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CVE-2012-4508

14
FAUCET Score

CVE-2012-4508 describes a race condition in the Linux kernel's ext4 filesystem (specifically fs/ext4/extents.c) before version 3.4.16. This vulnerability allows a local attacker to potentially read sensitive information from a recently deleted file. The CVSS score of 1.9 indicates low severity, requiring local access and medium attack complexity to achieve a partial confidentiality impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.4.15CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.0:rc1:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.0:rc2:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.0:rc3:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.0:rc4:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

1.9LOW

AV:L/AC:M/Au:N/C:P/I:N/A:N

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
3.4
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.29%
Probability of exploitation in next 30 days
EPSS Percentile
20.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0029 is in the 16th percentile among its peer group of 747 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (6)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: kernel-0:2.6.18-308.24.1.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: kernel-0:2.6.32-358.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6.2 EUS - Server and Compute Node OnlyFixed in: kernel-0:2.6.32-220.45.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6.3 EUS - Server and Compute Node OnlyFixed in: kernel-0:2.6.32-279.39.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise MRG 2Fixed in: kernel-rt-0:3.2.33-rt50.66.el6rt
View patch

Vendor Advisories (1)

redhatCVE-2012-4508Important

kernel: ext4: AIO vs fallocate stale data exposure

Oct 23, 2012

References

git.kernel.org
lists.fedoraproject.org / pipermail/package-announce/2012-November/091110.html
rhn.redhat.com / errata/RHSA-2012-1540.html
rhn.redhat.com / errata/RHSA-2013-0496.html
rhn.redhat.com / errata/RHSA-2013-1519.html
rhn.redhat.com / errata/RHSA-2013-1783.html
bugzilla.redhat.com / show_bug.cgi
github.com / torvalds/linux/commit/dee1f973ca341c266229faa5a1a5bb268bed3531
Patch
suse.com / support/update/announcement/2012/suse-su-20121679-1.html
kernel.org / pub/linux/kernel/v3.x/ChangeLog-3.4.16
openwall.com / lists/oss-security/2012/10/25/1
ubuntu.com / usn/USN-1645-1
ubuntu.com / usn/USN-1899-1
ubuntu.com / usn/USN-1900-1