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CVE-2007-4571

Publication date 26 September 2007

Last updated 24 July 2024

Ubuntu priority

Low

Why this priority?

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.

Read the notes from the security team

Status

Package Ubuntu Release Status
linux 8.04 LTS hardy
Not affected
linux-source-2.6.15 6.06 LTS dapper
Fixed 2.6.15-52.67
linux-source-2.6.17 6.10 edgy Ignored
linux-source-2.6.20 7.04 feisty
Fixed 2.6.20-17.36
linux-source-2.6.22 7.10 gutsy
Fixed 2.6.22-12.39

Notes

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