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Home » Security Advisories» Debian » New crawl packages fix potential local games exploit

New crawl packages fix potential local games exploit

Steve Kemp from the GNU/Linux audit project discovered a problem in crawl, another console based dungeon exploration game, in the vein of nethack and rogue. The program uses several environment variables as inputs but doesn't apply a size check before copying one of them into a fixed size buffer.

  • Vendor: Debian
  • Vendor ID: DSA 432-1
  • Date: February 03, 2004


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Debian Security Advisory DSA 432-1 [email protected]
http://www.debian.org/security/ Martin Schulze
February 3rd, 2004 http://www.debian.org/security/faq
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Package : crawl
Vulnerability : buffer overflow
Problem-Type : local
Debian-specific: no
CVE ID : CAN-2004-0103

Steve Kemp from the GNU/Linux audit project discovered a problem in
crawl, another console based dungeon exploration game, in the vein of
nethack and rogue. The program uses several environment variables as
inputs but doesn't apply a size check before copying one of them into
a fixed size buffer.

For the stable distribution (woody) this problem has been fixed in
version 4.0.0beta23-2woody1.

For the unstable distribution (sid) this problem has been fixed in
version 4.0.0beta26-4.

We recommend that you upgrade your crawl package.


Upgrade Instructions
- --------------------

wget url
will fetch the file for you
dpkg -i file.deb
will install the referenced file.

If you are using the apt-get package manager, use the line for
sources.list as given below:

apt-get update
will update the internal database
apt-get upgrade
will install corrected packages

You may use an automated update by adding the resources from the
footer to the proper configuration.


Debian GNU/Linux 3.0 alias woody
- --------------------------------

Source archives:

http://security.debian.org/pool/updates/main/c/crawl/crawl_4.0.0beta23-2woody1.dsc
Size/MD5 checksum: 615 31b653a8f4676721dce6fd4cd0be466a
http://security.debian.org/pool/updates/main/c/crawl/crawl_4.0.0beta23-2woody1.diff.gz
Size/MD5 checksum: 6917 b6265bdb9920f235974e956aee8ff3d8
http://security.debian.org/pool/updates/main/c/crawl/crawl_4.0.0beta23.orig.tar.gz
Size/MD5 checksum: 1047863 6b988caff871f0df1c8f3cc907f2fce6

Alpha architecture:

http://security.debian.org/pool/updates/main/c/crawl/crawl_4.0.0beta23-2woody1_alpha.deb
Size/MD5 checksum: 846352 cd6c9b2e3f956ffb90044d3f612a0541

ARM architecture:

http://security.debian.org/pool/updates/main/c/crawl/crawl_4.0.0beta23-2woody1_arm.deb
Size/MD5 checksum: 612148 1d40c12a7687b8c2fbac1ea96df77904

Intel IA-32 architecture:

http://security.debian.org/pool/updates/main/c/crawl/crawl_4.0.0beta23-2woody1_i386.deb
Size/MD5 checksum: 597308 23caee0901a3bb82a339865317bacec4

Intel IA-64 architecture:

http://security.debian.org/pool/updates/main/c/crawl/crawl_4.0.0beta23-2woody1_ia64.deb
Size/MD5 checksum: 872990 650870a8100d6940786e51c8637bf620

HP Precision architecture:

http://security.debian.org/pool/updates/main/c/crawl/crawl_4.0.0beta23-2woody1_hppa.deb
Size/MD5 checksum: 710630 3901b6834ce7bf7a207a90a2b7dc1d06

Motorola 680x0 architecture:

http://security.debian.org/pool/updates/main/c/crawl/crawl_4.0.0beta23-2woody1_m68k.deb
Size/MD5 checksum: 582394 82175ccafa67ddf21c2ecbf76cc0bffd

Big endian MIPS architecture:

http://security.debian.org/pool/updates/main/c/crawl/crawl_4.0.0beta23-2woody1_mips.deb
Size/MD5 checksum: 682518 6a0e340b338b97ee9a560e62b555d400

Little endian MIPS architecture:

http://security.debian.org/pool/updates/main/c/crawl/crawl_4.0.0beta23-2woody1_mipsel.deb
Size/MD5 checksum: 680054 c943ac5a2b8f40e937911bcdc41b7f7b

PowerPC architecture:

http://security.debian.org/pool/updates/main/c/crawl/crawl_4.0.0beta23-2woody1_powerpc.deb
Size/MD5 checksum: 627012 6f582d4800a2f8a43aaed89bd9ee8d55

IBM S/390 architecture:

http://security.debian.org/pool/updates/main/c/crawl/crawl_4.0.0beta23-2woody1_s390.deb
Size/MD5 checksum: 595210 fc1e552be3a5e6f4a981feee849a672f

Sun Sparc architecture:

http://security.debian.org/pool/updates/main/c/crawl/crawl_4.0.0beta23-2woody1_sparc.deb
Size/MD5 checksum: 618752 db57f6fdc7c73721739027dd46fc1515


These files will probably be moved into the stable distribution on
its next revision.

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For apt-get: deb http://security.debian.org/ stable/updates main
For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
Mailing list: [email protected]
Package info: `apt-cache show ' and http://packages.debian.org/

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