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CVE-2007-4571

Published: 26 September 2007

The snd_mem_proc_read function in sound/core/memalloc.c in the Advanced Linux Sound Architecture (ALSA) in the Linux kernel before 2.6.22.8 does not return the correct write size, which allows local users to obtain sensitive information (kernel memory contents) via a small count argument, as demonstrated by multiple reads of /proc/driver/snd-page-alloc.

Notes

AuthorNote
jdstrand
kernel-sec has 'ignored (2.6.18.dfsg.1-13etch3)'
kees
ABI changer -- will roll this out when a more serious ABI change comes in

Priority

Low

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
hardy Not vulnerable

upstream
Released (2.6.22.8)
linux-source-2.6.15
Launchpad, Ubuntu, Debian
dapper
Released (2.6.15-52.67)
upstream Needs triage

linux-source-2.6.17
Launchpad, Ubuntu, Debian
edgy Ignored
(end of life)
upstream Needs triage

linux-source-2.6.20
Launchpad, Ubuntu, Debian
feisty
Released (2.6.20-17.36)
upstream Needs triage

linux-source-2.6.22
Launchpad, Ubuntu, Debian
gutsy
Released (2.6.22-12.39)
upstream Needs triage