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Home » Hacking News » DSA 187-1-New Apache packages fix several vulnerabilities

DSA 187-1-New Apache packages fix several vulnerabilities

by Nikola Strahija on November 5th, 2002 According to David Wagner, iDEFENSE and the Apache HTTP Server Project, several remotely exploitable vulnerabilities have been found in the Apache package, a commonly used webserver. These vulnerabilities could allow an attacker to enact a denial of service against a server or execute a cross scripting attack. The Common Vulnerabilities and Exposures (CVE) project identified the following vulnerabilities:

1. CAN-2002-0839: A vulnerability exists on platforms using System V
shared memory based scoreboards. This vulnerability allows an
attacker who can execute under the Apache UID to exploit the Apache
shared memory scoreboard format and send a signal to any process as
root or cause a local denial of service attack.

2. CAN-2002-0840: Apache is susceptible to a cross site scripting
vulnerability in the default 404 page of any web server hosted on a
domain that allows wildcard DNS lookups.

3. CAN-2002-0843: There were some possible overflows in the utility
ApacheBench (ab) which could be exploited by a malicious server.

4. CAN-2002-1233: A race condition in the htpasswd and htdigest
program enables a malicious local user to read or even modify the
contents of a password file or easily create and overwrite files as
the user running the htpasswd (or htdigest respectively) program.

5. CAN-2001-0131: htpasswd and htdigest in Apache 2.0a9, 1.3.14, and
others allows local users to overwrite arbitrary files via a
symlink attack.

This is the same vulnerability as CAN-2002-1233, which was fixed in
potato already but got lost later and was never applied upstream.

5. NO-CAN: Several buffer overflows have been found in the ApacheBench
(ab) utility that could be exploited by a remote server returning
very long strings.

These problems have been fixed in version 1.3.26-0woody3 for the
current stable distribution (woody) and in 1.3.9-14.3 for the old
stable distribution (potato). Corrected packages for the unstable
distribution (sid) are expected soon.

We recommend that you upgrade your Apache package immediately.

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 2.2 alias potato
- ---------------------------------

Source archives:
Size/MD5 checksum: 345741 5f88eecddfe95c8366888bb71e0917ce
Size/MD5 checksum: 666 d69af430768983c68a2d881c4c9ee236
Size/MD5 checksum: 1691969 6758fe8b931be0b634b6737d9debf703

Architecture independent components:
Size/MD5 checksum: 544588 95611594e54cb8bf69b5ffa47598a17d

Alpha architecture:
Size/MD5 checksum: 409920 178a31efa994c54161515d7e5dceb32a
Size/MD5 checksum: 809564 102b7a7ed3be7752ff80f209c755ca8e
Size/MD5 checksum: 754386 39db60aedbba0afaa45015149e6cabd6

ARM architecture:
Size/MD5 checksum: 366248 3cba61971237b64017d19ed554d89d99
Size/MD5 checksum: 738516 650be6a02b3f3dd8ede817e29ab81afa
Size/MD5 checksum: 555462 cf94ce0aff0b69003a015e6fba73cc3c

Intel IA-32 architecture:
Size/MD5 checksum: 359946 aae786f44f00d4c62b09ccd33fbef609
Size/MD5 checksum: 718786 33046433f742f4bf5628d82afad4c18e
Size/MD5 checksum: 548902 86fd170a541de8c70d5abff2fca8d544

Motorola 680x0 architecture:
Size/MD5 checksum: 349398 e508d96353523cd52d1530ab3dc90494
Size/MD5 checksum: 724182 8fa69e2b49a7448d94ed50a89f680eb6
Size/MD5 checksum: 549044 ba2ca56e2048b72b0af0abcbfa667603

PowerPC architecture:
Size/MD5 checksum: 372956 1a4130e6e35649062bdfe9eb31ba416f
Size/MD5 checksum: 744222 abe11e9934a4aef4e518901f6f7aa514
Size/MD5 checksum: 574710 6c3fe2b6c5e1ea07552da8a2e6470c7e

Sun Sparc architecture:
Size/MD5 checksum: 369762 136624ff5072da52ead45ad5e99000bc
Size/MD5 checksum: 766658 b4625a1f3489dc02cb624fb9d5deffdd
Size/MD5 checksum: 559904 a2bf67269a3c48a036b9ac64b791ee5d

