ALSA memory disclosure flaw
Published Sep 26, 2007
2.1
LOWCVSS 2.0
EPSS 0.76%
Description
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.
Affected products
No data.
- ≤ 2.6.22.7
No data.
Red Hat Enterprise Linux 4
kernel-0:2.6.9-55.0.12.EL
Fixed · RHSA-2007:0939
Red Hat Enterprise Linux 5
kernel-0:2.6.18-53.1.4.el5
Fixed · RHSA-2007:0993
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 4 | kernel-0:2.6.9-55.0.12.EL | Fixed | RHSA-2007:0939 |
| Red Hat Enterprise Linux 5 | kernel-0:2.6.18-53.1.4.el5 | Fixed | RHSA-2007:0993 |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue did not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 2.1 or 3.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:L/AC:L/Au:N/C:P/I:N/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.76% (0.00761) | 53.66th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.76% (0.00761) | 50.35th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.13% (0.00129) | 29.81th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00042) | 5.10th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00042) | 0.50th | v3 (v2023.03.01) |
| Mar 6, 2023 | 3.22% (0.03220) | 84.21th | v2 (v2022.01.01) |
| Feb 13, 2023 | 3.22% (0.03220) | 83.79th | v2 (v2022.01.01) |
| Feb 3, 2023 | 4.67% (0.04669) | 88.73th | v2 (v2022.01.01) |
| Apr 1, 2022 | 3.22% (0.03220) | 82.61th | v2 (v2022.01.01) |
| Feb 4, 2022 | 3.22% (0.03220) | 65.30th | v2 (v2022.01.01) |
No CWE recorded.
References (33)
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=ccec6e2c4a74adf76ed4e2478091a311b1806212 x_refsource_CONFIRM
- http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.22.8 x_refsource_CONFIRM
- http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=600 third-party-advisoryx_refsource_IDEFENSE
- http://secunia.com/advisories/26918 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/26980 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/26989 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/27101 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/27227 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/27436 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/27747 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/27824 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/28626 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/29054 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/30769 third-party-advisoryx_refsource_SECUNIA
- http://support.avaya.com/elmodocs2/security/ASA-2007-474.htm x_refsource_CONFIRM
- http://www.debian.org/security/2008/dsa-1479 vendor-advisoryx_refsource_DEBIAN
- http://www.debian.org/security/2008/dsa-1505 vendor-advisoryx_refsource_DEBIAN
- http://www.novell.com/linux/security/advisories/2007_53_kernel.html vendor-advisoryx_refsource_SUSE
- http://www.redhat.com/support/errata/RHSA-2007-0939.html vendor-advisoryx_refsource_REDHAT
- http://www.redhat.com/support/errata/RHSA-2007-0993.html vendor-advisoryx_refsource_REDHAT
- http://www.securityfocus.com/bid/25807 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id?1018734 vdb-entryx_refsource_SECTRACK
- http://www.ubuntu.com/usn/usn-618-1 vendor-advisoryx_refsource_UBUNTU
- http://www.vupen.com/english/advisories/2007/3272 vdb-entryx_refsource_VUPEN
- https://access.redhat.com/security/cve/CVE-2007-4571 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=288961 Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/36780 vdb-entryx_refsource_XF
- https://issues.rpath.com/browse/RPL-1761 x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2007-4571
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9053 vdb-entrysignaturex_refsource_OVAL
- https://www.cve.org/CVERecord?id=CVE-2007-4571
- https://www.redhat.com/archives/fedora-package-announce/2007-October/msg00083.html vendor-advisoryx_refsource_FEDORA
- https://www.redhat.com/archives/fedora-package-announce/2007-September/msg00436.html vendor-advisoryx_refsource_FEDORA
Change history (0)
No recorded changes yet.