Author: JT Smith
Mandrake: “[Z]en-parse discovered a problem in the at command containing an extra call to free() which can lead to a segfault with a carefully crafted, but incorrect, format. This is caused due to a heap corruption that can be exploited under certain circumstances because the at command is installed setuid root. Thanks to SuSE for an additional security improvement that ads the O_EXCL (exclusive) option to the open(2) system call inside the at code.”
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Mandrake Linux Security Update Advisory
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Package name: at
Advisory ID: MDKSA-2002:007
Date: January 18th, 2002
Affected versions: 8.1
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Problem Description:
zen-parse discovered a problem in the at command containing an extra
call to free() which can lead to a segfault with a carefully crafted,
but incorrect, format. This is caused due to a heap corruption that
can be exploited under certain circumstances because the at command is
installed setuid root. Thanks to SuSE for an additional security
improvement that ads the O_EXCL (exclusive) option to the open(2)
system call inside the at code.
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References:
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Updated Packages:
Mandrake Linux 8.1:
066814fda6dfc8f74721861a90c1d167 8.1/RPMS/at-3.1.8-4.1mdk.i586.rpm
8205596ce7b87d8dca57a6d9285dd1d1 8.1/SRPMS/at-3.1.8-4.1mdk.src.rpm
Mandrake Linux 8.1/ia64:
bc46bc259124e1de45063503d8be2940 ia64/8.1/RPMS/at-3.1.8-4.1mdk.ia64.rpm
8205596ce7b87d8dca57a6d9285dd1d1 ia64/8.1/SRPMS/at-3.1.8-4.1mdk.src.rpm
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Bug IDs fixed (see https://qa.mandrakesoft.com for more information):
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To upgrade automatically, use MandrakeUpdate. The verification of md5
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If you want to upgrade manually, download the updated package from one
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Please verify the update prior to upgrading to ensure the integrity of
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Please be aware that sometimes it takes the mirrors a few hours to
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If you want to report vulnerabilities, please contact
security@linux-mandrake.com
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Type Bits/KeyID Date User ID
pub 1024D/22458A98 2000-07-10 Linux Mandrake Security Team
security@linux-mandrake.com>
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