inflate.c in the zlib routines in the Linux kernel before 2.6.12.5 allows remote attackers to cause a denial of service (kernel crash) via a compressed file with "improper tables".
Exploitability
AV:NAC:LAu:NImpact
C:NI:NA:P5/AV:N/AC:L/Au:N/C:N/I:N/A:P