Bug#296906: marked as done (CAN-2005-0530: information disclosure because of signedness error in copy_from_read_buf)
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and subject line CAN-2005-0530 not in 2.4.27
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From: Stefan Fritsch <sf@sfritsch.de>
To: Debian Bug Tracking System <submit@bugs.debian.org>
Subject: CAN-2005-0530: information disclosure because of signedness error in
copy_from_read_buf
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Date: Fri, 25 Feb 2005 15:40:51 +0100
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Package: kernel-source-2.6.8
Version: 2.6.8-13
Severity: grave
Tags: security
Justification: user security hole
"Signedness error in the copy_from_read_buf function in n_tty.c for
Linux kernel 2.6.10 and 2.6.11rc1 allows local users to read kernel
memory via a negative argument."
The offending code is also in 2.6.8 and 2.4.27.
A fix is at
http://linux.bkbits.net:8080/linux-2.6/cset@420181322LZmhPTewcCOLkubGwOL3w
Advisory at
http://marc.theaimsgroup.com/?l=full-disclosure&m=110846727602817&w=2
Please also fix 2.6.9 and 2.6.10
-- System Information:
Debian Release: 3.1
APT prefers unstable
APT policy: (500, 'unstable')
Architecture: i386 (i686)
Kernel: Linux 2.6.10-as2-stf-k-1
Locale: LANG=de_DE@euro, LC_CTYPE=de_DE@euro (charmap=ISO-8859-15)
Versions of packages kernel-source-2.6.8 depends on:
ii binutils 2.15-5 The GNU assembler, linker and bina
ii bzip2 1.0.2-5 high-quality block-sorting file co
ii coreutils [fileutils] 5.2.1-2 The GNU core utilities
ii fileutils 5.2.1-2 The GNU file management utilities
-- no debconf information
---------------------------------------
Received: (at 296906-done) by bugs.debian.org; 24 Mar 2005 07:38:53 +0000
>From horms@koto.vergenet.net Wed Mar 23 23:38:53 2005
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Date: Thu, 24 Mar 2005 16:38:44 +0900
From: Horms <horms@debian.org>
To: 296906-done@bugs.debian.org, 296906-submitter@bugs.debian.org
Cc: micha@debian.org
Subject: CAN-2005-0530 not in 2.4.27
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According to Marcelo Tosatti, this bug is not present in 2.4,
I agree with his analysis though I previously thought
2.4.27 was vulnerable.
http://lkml.org/lkml/2005/3/23/140
--
Horms
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