CVE-2007-4311

NameCVE-2007-4311
DescriptionThe 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.
SourceCVE (at NVD; oss-sec, fulldisc, OSVDB, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, more)
ReferencesDSA-1503-1, DSA-1503-2
NVD severitymedium (attack range: remote)
Debian/oldstablenot vulnerable.
Debian/stablenot known to be vulnerable.
Debian/testingnot known to be vulnerable.
Debian/unstablenot known to be vulnerable.

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux-2.6 (PTS)squeeze (security), squeeze2.6.32-48squeeze6fixed
squeeze (lts)2.6.32-48squeeze11fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
hostap-modules-i386sourcesarge1:0.3.7-1sarge3mediumDSA-1503-1
i2csourcesarge1:2.9.1-1sarge2mediumDSA-1503-1
kernel-image-2.4.27-alphasourcesarge2.4.27-10sarge6mediumDSA-1503-1
kernel-image-2.4.27-armsourcesarge2.4.27-2sarge6mediumDSA-1503-1
kernel-image-2.4.27-i386sourcesarge2.4.27-10sarge6mediumDSA-1503-1
kernel-image-2.4.27-ia64sourcesarge2.4.27-10sarge6mediumDSA-1503-1
kernel-image-2.4.27-m68ksourcesarge2.4.27-3sarge6mediumDSA-1503-1
kernel-image-2.4.27-s390sourcesarge2.4.27-2sarge6mediumDSA-1503-1
kernel-image-2.4.27-sparcsourcesarge2.4.27-9sarge6mediumDSA-1503-1
kernel-image-speakup-i386sourcesarge2.4.27-1.1sarge5mediumDSA-1503-1
kernel-latest-2.4-alphasourcesarge101sarge3mediumDSA-1503-1
kernel-latest-2.4-i386sourcesarge101sarge2mediumDSA-1503-1
kernel-latest-2.4-s390sourcesarge2.4.27-1sarge2mediumDSA-1503-1
kernel-latest-2.4-sparcsourcesarge42sarge3mediumDSA-1503-1
kernel-patch-2.4.27-mipssourcesarge2.4.27-10.sarge4.040815-3mediumDSA-1503-1
kernel-patch-powerpc-2.4.27sourcesarge2.4.27-10sarge6mediumDSA-1503-1
kernel-source-2.4.27sourcesarge2.4.27-10sarge7mediumDSA-1503-2
linux-2.6source(unstable)(not affected)
mindi-kernelsourcesarge2.4.27-2sarge5mediumDSA-1503-1
pcmcia-modules-2.4.27-i386sourcesarge3.2.5+2sarge2mediumDSA-1503-1
systemimagersourcesarge3.2.3-6sarge5mediumDSA-1503-1

Notes

- linux-2.6 <not-affected> (buffer is local to the function that uses sizeof on it)

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