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Debian: New libc6 packages fix insecure temporary files Print E-mail
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Posted by Joe Shakespeare   
Debian Several insecure uses of temporary files have been discovered in support scripts in the libc6 package which provices the c library for a GNU/Linux system. Trustix developers found that the catchsegv script uses temporary files insecurely. Openwall developers discovered insecure temporary files in the glibcbug script. These scripts are vulnerable to a symlink attack.

- --------------------------------------------------------------------------
Debian Security Advisory DSA 636-1                                        Martin Schulze
January 12th, 2005            
- --------------------------------------------------------------------------

Package        : glibc
Vulnerability  : insecure temporary files
Problem-Type   : local
Debian-specific: no
CVE ID         : CAN-2004-0968
BugTraq ID     : 11286
Debian Bug     : 279680 278278 205600

Several insecure uses of temporary files have been discovered in
support scripts in the libc6 package which provices the c library for
a GNU/Linux system.  Trustix developers found that the catchsegv
script uses temporary files insecurely.  Openwall developers
discovered insecure temporary files in the glibcbug script.  These
scripts are vulnerable to a symlink attack.

For the stable distribution (woody) these problems have been fixed in
version 2.2.5-11.8.

For the unstable distribution (sid) these problems have been fixed in
version 2.3.2.ds1-20.

We recommend that you upgrade your libc6 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:
      Size/MD5 checksum:     1458 bc2b80a7f76bbf4243fa86f5245f5a50
      Size/MD5 checksum:   399970 4e1576598f13f2a628b3eef2c9bcdc48
      Size/MD5 checksum: 11370961 bf5653fdff22ee350bd7d48047cffab9

  Architecture independent components:
      Size/MD5 checksum:  2699182 c7a50fe321349d3593a8aa14a1a2c86a
      Size/MD5 checksum:  3387990 8aaa9b854416e5a6e9b1a65b1bf7ea62

  Alpha architecture:
      Size/MD5 checksum:  4557986 2a37871e21fdb5a514d09110814d43b5
      Size/MD5 checksum:  1351232 def6755e17e3bc9384f9fa2c0d568b55
      Size/MD5 checksum:  2981066 41abb2fe30295e762110e4e065c9e188
      Size/MD5 checksum:  1321546 f41b8bce8503579888203ac22c866344
      Size/MD5 checksum:  1538778 526584f3262d17309a68b1c8f8888ae6
      Size/MD5 checksum:    69866 b7135768c78ffff5f453a3027e811d8b

  ARM architecture:
      Size/MD5 checksum:  3686218 05ab21bcfd365fd6e56f6745eb0005fd
      Size/MD5 checksum:  2767406 c5d453caa9030ebf82023e3ded3ff844
      Size/MD5 checksum:  2863418 4bf8522f010cc826fd494e8deac0a504
      Size/MD5 checksum:  1182298 6197804eeb01e05a195b4360115cb19d
      Size/MD5 checksum:  1282776 557442af8531a7dccf5ed38865edfac1
      Size/MD5 checksum:    59674 c191744f43225bc100f127267dbbd38b

  Intel IA-32 architecture:
      Size/MD5 checksum:  3383144 143978addc25816d4da0e850549a17fb
      Size/MD5 checksum:  2433964 efb2d99d347c2bd1f7a0904c1df18201
      Size/MD5 checksum:  2390882 78374bee4d59301db2ef508c44517260
      Size/MD5 checksum:   841904 509a1fb214b2880222014ed345ae0b5b
      Size/MD5 checksum:   936090 6580c4efcd07515f68cc557a5daeb595
      Size/MD5 checksum:    59370 07ce697d3001a44f9f69bd821cb4cd4a

  Intel IA-64 architecture:
      Size/MD5 checksum:  4438400 92d599315311e05a48512c09a392aa0e
      Size/MD5 checksum:  8369602 901aa7a7845578ae6c85ccced230924b
      Size/MD5 checksum:  3546980 2508ffbed6680d16324fc2948b08e73a
      Size/MD5 checksum:  1366172 7cc362b3711521d6f5d1b197f7a8b045
      Size/MD5 checksum:  1638402 f5294fe899e09f7fecbef931110d8d50
      Size/MD5 checksum:    69942 a79f9355cd77c4eaadbca7662f618c6a

