dcsimg
Linux Today: Linux News On Internet Time.




More on LinuxToday


Debian Security Advisory: New version of curl fixes buffer overflow

Oct 13, 2000, 20:41 (0 Talkback[s])

Date: Fri, 13 Oct 2000 18:56:28 +0200
From: Wichert Akkerman
To: debian-security-announce@lists.debian.org
Subject: [SECURITY] New version of curl fixes buffer overflow


Debian Security Advisory                                        security@debian.org
http://www.debian.org/security/                                   Wichert Akkerman 
October 13, 2000


Package        : curl and curl-ssl
Problem type   : remote exploit
Debian-specific: no
The version of curl as distributed with Debian GNU/Linux 2.2 had a bug in the error logging code: when it created an error message it failed to check the size of the buffer allocated for storing the message. This could be exploited by the remote machine by returning an invalid response to a request from curl which overflows the error buffer and trick curl into executing arbitrary code.

Debian ships with two versions of curl: the normal curl package, and the crypto-enabled curl-ssl package. This bug has been fixed in curl version 6.0-1.1 and curl-ssl version 6.0-1.2 .

We recommend you upgrade your curl or curl-ssl package immediately.

wget url
        will fetch the file for you
dpkg -i file.deb
        will install the referenced file.
Debian GNU/Linux 2.1 alias slink

Slink did not contain curl or curl-ssl.

Debian GNU/Linux 2.2 alias potato


Potato was released for alpha, arm, i386, m68k, powerpc and sparc. At this moment packages for m68k are not yet available; they will later be announce on
http://security.debian.org/ .

Fixed curl-ssl packages:

Source archives:
http://security.debian.org/dists/stable/updates/main/source/curl-ssl_6.0-1.2.diff.gz
MD5 checksum: bdfd882127d9f246402be6f9cc8d02d3
http://security.debian.org/dists/stable/updates/main/source/curl-ssl_6.0-1.2.dsc
MD5 checksum: 965a98adeb70df08f5219565c5d2a0cb
http://security.debian.org/dists/stable/updates/main/source/curl-ssl_6.0.orig.tar.gz
MD5 checksum: dffbc34bc3c19d8e8c6a11495aa744fe

Alpha architecture:
http://security.debian.org/dists/stable/updates/main/binary-alpha/curl-ssl_6.0-1.2_alpha.deb
MD5 checksum: 2c8992652534aa6d7e2fc95473a469a7

ARM architecture:
http://security.debian.org/dists/stable/updates/main/binary-arm/curl-ssl_6.0-1.2_arm.deb
MD5 checksum: 168a025e9374b2f96eeae3736bff094f

Intel ia32 architecture:
http://security.debian.org/dists/stable/updates/main/binary-i386/curl-ssl_6.0-1.2_i386.deb
MD5 checksum: 7ad6efee7ec787a450911fbc40111468

PowerPC architecture:
http://security.debian.org/dists/stable/updates/main/binary-powerpc/curl-ssl_6.0-1.2_powerpc.deb
MD5 checksum: 1d62c52cbb711cea17c375978de09e7f

Sun Sparc architecture:
http://security.debian.org/dists/stable/updates/main/binary-sparc/curl-ssl_6.0-1.2_sparc.deb
MD5 checksum: c631f9b4f4789d6ba779d8ebc5ec4867

Fixed curl packages:

Source archives:
http://security.debian.org/dists/stable/updates/main/source/curl_6.0-1.1.diff.gz
MD5 checksum: a95dde95e6a072bd44a8e59b9f3d0e49
http://security.debian.org/dists/stable/updates/main/source/curl_6.0-1.1.dsc
MD5 checksum: d35d95a7e1b8e1d19692d27edecd2155
http://security.debian.org/dists/stable/updates/main/source/curl_6.0.orig.tar.gz
MD5 checksum: dffbc34bc3c19d8e8c6a11495aa744fe

Alpha architecture:
http://security.debian.org/dists/stable/updates/main/binary-alpha/curl_6.0-1.1_alpha.deb
MD5 checksum: dbbe286ceabcd21e398f5bf9566182d0

ARM architecture:
http://security.debian.org/dists/stable/updates/main/binary-arm/curl_6.0-1.1_arm.deb
MD5 checksum: 9fb58f2b273e68b3ba00ebcf53737fa4

Intel ia32 architecture:
http://security.debian.org/dists/stable/updates/main/binary-i386/curl_6.0-1.1_i386.deb
MD5 checksum: 36bd0030616c54c60fb0ba2df5c31530

PowerPC architecture:
http://security.debian.org/dists/stable/updates/main/binary-powerpc/curl_6.0-1.1_powerpc.deb
MD5 checksum: d0cb857833f793276bd467773c3e58cf

Sun Sparc architecture:
http://security.debian.org/dists/stable/updates/main/binary-sparc/curl_6.0-1.1_sparc.deb
MD5 checksum: 99f5c19a778e67eec371b316202274c0

These files will be moved into
ftp://ftp.debian.org/debian/dists/stable/*/binary-$arch/ soon.

For not yet released architectures please refer to the appropriate directory
ftp://ftp.debian.org/debian/dists/sid/binary-$arch/ .


apt-get: deb http://security.debian.org/ stable/updates main
dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
Mailing list: debian-security-announce@lists.debian.org