Vulnerability CVE-2008-4996


Published: 2008-11-07   Modified: 2012-02-13

Description:
** DISPUTED ** init in initramfs-tools 0.92f allows local users to overwrite arbitrary files via a symlink attack on the /tmp/initramfs.debug temporary file. NOTE: the vendor disputes this vulnerability, stating that "init is [used in] a single-user context; there's no possibility that this is exploitable."

Type:

CWE-59

(Improper Link Resolution Before File Access ('Link Following'))

CVSS2 => (AV:L/AC:M/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.9/10
10/10
3.4/10
Exploit range
Attack complexity
Authentication
Local
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Debian -> Initramfs-tools 

 References:
https://bugs.gentoo.org/show_bug.cgi?id=235770
http://www.openwall.com/lists/oss-security/2008/10/30/2
http://dev.gentoo.org/~rbu/security/debiantemp/initramfs-tools
http://bugs.debian.org/496386

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