CVE-2008-4302

Public Exploit

Description

fs/splice.c in the splice subsystem in the Linux kernel before 2.6.22.2 does not properly handle a failure of the add_to_page_cache_lru function, and subsequently attempts to unlock a page that was not locked, which allows local users to cause a denial of service (kernel BUG and system crash), as demonstrated by the fio I/O tool.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.15%
Vendor Advisory redhat.com Vendor Advisory debian.org Vendor Advisory opensuse.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.openwall.com/lists/oss-security/2008/09/16/10 third party advisory mailing list
http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.26.y.git%3Ba=commit%3Bh=6a860c979b35469e4d77da781a96bdb2ca05ae64 broken link
http://secunia.com/advisories/32485 third party advisory broken link
http://secunia.com/advisories/32237 third party advisory broken link
http://www.redhat.com/support/errata/RHSA-2008-0957.html vendor advisory broken link
https://exchange.xforce.ibmcloud.com/vulnerabilities/45191 vdb entry third party advisory
http://www.debian.org/security/2008/dsa-1653 third party advisory vendor advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10547 vdb entry signature broken link
https://bugzilla.redhat.com/show_bug.cgi?id=462434 issue tracking third party advisory patch
http://secunia.com/advisories/32759 third party advisory broken link
http://lkml.org/lkml/2007/7/20/168 mailing list exploit third party advisory
http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.22.2 broken link
http://lists.opensuse.org/opensuse-security-announce/2008-11/msg00001.html mailing list third party advisory vendor advisory
http://www.securityfocus.com/bid/31201 vdb entry third party advisory broken link
http://www.juniper.net/security/auto/vulnerabilities/vuln31201.html broken link

Frequently Asked Questions

What is the severity of CVE-2008-4302?
CVE-2008-4302 has been scored as a medium severity vulnerability.
How to fix CVE-2008-4302?
To fix CVE-2008-4302, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2008-4302 being actively exploited in the wild?
It is possible that CVE-2008-4302 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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