The decompression algorithm in zlib 1.1.3 and earlier, as used in many
different utilities and packages, causes inflateEnd to release certain
memory more than once (a "double free"), which may allow local and
remote attackers to execute arbitrary code via a block of malformed
Note:References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
BUGTRAQ:20020311 security problem fixed in zlib 1.1.4
BUGTRAQ:20020312 exploiting the zlib bug in openssh
VULNWATCH:20020312 exploiting the zlib bug in openssh
VULNWATCH:20020311 [VulnWatch] zlibscan : script to find suid binaries possibly affected by zlib vulnerability
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discovered, shared with the affected vendor, publicly
disclosed, or updated in CVE.
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