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

Source archives:
Size/MD5 checksum: 324523 41008783f82dc718ac683db882797722
Size/MD5 checksum: 668 f379e80785f1308c90da3c26f081e647
Size/MD5 checksum: 2586182 5cd778bbe6906b5ef39dbb7ef801de61

Architecture independent components:
Size/MD5 checksum: 1022554 a13fce3a93f137ef243bc743e7b5a57d

Alpha architecture:
Size/MD5 checksum: 395402 fef4da568cae603f57adbae95a76a592
Size/MD5 checksum: 925748 38631e1fb7f2a1e8df604eaeda11591f
Size/MD5 checksum: 713834 5b6bca42fbcaf810079c2654cfef2d1d

ARM architecture:
Size/MD5 checksum: 361042 f3a265c6a6e36f58a6b751095f46b0ad
Size/MD5 checksum: 838450 b448f9c0d51e144332d3f6f19ecdb59e
Size/MD5 checksum: 544250 e9637f6e8771c5e24cebb811cf4a3311

Intel IA-32 architecture:
Size/MD5 checksum: 353130 95d81b2239554383c56c7d193c476ddb
Size/MD5 checksum: 813172 98146bac67cff4cf252e4ff2bbbb6560
Size/MD5 checksum: 535652 c1159fd49c0cf0aec2bca984f93d6f25

Intel IA-64 architecture:
Size/MD5 checksum: 436772 e0052fc13623fdf6658897af57ccfe57
Size/MD5 checksum: 1011984 430974e4b9b3a79ed4058289bbab6acf
Size/MD5 checksum: 949028 ea2448657dbe3d4ce4f8298e4d49384e

HP Precision architecture:
Size/MD5 checksum: 386082 d1a30db030dc4bff1c81218a4a051643
Size/MD5 checksum: 890940 4d4a7cc736df264e3162dc809629dc65
Size/MD5 checksum: 586982 4ddcb6a10031dee8d29059db2ae906fe

Motorola 680x0 architecture:
Size/MD5 checksum: 347810 9a13cf03c077aba227aa8ce40aabd7e7
Size/MD5 checksum: 820744 3e50ff2e1980cde0009e8d681ba7a1ad
Size/MD5 checksum: 537150 ea8b8c14ac0b198a50fc73197cdbdaab

Big endian MIPS architecture:
Size/MD5 checksum: 376358 1d82148e1e8bf0eacd544681ac668e25
Size/MD5 checksum: 843814 e689b5b5fdcec8d6e9bf44ec672eee8b
Size/MD5 checksum: 576300 b8a0b03fd2d119a7519a16acec316e0b

Little endian MIPS architecture:
Size/MD5 checksum: 376424 0e669f97720075d01ee294054da1cd1e
Size/MD5 checksum: 842510 d563cfe249296461fa2aa998e7f479f6
Size/MD5 checksum: 565518 54a136314491e2f9ce42d3ba9a2b148f

PowerPC architecture:
Size/MD5 checksum: 366902 210e698fe3f282f5a0ec0455351f0f71
Size/MD5 checksum: 845816 eeb281d15a03845769ad8db36ced9f69
Size/MD5 checksum: 558800 9782db00bede5da95c77fda15756e603

IBM S/390 architecture:
Size/MD5 checksum: 360932 dac73742388690f1ffe240f18e3b4d3a
Size/MD5 checksum: 828556 e7ba2937fa91341e1dd2e1f0ab4a5fb3
Size/MD5 checksum: 554128 630504452f6cf1067c17124e805a0f33

Sun Sparc architecture:
Size/MD5 checksum: 360822 6a4bd36487e3f0e98be588eb367c3c6a
Size/MD5 checksum: 847188 4d3dd23c4f4e7e2245aeeb2c96b67743
Size/MD5 checksum: 544730 10b2d3630f525b1ec15f813540450d10

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

- ---------------------------------------------------------------------------------
For apt-get: deb stable/updates main
For dpkg-ftp: dists/stable/updates/main
Mailing list: [email protected]
Package info: `apt-cache show ' and;

Version: GnuPG v1.0.7 (GNU/Linux)


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