(Slackware Issues Fix) Zlib Error Handling Bug in inflate() and inflateBack() Lets Remote Users Deny Service
|
|
SecurityTracker Alert ID: 1011536 |
|
SecurityTracker URL: http://securitytracker.com/id/1011536
|
|
CVE Reference:
CAN-2004-0797
(Links to External Site)
|
Date: Oct 4 2004
|
Impact:
Denial of service via local system, Denial of service via network
|
Fix Available: Yes Vendor Confirmed: Yes
|
Version(s): 1.2 - 1.2.1
|
Description:
A vulnerability was reported in zlib. A remote user can cause denial of service conditions.
Johan Thelmen reported that a specially crafted file can cause a segmentation fault in zlib.
It is reported that the inflate() and inflateBack() functions do not properly handle errors.
|
Impact:
A user can create a file that when processed by zlib, will cause a segmentation fault. The specific impact depends on the application using zlib.
|
Solution:
Slackware has released a fix.
Updated package for Slackware 10.0:
ftp://ftp.slackware.com/pub/slackware/slackware-10.0/patches/packages/zlib-1.2.2-i486-1.tgz
Updated package for Slackware -current:
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/l/zlib-1.2.2-i486-1.tgz
The MD5 signatures are:
Slackware 10.0 package:
dfa40fb5afb988488648fc4b7ef992f0 zlib-1.2.2-i486-1.tgz
Slackware -current package:
011d7257bb879a8159b65b0b06b58bd0 zlib-1.2.2-i486-1.tgz
|
Vendor URL: www.gzip.org/zlib/ (Links to External Site)
|
Cause:
Exception handling error
|
Underlying OS:
Linux (Slackware)
|
|
Message History:
This archive entry is a follow-up to the message listed below.
|
Source Message Contents
|
Date: Mon, 4 Oct 2004 12:52:54 -0700 (PDT)
Subject: [slackware-security] zlib DoS (SSA:2004-278-02)
|
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
[slackware-security] zlib DoS (SSA:2004-278-02)
New zlib packages are available for Slackware 10.0 and -current to
fix a possible denial of service security issue.
More details about this issue may be found in the Common
Vulnerabilities and Exposures (CVE) database:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-797
Here are the details from the Slackware 10.0 ChangeLog:
+--------------------------+
patches/packages/zlib-1.2.2-i486-1.tgz: Upgraded to zlib-1.2.2.
This fixes a possible DoS in earlier versions of zlib-1.2.x.
(* Security fix *)
+--------------------------+
Where to find the new packages:
+-----------------------------+
Updated package for Slackware 10.0:
ftp://ftp.slackware.com/pub/slackware/slackware-10.0/patches/packages/zlib-1.2.2-i486-1.tgz
Updated package for Slackware -current:
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/l/zlib-1.2.2-i486-1.tgz
MD5 signatures:
+-------------+
Slackware 10.0 package:
dfa40fb5afb988488648fc4b7ef992f0 zlib-1.2.2-i486-1.tgz
Slackware -current package:
011d7257bb879a8159b65b0b06b58bd0 zlib-1.2.2-i486-1.tgz
Installation instructions:
+------------------------+
Upgrade the packages as root:
# upgradepkg zlib-1.2.2-i486-1.tgz
+-----+
Slackware Linux Security Team
http://slackware.com/gpg-key
security@slackware.com
+------------------------------------------------------------------------+
| To leave the slackware-security mailing list: |
+------------------------------------------------------------------------+
| Send an email to majordomo@slackware.com with this text in the body of |
| the email message: |
| |
| unsubscribe slackware-security |
| |
| You will get a confirmation message back containing instructions to |
| complete the process. Please do not reply to this email address. |
+------------------------------------------------------------------------+
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.6 (GNU/Linux)
iD8DBQFBYaRVakRjwEAQIjMRApFLAJwPA+k/RlMPxNZ258r4L91KTscDMQCfZu6l
w6U7p3sbXK6MMD03a3hgkxc=
=MEVw
-----END PGP SIGNATURE-----
|
|
