Red Hat Bugzilla – Bug 165681
CVE-2005-2458 gzip/zlib flaws (ipf)
Last modified: 2007-11-30 17:06:54 EST
+++ This bug was initially created as a clone of Bug #165679 +++
Tim Yamin from Gentoo noticed that some older security related bugs in the
decompression code had not been fixed in the kernel. This is fairly minor as
there are few places where the kernel decompresses arbitrary data. However it
could be a problem for things like zisofs (if someone mounts a malicious
filesystem), perhaps cslip or ppp too).
Fix for 2.6 is here, pretty much identical for 2.4:
Sergey Vlasov has done some analysis on these issues and discovered that the
changes in file lib/zlib_inflate/inftrees.c are incorrect and in fact are not
needed. Gentoo have agreed and therefore from the patch above please ignore the
lib/zlib_inflate/inftrees.c hunk. This means that CAN-2005-2549 is dropped, but
CAN-2005-2548 still applies.
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.