Date: Tue, 11 Dec 2007 18:05:59 -0500
From: Lebbeous Weekley <lebbeous@...ricanelabs.com>
To: full-disclosure@...ts.grok.org.uk
Subject: [SECURITY] [DSA 1430-1] New libnss-ldap packages
	fix denial of service

I'm sure we'd get this anyway, but I am supposed to to open tickets for
this kind of thing.

-- 
Lebbeous Weekley
Software Engineer, Hurricane Labs
PGP: https://www.hurricanelabs.com/lebbeous.asc


Steve Kemp wrote:
> ------------------------------------------------------------------------
> Debian Security Advisory DSA-1430-1                  security@...ian.org
> http://www.debian.org/security/                               Steve Kemp
> December 11, 2007                     http://www.debian.org/security/faq
> ------------------------------------------------------------------------
> 
> Package        : libnss-ldap
> Vulnerability  : denial of service
> Problem type   : local
> Debian-specific: no
> CVE Id(s)      : CVE-2007-5794
> Debian Bug     : 453868
> 
> It was reported that a race condition exists in libnss-ldap, an
> NSS module for using LDAP as a naming service, which could cause
> denial of service attacks when applications use pthreads.
> 
> This problem was spotted in the dovecot IMAP/POP server but
> potentially affects more programs.
> 
> For the stable distribution (etch), this problem has been fixed in version
> 251-7.5etch1.
> 
> For the old stable distribution (sarge), this problem has been fixed in
> version 238-1sarge1.
> 
> For the unstable distribution (sid), this problem has been fixed in
> version 256-1.
> 
> We recommend that you upgrade your libnss-ldap 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 3.1 alias sarge
> --------------------------------
> 
> Source archives:
> 
>   http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_238.orig.tar.gz
>     Size/MD5 checksum:   219945 97fd929b381329b972b3c3ddca5a4bbf
>   http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_238-1sarge1.diff.gz
>     Size/MD5 checksum:    26236 c7191ee3845dc23ccf2712e78daed8f1
>   http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_238-1sarge1.dsc
>     Size/MD5 checksum:      681 3176fefa1d8d04afa9d3b458e40694a6
> 
> alpha architecture (DEC Alpha)
> 
>   http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_238-1sarge1_alpha.deb
>     Size/MD5 checksum:    86756 30a9c1691dcec614e36fdea923ba3906
> 
> amd64 architecture (AMD x86_64 (AMD64))
> 
>   http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_238-1sarge1_amd64.deb
>     Size/MD5 checksum:    80218 18d9da468326040f466c10cac6f50734
> 
> arm architecture (ARM)
> 
>   http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_238-1sarge1_arm.deb
>     Size/MD5 checksum:    79216 adf473266dd1de600cc0360f697ec7d2
> 
> hppa architecture (HP PA RISC)
> 
>   http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_238-1sarge1_hppa.deb
>     Size/MD5 checksum:    86324 f98ade45a20c5426ef30cb1290e34164
> 
> i386 architecture (Intel ia32)
> 
>   http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_238-1sarge1_i386.deb
>     Size/MD5 checksum:    78894 7bb744d57899867a0b1c326372de76ce
> 
> ia64 architecture (Intel ia64)
> 
>   http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_238-1sarge1_ia64.deb
>     Size/MD5 checksum:    91930 d25cce59d45f8b8dc90b0fe3fcbf3ce0
> 
> m68k architecture (Motorola Mc680x0)
> 
>   http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_238-1sarge1_m68k.deb
>     Size/MD5 checksum:    76894 3c574bc294eb02c337664de43e814f7f
> 
> mips architecture (MIPS (Big Endian))
> 
>   http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_238-1sarge1_mips.deb
>     Size/MD5 checksum:    80482 0e54d051dde87e3b7984650c47bc3b3e
> 
> mipsel architecture (MIPS (Little Endian))
> 
>   http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_238-1sarge1_mipsel.deb
