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CVE-2008-4302

25
FAUCET Score

CVE-2008-4302 describes a denial-of-service vulnerability in the Linux kernel's splice subsystem (fs/splice.c) affecting versions before 2.6.22.2, including various Debian and Red Hat distributions. The flaw occurs when the add_to_page_cache_lru function fails, leading to an attempt to unlock an already unlocked page, which results in a kernel BUG and system crash. This is a medium-severity vulnerability (CVSS 5.5) with a local attack vector, low attack complexity, and high impact on availability. While there is no evidence of active exploitation, a proof-of-concept exploit is available on ExploitDB, and there is minimal community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.6.22.2CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
4.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:4.0:*:*:*:*:*:*:*
5.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:5.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.62%
Probability of exploitation in next 30 days
EPSS Percentile
45.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-32384 · Jul 20, 2007
This CVE's current EPSS score of 0.0062 is in the 94th percentile among its peer group of 15,938 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

redhatpatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: kernel-0:2.6.18-92.1.18.el5
View patch

Vendor Advisories (1)

redhatCVE-2008-4302Important

kernel: splice: fix bad unlock_page() in error case

Jul 20, 2007

References

git.kernel.org
Broken Link
kernel.org / pub/linux/kernel/v2.6/ChangeLog-2.6.22.2
Broken Link
lists.opensuse.org / opensuse-security-announce/2008-11/msg00001.html
Mailing ListThird Party Advisory
lkml.org / lkml/2007/7/20/168
ExploitMailing ListThird Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingPatchThird Party Advisory
secunia.com / advisories/32237
Broken Link
secunia.com / advisories/32485
Broken Link
secunia.com / advisories/32759
Broken Link
exchange.xforce.ibmcloud.com / vulnerabilities/45191
Third Party AdvisoryVDB Entry
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10547
Broken Link
debian.org / security/2008/dsa-1653
Third Party Advisory
juniper.net / security/auto/vulnerabilities/vuln31201.html
Broken Link
openwall.com / lists/oss-security/2008/09/16/10
Mailing ListThird Party Advisory
redhat.com / support/errata/RHSA-2008-0957.html
Broken Link
securityfocus.com / bid/31201
Broken LinkThird Party AdvisoryVDB Entry