linux 1.5
  • Trustix, Secure Linux 2.0
  • Trustix, Secure Linux 2.1

Remedy:

Upgrade to the latest version of zlib (1.2.2 or later), available fom the zlib Web site. See References.

For OpenPKG:
Refer to OpenPKG Security Advisory OpenPKG-SA-2005.007 for patch, upgrade, or suggested workaround information. See References.

For Trustix Secure Linux:
Upgrade to the latest zlib package, as listed below. Refer to Trustix Secure Linux Security Advisory #2004-0043 for more information. See References.

Trustix Secure Linux 2.0: 1.7.1-15tr.i586 or later
Trustix Secure Linux 2.1: 2.2.1-5tr.i586 or later
Trustix Secure Linux 1.5: 2.2.11-0.1tr.i586 or later
Trustix Operating System - Enterprise Server 2: 2.2.1-5tr.i586 or later

For Gentoo Linux:
Upgrade to the latest version of zlib (1.2.1-r3 or later), as listed in GLSA 200408-26. See References.

For SuSE Linux:
Upgrade to the latest zlib package, as listed below. Refer to SuSE Security Announcement SuSE-SUSE-SA:2004:029 for more information. See References.

SuSE Linux 9.1: 1.2.1-70.6 or later

For Mandrake Linux:
Upgrade to the latest zlib package, as listed below. Refer to MandrakeSoft Security Advisory MDKSA-2004:090 : zlib for more information. See References.

Mandrake Linux 10.0: 1.2.1-2.1.100mdk or later

For Conectiva Linux:
Upgrade to the latest zlib package, as listed below. Refer to Conectiva Linux Security Announcement CLSA-2004:865 for more information. See References.

Conectiva Linux 10: 1.2.1-47972U10_1cl or later

For Slackware Linux:
Upgrade to the latest zlib package, as listed below. Refer to Slackware Security Announcement SSA:2004-278-02 for more information. See References.

Slackware Linux 10: zlib-1.2.2l or later
Slackware Linux -current: zlib-1.2.2l or later

For SCO UnixWare 7.1.4, and UnixWare 7.1.3:
Upgrade to the appropriate fixed binaries, as listed in SCO Security Advisory SCOSA-2004.17. See References.

For Conectiva Linux:
Upgrade to the latest zlib package, as listed below. Refer to Conectiva Linux Security Announcement CLSA-2004:878 for more information. See References.

Conectiva Linux 10: 1.2.1-47972U10_2cl or later

For other distributions:
Contact your vendor for upgrade or patch information.

Consequences:

Denial of Service

References:

Reported:

Aug 25, 2004

The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

For corrections or additions please email xforce@iss.net

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