CVE-2009-0746 EXPLOIT
4.9
MEDIUM · CVSS 2.0 · EPSS 0.8% (pctl 54)
Patch early
A public exploit exists.
Description
The make_indexed_dir function in fs/ext4/namei.c in the Linux kernel 2.6.27 before 2.6.27.19 and 2.6.28 before 2.6.28.7 does not validate a certain rec_len field, which allows local users to cause a denial of service (OOPS) by attempting to mount a crafted ext4 filesystem.
Scoring
| CVSS | 4.9 (MEDIUM, v2.0) |
|---|---|
| Vector | AV:L/AC:L/Au:N/C:N/I:N/A:C |
| EPSS | 0.75% — more likely to be exploited than 54% of all CVEs |
| Weakness | CWE-20 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2009-02-27 |
| Last modified | 2026-06-16 |
Affected (1)
| Vendor | Product |
|---|---|
| linux | linux kernel |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Linux Kernel 2.6.x - 'make_indexed_dir()' Local Denial of Service | 2009-02-16 |
References
- http://bugzilla.kernel.org/show_bug.cgi?id=12430
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=e6b8bc09ba2075cd91fbffefcd2778b1a00bd76f
- http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.27.19
- http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.28.7
- http://osvdb.org/52202
- http://rhn.redhat.com/errata/RHSA-2009-1243.html
- http://secunia.com/advisories/34394
- http://secunia.com/advisories/36562
- http://secunia.com/advisories/37471
- http://www.debian.org/security/2009/dsa-1749
- http://www.securityfocus.com/archive/1/507985/100/0/threaded
- http://www.ubuntu.com/usn/usn-751-1
- http://www.vmware.com/security/advisories/VMSA-2009-0016.html
- http://www.vupen.com/english/advisories/2009/0509
- http://www.vupen.com/english/advisories/2009/3316
- https://exchange.xforce.ibmcloud.com/vulnerabilities/48872
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10342
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8039
- http://bugzilla.kernel.org/show_bug.cgi?id=12430
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=e6b8bc09ba2075cd91fbffefcd2778b1a00bd76f
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