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Fencer Intel
medium 6.9

CVE-2010-4527 json

The load_mixer_volumes function in sound/oss/soundcard.c in the OSS sound subsystem in the Linux kernel before 2.6.37 incorrectly expects t…

published 15y ago modified 4mo ago also EUVD-2010-4495

cvss
6.9
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 42%
public exploits
0
none known

Summary

The load_mixer_volumes function in sound/oss/soundcard.c in the OSS sound subsystem in the Linux kernel before 2.6.37 incorrectly expects that a certain name field ends with a '\0' character, which allows local users to conduct buffer overflow attacks and gain privileges, or possibly obtain sensitive information from kernel memory, via a SOUND_MIXER_SETLEVELS ioctl call.

Patch / fix

  • linux linux_kernel 2.6.37
  • kernel RHEL 4 2.6.9-100.EL
  • kernel-smp RHEL 4 2.6.9-100.EL
  • kernel-xenU RHEL 4 2.6.9-100.EL
  • kernel-hugemem RHEL 4 2.6.9-100.EL
  • kernel-largesmp RHEL 4 2.6.9-100.EL

red hat advisories RHSA-2011:0263

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2010-4527 updated cvss 6.6

kernel: buffer overflow in OSS load_mixer_volumes

  • Red Hat Enterprise Linux 5 kernel
    affected: no fix available
  • Red Hat Enterprise Linux AS version 4 kernel 2.6.9-100.EL, kernel-smp 2.6.9-100.EL, kernel-xenU 2.6.9-100.EL, kernel-hugemem 2.6.9-100.EL, kernel-largesmp 2.6.9-100.EL Red Hat Enterprise Linux Desktop version 4 kernel 2.6.9-100.EL, kernel-smp 2.6.9-100.EL, kernel-xenU 2.6.9-100.EL, kernel-hugemem 2.6.9-100.EL, kernel-largesmp 2.6.9-100.EL Red Hat Enterprise Linux ES version 4 kernel 2.6.9-100.EL, kernel-smp 2.6.9-100.EL, kernel-xenU 2.6.9-100.EL, kernel-hugemem 2.6.9-100.EL, kernel-largesmp 2.6.9-100.EL Red Hat Enterprise Linux WS version 4 kernel 2.6.9-100.EL, kernel-smp 2.6.9-100.EL, kernel-xenU 2.6.9-100.EL, kernel-hugemem 2.6.9-100.EL, kernel-largesmp 2.6.9-100.EL
    fixed: vendor fix RHSA-2011:0263

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.49% chance of exploitation in the next 30 days, higher than 42% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • xorl.wordpress.com http://xorl.wordpress.com/2011/01/09/cve-2010-4527-linux-kernel-oss-sound-card-driver-buffer-overflow/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 6.9 AV:L/AC:M/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-120 Buffer Copy without Checking Size of Input
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.