Articles / Debian: OpenLDAP DoS

Debian: OpenLDAP DoS

CERT released their advisory CA-2001-18 which lists a number of vulnerabilities in various LDAP implementations. based on the results of the PROTOS LDAPv3 test suite. These tests found one problem in OpenLDAP, a free LDAP implementation that is shipped as part of Debian GNU/Linux 2.2. The problem is that slapd did not handle packets with an invalid BER length of length fields and would crash if it received those. An attacked can use this to mount a denial of service attack remotely. Fixed packages are available from security.debian.org.
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- ------------------------------------------------------------------------
Debian Security Advisory DSA-068-1                   security@debian.org
http://www.debian.org/security/                         Wichert Akkerman
August  9, 2001
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Package        : openldap
Problem type   : remote DoS
Debian-specific: no

CERT released their advisory CA-2001-18 which lists a number of
vulnerabilities in various LDAP implementations. based on the 
results of the PROTOS LDAPv3 test suite. These tests found one
problem in OpenLDAP, a free LDAP implementation that is shipped
as part of Debian GNU/Linux 2.2.

The problem is that slapd did not handle packets with an invalid
BER length of length fields and would crash if it received those.
An attacked can use this to mount a denial of service attack
remotely.

This problem has been fixed in version 1.2.11-1, and we recommend
that you upgrade your slapd package immediately.

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


Debian GNU/Linux 2.2 alias potato
- ---------------------------------

  Potato was released for alpha, arm, i386, m68k, powerpc and sparc.

  Source archives:
    http://security.debian.org/dists/stable/updates/main/source/openldap_1.2.12-1.dsc
      MD5 checksum: b504c90a83025dc6a916187ddabf792a
    http://security.debian.org/dists/stable/updates/main/source/openldap_1.2.12-1.tar.gz
      MD5 checksum: 651c7995d73e4450568f8c43b556b38d

  Architecture independent archives:
    http://security.debian.org/dists/stable/updates/main/binary-all/ldap-rfc_1.2.12-1_all.deb
      MD5 checksum: be2f6eb1965dc7b34149bc6518f74e58
    http://security.debian.org/dists/stable/updates/main/binary-all/libopenldap-runtime_1.2.12-1_all.deb
      MD5 checksum: 6f1031e6e83f2fbb70a01084add8a1db

  ARM architecture:
    http://security.debian.org/dists/stable/updates/main/binary-arm/libopenldap-dev_1.2.12-1_arm.deb
      MD5 checksum: dbcfe982fe36fb41ac27f3c3f06423b8
    http://security.debian.org/dists/stable/updates/main/binary-arm/libopenldap1_1.2.12-1_arm.deb
      MD5 checksum: d1fca5f66dbffd5240049f5b15960e6a
    http://security.debian.org/dists/stable/updates/main/binary-arm/openldap-gateways_1.2.12-1_arm.deb
      MD5 checksum: c20e3f096ec42a553b4d3b999aff4676
    http://security.debian.org/dists/stable/updates/main/binary-arm/openldap-utils_1.2.12-1_arm.deb
      MD5 checksum: aff72b6641b7b3fad9875104b0684bbe
    http://security.debian.org/dists/stable/updates/main/binary-arm/openldapd_1.2.12-1_arm.deb
      MD5 checksum: 6127f3c0fc228daedbb511f9310d3ce7

  Alpha architecture:
    http://security.debian.org/dists/stable/updates/main/binary-alpha/libopenldap-dev_1.2.12-1_alpha.deb
      MD5 checksum: 6109c93d8c9c6dd35d6d0ec97126277a
    http://security.debian.org/dists/stable/updates/main/binary-alpha/libopenldap1_1.2.12-1_alpha.deb
      MD5 checksum: f9de7d3a6fae1e7480ac38693cc54620
    http://security.debian.org/dists/stable/updates/main/binary-alpha/openldap-gateways_1.2.12-1_alpha.deb
      MD5 checksum: 01f7970379df0e81324f3c0f23d42693
    http://security.debian.org/dists/stable/updates/main/binary-alpha/openldap-utils_1.2.12-1_alpha.deb
      MD5 checksum: d3469131b4b1064abcd0fb1901ff724f
    http://security.debian.org/dists/stable/updates/main/binary-alpha/openldapd_1.2.12-1_alpha.deb
      MD5 checksum: 22bfe11e0129548734ed7d93dc5e981e

