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Home >> Browse Vulnerability Assessment Database >> Debian Local Security Checks >> [DSA454] DSA-454-1 linux-kernel-2.2.22-alpha

Vulnerability Assessment Details

[DSA454] DSA-454-1 linux-kernel-2.2.22-alpha

Vulnerability Assessment Summary
DSA-454-1 linux-kernel-2.2.22-alpha

Detailed Explanation for this Vulnerability Assessment

Paul Starzetz and Wojciech Purczynski of href="">discovered a critical
security vulnerability in the memory management code of Linux inside
the mremap(2) system call. Due to flushing the TLB (Translation
Lookaside Buffer, an address cache) too early it is possible for an
attacker to trigger a local root exploit.
The attack vectors for 2.4.x and 2.2.x kernels are exclusive for the
respective kernel series, though. We formerly believed that the
exploitable vulnerability in 2.4.x does not exist in 2.2.x which is
still true. However, it turned out that a second (sort of)
vulnerability is indeed exploitable in 2.2.x, but not in 2.4.x, with a
different exploit, of course.
For the stable distribution (woody) this problem has been fixed in
the following versions and architectures:
For the unstable distribution (sid) this problem will be fixed soon
for the architectures that still ship a 2.2.x kernel package.
We recommend that you upgrade your Linux kernel package.
Vulnerability matrix for CVE-2004-0077

Solution :
Network Security Threat Level: High

Networks Security ID: 9686

Vulnerability Assessment Copyright: This script is (C) 2005 Michel Arboi

Cables, Connectors

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Apple MacBook Air 13.3Apple iMac 21.5" Desktop - MD093LL/A - 2.7 GHz Core i5 8GB RAM 1TB HDD - NT33
Apple iMac 21.5MacBook Air Core i5 1.7GHz 4GB RAM 13" Mid-2011 broken (PLEASE READ)
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Dell PowerEdge 1950 1U Server 2xQuad-Core Xeon 3.0GHz + 48GB RAM + 4x500GB RAID picture


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