CVE-2009-1633
What it is
Multiple buffer overflows in the cifs subsystem in the Linux kernel before 2.6.29.4 allow remote CIFS servers to cause a denial of service (memory corruption) and possibly have unspecified other impact via (1) a malformed Unicode string, related to Unicode string area alignment in fs/cifs/sess.c; or (2) long Unicode characters, related to fs/cifs/cifssmb.c and the cifs_readdir function in fs/cifs/readdir.c.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of service disruption.
- Exploit odds
- 3.0% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 3.0% in the next 30 days (EPSS).
- Severity: 7.1 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 3.0% · EPSS, next 30 days
- Weakness
- CWE-119 · Buffer errors
- Record status
- Modified
Affected
- Linux Kernel < 2.6.29.4
- Debian Linux 4.0
- Debian Linux 5.0
- Canonical Ubuntu Linux 6.06
- Canonical Ubuntu Linux 8.04
- Canonical Ubuntu Linux 8.10
- Canonical Ubuntu Linux 9.04
Attack profile CVSS 2.0 · 7.1
- Attack vector
- Network
- Complexity
- Medium
- Authentication
- None
- Confidentiality
- None
- Integrity
- None
- Availability
- Complete
Raw vector
AV:N/AC:M/Au:N/C:N/I:N/A:C
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2009-1633.md and follow it. Check whether this project is affected by CVE-2009-1633. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.29.4
- http://www.openwall.com/lists/oss-security/2009/05/14/1
- http://www.openwall.com/lists/oss-security/2009/05/14/4
- http://www.openwall.com/lists/oss-security/2009/05/15/2
- https://bugzilla.redhat.com/show_bug.cgi?id=496572
- https://www.redhat.com/archives/fedora-package-announce/2009-May/msg01126.html
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.29.4
- http://www.openwall.com/lists/oss-security/2009/05/14/1
- http://www.openwall.com/lists/oss-security/2009/05/14/4
- http://www.openwall.com/lists/oss-security/2009/05/15/2
References
- http://git.kernel.org/?p=linux/kernel/git/sfrench/cifs-2.6.git%3Ba=commit%3Bh=7b0c8fcff47a885743125dd843db64af41af5a61
- http://git.kernel.org/?p=linux/kernel/git/sfrench/cifs-2.6.git%3Ba=commit%3Bh=968460ebd8006d55661dec0fb86712b40d71c413
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=27b87fe52baba0a55e9723030e76fce94fabcea4
- http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00005.html
- http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00007.html
- http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.html
- http://marc.info/?l=oss-security&m=124099284225229&w=2
- http://marc.info/?l=oss-security&m=124099371726547&w=2
- http://secunia.com/advisories/35217
- http://secunia.com/advisories/35226
- http://secunia.com/advisories/35298
- http://secunia.com/advisories/35656
- http://secunia.com/advisories/35847
- http://secunia.com/advisories/36051
- http://secunia.com/advisories/36327
- http://secunia.com/advisories/37351
- http://secunia.com/advisories/37471
- http://wiki.rpath.com/Advisories:rPSA-2009-0111
- http://www.debian.org/security/2009/dsa-1809
- http://www.debian.org/security/2009/dsa-1844
- http://www.debian.org/security/2009/dsa-1865
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.29.4
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:148
- http://www.openwall.com/lists/oss-security/2009/05/14/1
- http://www.openwall.com/lists/oss-security/2009/05/14/4