CVE-2007-4311

medium
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Description

The xfer_secondary_pool function in drivers/char/random.c in the Linux kernel 2.4 before 2.4.35 performs reseed operations on only the first few bytes of a buffer, which might make it easier for attackers to predict the output of the random number generator, related to incorrect use of the sizeof operator.

References

http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.4.34.y.git;a=commit;h=bd67d4c7b11cc33ebdc346bc8926d255b354cd64

http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.4.34.y.git;a=commit;h=faa3369ac2ea7feb0dd266b6a5e8d6ab153cf925

http://secunia.com/advisories/29058

http://www.debian.org/security/2008/dsa-1503

http://www.kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.34.6

http://www.kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.35

http://www.securityfocus.com/bid/25029

http://www.vupen.com/english/advisories/2007/2690

Details

Source: MITRE

Published: 2007-08-13

Updated: 2011-05-25

Type: CWE-310

Risk Information

CVSS v2

Base Score: 6.8

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 8.6

Severity: MEDIUM

Vulnerable Software

Configuration 1

OR

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to 2.4.34 (inclusive)

Tenable Plugins

View all (1 total)

IDNameProductFamilySeverity
31147Debian DSA-1503-1 : kernel-source-2.4.27 - several vulnerabilitiesNessusDebian Local Security Checks
high