Bug 86599 - CAN-2003-0107 zlib buffer overflow
CAN-2003-0107 zlib buffer overflow
Product: Red Hat Enterprise Linux 2.1
Classification: Red Hat
Component: zlib (Show other bugs)
All Linux
medium Severity medium
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Assigned To: Jeff Johnson
Jay Turner
: Security
Depends On:
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Reported: 2003-03-26 04:24 EST by Mark J. Cox
Modified: 2015-01-07 19:04 EST (History)
1 user (show)

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Doc Type: Bug Fix
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Last Closed: 2003-05-29 04:34:49 EDT
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Description Mark J. Cox 2003-03-26 04:24:11 EST
The function gzprintf within zlib, when called with a string longer than
Z_PRINTF_BUFZISE (= 4096 bytes), can overflow without giving a warning.

zlib-1.1.4 and earlier exhibit this behavior. There are no known exploits
of the gzprintf overrun, and only a few programs, including rpm2html
and gimp-print, are known to use the gzprintf function.

The problem has been fixed by checking the length of the output string
within gzprintf. 

This is CAN-2003-0107 and will be RHSA-2003:081
Comment 1 Jeff Johnson 2003-03-28 14:32:48 EST
Needinfo so I don't have to stare at the duplicate bug.
Comment 2 Mark J. Cox 2003-05-29 04:34:49 EDT
Fixed by http://rhn.redhat.com/errata/RHSA-2003-081.html

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