CVE-2009-4020

Description

Stack-based buffer overflow in the hfs subsystem in the Linux kernel 2.6.32 allows remote attackers to have an unspecified impact via a crafted Hierarchical File System (HFS) filesystem, related to the hfs_readdir function in fs/hfs/dir.c.

Category

7.8
CVSS
Severity: High
CVSS 2.0 •
EPSS 3.86% Top 15%
Vendor Advisory opensuse.org Vendor Advisory novell.com Vendor Advisory redhat.com Vendor Advisory opensuse.org Vendor Advisory redhat.com Vendor Advisory debian.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://marc.info/?l=linux-mm-commits&m=125987755823047&w=2 mailing list
http://secunia.com/advisories/38276 third party advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10091 vdb entry signature
http://support.avaya.com/css/P8/documents/100073666
http://www.openwall.com/lists/oss-security/2009/12/04/1 mailing list
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6750 vdb entry signature
https://bugzilla.redhat.com/show_bug.cgi?id=540736
http://userweb.kernel.org/~akpm/mmotm/broken-out/hfs-fix-a-potential-buffer-overflow.patch patch
http://lists.opensuse.org/opensuse-security-announce/2010-03/msg00007.html vendor advisory
http://www.novell.com/linux/security/advisories/2010_23_kernel.html vendor advisory
https://rhn.redhat.com/errata/RHSA-2010-0095.html vendor advisory
http://secunia.com/advisories/39742 third party advisory
http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00005.html vendor advisory
https://rhn.redhat.com/errata/RHSA-2010-0046.html vendor advisory
http://www.debian.org/security/2010/dsa-2005 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2009-4020?
CVE-2009-4020 has been scored as a high severity vulnerability.
How to fix CVE-2009-4020?
To fix CVE-2009-4020, 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-2009-4020 being actively exploited in the wild?
It is possible that CVE-2009-4020 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~4% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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