Memory corruption in Linux kernel - CVE-2009-4020
Published: December 4, 2009 / Updated: February 13, 2023
Vulnerability identifier: #VU92834
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2009-4020
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
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.
How to mitigate CVE-2009-4020
Install update from vendor's repository.
Sources
- https://bugzilla.redhat.com/show_bug.cgi?id=540736
- http://marc.info/?l=linux-mm-commits&m=125987755823047&w=2
- http://www.openwall.com/lists/oss-security/2009/12/04/1
- http://userweb.kernel.org/~akpm/mmotm/broken-out/hfs-fix-a-potential-buffer-overflow.patch
- https://rhn.redhat.com/errata/RHSA-2010-0046.html
- https://rhn.redhat.com/errata/RHSA-2010-0095.html
- http://support.avaya.com/css/P8/documents/100073666
- http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00005.html
- http://secunia.com/advisories/38276
- http://www.debian.org/security/2010/dsa-2005
- http://lists.opensuse.org/opensuse-security-announce/2010-03/msg00007.html
- http://www.novell.com/linux/security/advisories/2010_23_kernel.html
- http://secunia.com/advisories/39742
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6750
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10091