>     Size/MD5 checksum:    80594 9f3f4b5d6d7c9e6f84edd9ab40767e04
> 
> powerpc architecture (PowerPC)
> 
>   http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_238-1sarge1_powerpc.deb
>     Size/MD5 checksum:    81652 7ca152887a041fc3dc674a77e707d23f
> 
> s390 architecture (IBM S/390)
> 
>   http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_238-1sarge1_s390.deb
>     Size/MD5 checksum:    83806 eab2386a51d35e31a4dd7fd0ed832a6d
> 
> sparc architecture (Sun SPARC/UltraSPARC)
> 
>   http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_238-1sarge1_sparc.deb
>     Size/MD5 checksum:    79224 7d2ec91b89037fd137e98d3640ba1bb4
> 
> 
> Debian GNU/Linux 4.0 alias etch
> -------------------------------
> 
> Source archives:
> 
>   http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_251-7.5etch1.diff.gz
>     Size/MD5 checksum:   149322 04aa24732e69f40e5c3ab629b7e412d4
>   http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_251.orig.tar.gz
>     Size/MD5 checksum:   228931 a80718b3f7cf46f2579a26f9d6fbcd46
>   http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_251-7.5etch1.dsc
>     Size/MD5 checksum:      683 007acb586d8bf61058c446a08aae4804
> 
> alpha architecture (DEC Alpha)
> 
>   http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_251-7.5etch1_alpha.deb
>     Size/MD5 checksum:   108812 1150911f5446d2bc7838fd3d9d56329d
> 
> amd64 architecture (AMD x86_64 (AMD64))
> 
>   http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_251-7.5etch1_amd64.deb
>     Size/MD5 checksum:   105206 7f2e2292e5c213a4d59e0c7240a9ca7e
> 
> arm architecture (ARM)
> 
>   http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_251-7.5etch1_arm.deb
>     Size/MD5 checksum:   103946 bb4984bf517834f0278f00e8ba32a4ba
> 
> hppa architecture (HP PA RISC)
> 
>   http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_251-7.5etch1_hppa.deb
>     Size/MD5 checksum:   111288 2a7f758efdf03c296b2feea08205cdc7
> 
> i386 architecture (Intel ia32)
> 
>   http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_251-7.5etch1_i386.deb
>     Size/MD5 checksum:   103732 0f29d1991d204b4a710e5f74bf056984
> 
> ia64 architecture (Intel ia64)
> 
>   http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_251-7.5etch1_ia64.deb
>     Size/MD5 checksum:   120362 e5649299793b90c3987305ac2212afad
> 
> mips architecture (MIPS (Big Endian))
> 
>   http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_251-7.5etch1_mips.deb
>     Size/MD5 checksum:   105148 1f42e34610dc974a6a5ff19a2dff1b24
> 
> mipsel architecture (MIPS (Little Endian))
> 
>   http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_251-7.5etch1_mipsel.deb
>     Size/MD5 checksum:   105360 af1ff4fd5a543b50f704a022798ebed0
> 
> powerpc architecture (PowerPC)
> 
>   http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_251-7.5etch1_powerpc.deb
>     Size/MD5 checksum:   106458 13b702d831bde6e52507fdd466573122
> 
> s390 architecture (IBM S/390)
> 
>   http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_251-7.5etch1_s390.deb
>     Size/MD5 checksum:   108466 10bc9129adbc56dd6c75569fc27a221c
> 
> sparc architecture (Sun SPARC/UltraSPARC)
> 
>   http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_251-7.5etch1_sparc.deb
>     Size/MD5 checksum:   103134 12c84546a715bca647b86943a226b361
> 
> 
>   These files will probably be moved into the stable distribution on
>   its next update.
> 
> ---------------------------------------------------------------------------------
> 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: debian-security-announce@...ts.debian.org
> Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg>

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_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/

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