  Intel IA-32 architecture:
    http://security.debian.org/dists/stable/updates/main/binary-i386/libopenldap-dev_1.2.12-1_i386.deb
      MD5 checksum: f38364b6f9b3a5089d58a792d0daca0a
    http://security.debian.org/dists/stable/updates/main/binary-i386/libopenldap1_1.2.12-1_i386.deb
      MD5 checksum: 00d96465ef85947015775996b44680b5
    http://security.debian.org/dists/stable/updates/main/binary-i386/openldap-gateways_1.2.12-1_i386.deb
      MD5 checksum: 3fa22bee43b35864d82fdb8e5118aeb5
    http://security.debian.org/dists/stable/updates/main/binary-i386/openldap-utils_1.2.12-1_i386.deb
      MD5 checksum: 0af27bf23ef1310c4f74f574ce11b1af
    http://security.debian.org/dists/stable/updates/main/binary-i386/openldapd_1.2.12-1_i386.deb
      MD5 checksum: fdf3b4c4fd3180470741128d06374c1e

  Motorola 680x0 architecture:
    http://security.debian.org/dists/stable/updates/main/binary-m68k/libopenldap-dev_1.2.12-1_m68k.deb
      MD5 checksum: 8aed132786db3d12f611f0a3afc5a6c2
    http://security.debian.org/dists/stable/updates/main/binary-m68k/libopenldap1_1.2.12-1_m68k.deb
      MD5 checksum: b58d824141a544a3e1df5fe02ae96274
    http://security.debian.org/dists/stable/updates/main/binary-m68k/openldap-gateways_1.2.12-1_m68k.deb
      MD5 checksum: de25fa556977ad1fb5d474c6b5029427
    http://security.debian.org/dists/stable/updates/main/binary-m68k/openldap-utils_1.2.12-1_m68k.deb
      MD5 checksum: bba46b697ab1e70803f1527284344b3f
    http://security.debian.org/dists/stable/updates/main/binary-m68k/openldapd_1.2.12-1_m68k.deb
      MD5 checksum: 8bc7e0c915a28ebaab589ed5fa4dd601

  PowerPC architecture:
    http://security.debian.org/dists/stable/updates/main/binary-powerpc/libopenldap-dev_1.2.12-1_powerpc.deb
      MD5 checksum: 30cf58da153851a7393df83f5765e8eb
    http://security.debian.org/dists/stable/updates/main/binary-powerpc/libopenldap1_1.2.12-1_powerpc.deb
      MD5 checksum: 9c8a2df3a2e5dbead38ce04fa82a307f
    http://security.debian.org/dists/stable/updates/main/binary-powerpc/openldap-gateways_1.2.12-1_powerpc.deb
      MD5 checksum: 64859231a0e753b774ab6142977a8940
    http://security.debian.org/dists/stable/updates/main/binary-powerpc/openldap-utils_1.2.12-1_powerpc.deb
      MD5 checksum: ed8d8f3309111ce8181db4bd4ce83960
    http://security.debian.org/dists/stable/updates/main/binary-powerpc/openldapd_1.2.12-1_powerpc.deb
      MD5 checksum: 5a1bbd5a875db731ecc0d3abc8707ad9

  Sun Sparc architecture:
    http://security.debian.org/dists/stable/updates/main/binary-sparc/libopenldap-dev_1.2.12-1_sparc.deb
      MD5 checksum: c9f0dbbe70c2b9922fa327ed77a60933
    http://security.debian.org/dists/stable/updates/main/binary-sparc/libopenldap1_1.2.12-1_sparc.deb
      MD5 checksum: c54dd0d7370ba9aec444e91ddab76d51
    http://security.debian.org/dists/stable/updates/main/binary-sparc/openldap-gateways_1.2.12-1_sparc.deb
      MD5 checksum: bf37a70edf4962d98ad4ca72d9c45a5d
    http://security.debian.org/dists/stable/updates/main/binary-sparc/openldap-utils_1.2.12-1_sparc.deb
      MD5 checksum: aed5adf8a7b4ce89c4b693591190f1d1
    http://security.debian.org/dists/stable/updates/main/binary-sparc/openldapd_1.2.12-1_sparc.deb
      MD5 checksum: 5373ae34853af6ae6d746574d3c1a9ec


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

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

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