  HP Precision architecture:
      Size/MD5 checksum:  4171374 01206d5d4970e85ba0f3ced021f0be87
      Size/MD5 checksum:  3060876 3005ba0066bde9cb5b8a4acf322e236a
      Size/MD5 checksum:  2897412 30a3ee4e876c8e5fbd8f8337c95876c1
      Size/MD5 checksum:  1280802 460366989b573c75bf6a87ad0ff12271
      Size/MD5 checksum:  1445874 15abac5f1a0ba739fe92a866b9f05e9c
      Size/MD5 checksum:    62782 180e79bd7cad42a5bfc8dfc1ff898fdc

  Motorola 680x0 architecture:
      Size/MD5 checksum:  3506132 6944762f2008e8455f6116d01e00712f
      Size/MD5 checksum:  2430672 eb8ed07f4979afa684fc0c13e0aa1608
      Size/MD5 checksum:  2284400 5c51d36868f57600a481e53259733d69
      Size/MD5 checksum:   731902 187dddf8ea4bc4404ad1a62b276c8b24
      Size/MD5 checksum:   839298 e97e9b57d6fd2dea774ae33739a5486e
      Size/MD5 checksum:    58264 75601dccba26cb706ed8caa53ea25a7e

  Big endian MIPS architecture:
      Size/MD5 checksum:  3864828 c9a688e83c24c9098b50602b63e777c4
      Size/MD5 checksum:  3846450 4d9aa1133ea550814b553f19ccace4e8
      Size/MD5 checksum:  3020726 08425a684bd8b8b363351c099fcec37f
      Size/MD5 checksum:  1204310 38a52a2e0807bb3400f4d0109cb59609
      Size/MD5 checksum:  1358842 5de4e0fea3ca4d405bf3f718a54a87f4
      Size/MD5 checksum:    61308 50ff02f524d05c3cbb5ba261feedad93

  Little endian MIPS architecture:
      Size/MD5 checksum:  3732104 7c6bca23f53680184c58b5242e849243
      Size/MD5 checksum:  3753524 d54f0987fd3f4c498ca1b3c68967046f
      Size/MD5 checksum:  2990830 4b535ca534ebf3f4ab72fd22ae217257
      Size/MD5 checksum:  1198340 7a25bfbf8be5a06fe49ab1c60e3e1aa3
      Size/MD5 checksum:  1353312 fb493b6a38d0c1c3c3d8ba4ac6445d8c
      Size/MD5 checksum:    61278 be5ad77f538097518a61bacfdb43f6f1

  PowerPC architecture:
      Size/MD5 checksum:  3980286 2e30f4f5b255e02cb1c3ccd5b903ee5c
      Size/MD5 checksum:  2870050 ae157ed4b6887b1cbe7c8e96031cdc50
      Size/MD5 checksum:  2821732 28fefa99550df3ea8669fef5d673ac87
      Size/MD5 checksum:  1148836 31be5ee73ab206a6b1478b1774b3c1bc
      Size/MD5 checksum:  1343770 4c7ad144576df8cf7ec0600dc3db1b7a
      Size/MD5 checksum:    60310 b8231054deac769a91262010fd20ec8c

  IBM S/390 architecture:
      Size/MD5 checksum:  3937552 0a06a0800512d0c8c498dc73407e74d5
      Size/MD5 checksum:  1229312 11ef3b4b76a1d11e08b61313e2eb5ace
      Size/MD5 checksum:  2624946 a7dd12533f70a9b84e7dc4d5f6ce6004
      Size/MD5 checksum:  1108534 881dc7501c54073766949a47f8060e15
      Size/MD5 checksum:  1187536 e504a04c00f655373e573f55a82e12d7
      Size/MD5 checksum:    61312 06d072845af84ffb1487e0eb75c5bfab

  Sun Sparc architecture:
      Size/MD5 checksum:  3863658 bc662d54a4174a3de369d3defeec2e4d
      Size/MD5 checksum:  2816612 ec8f0d6d5e23e27446eaf43d840098a5
      Size/MD5 checksum:  2764334 f35d4dce282125476a800a0f79017a55
      Size/MD5 checksum:  1631776 798a588c7f300c0025d4b3b298d616b5
      Size/MD5 checksum:  1146738 a681d60dc0a75f0d30a1a274842a86b1
      Size/MD5 checksum:  1258388 551ef7b7b149e288c90e53fec19073e5
      Size/MD5 checksum:  4184798 9d62c1f3dfc942e8c41e4e3954dc712d
      Size/MD5 checksum:    60220 0067b2de58cfd2663380220a489706c0

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

- ---------------------------------------------------------------------------------
For apt-get: deb stable/updates main
For dpkg-ftp: dists/stable/updates/main
Mailing list:

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