CVE-2007-4571: linux linux_kernel
Vulnerability summary
CVE-2007-4571 is a low (CVSS 2.1) vulnerability in linux linux_kernel. EPSS estimates a 0.76% chance of exploitation in the next 30 days, higher than 55.3% of scored vulnerabilities. 1 public exploit is recorded.
Weaponized exploit (exploit-database, 21-09-2007)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 3Timeline
- 26-09-2007PublishedVulnerability first disclosed.
- 07-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
0.76%
Chance of exploitation in the next 30 days
Percentile
55%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.76% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
1 foundLinux Kernel 2.6.x - ALSA snd-page-alloc Local Proc File Information Disclosure
Maturity: weaponized
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Known conditions: local access, no authentication (CVSS vector). Other conditions: not stated in public data.
Debian2 products
- alsa-driver< 1.0.8-7sarge1 | < 1.0.13-5etch1
- alsa-modules-i386< 1.0.8+2sarge2
Linux1 product
- linux_kernel≤ 2.6.22.7
2 vendors · 3 products
References
29 links- git.kernel.orgX Refsource CONFIRM
Show all 29 references
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9053VDB EntrySignatureX Refsource OVAL
- www.redhat.com/archives/fedora-package-announce/2007-September/msg00436.htmlVendor AdvisoryX Refsource FEDORA
- support.avaya.com/elmodocs2/security/ASA-2007-474.htmX Refsource CONFIRM
- kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.22.8X Refsource CONFIRM
- issues.rpath.com/browse/RPL-1761X Refsource CONFIRM
- labs.idefense.com/intelligence/vulnerabilities/display.php?id=600Third Party AdvisoryX Refsource IDEFENSE
- www.redhat.com/archives/fedora-package-announce/2007-October/msg00083.htmlVendor AdvisoryX Refsource FEDORA