CVE-2009-1633

kernel: cifs: fix potential buffer overruns when converting unicode strings sent by server

Severity Score

7.1

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Múltiples desbordamientos de búfer en el subsistema cifs en el kernel de Linux anterior a v2.6.29.4 permite a servidores remotos CIFS provocar una denegación de servicio (corrupción de memoria) y posiblemente tener otros impactos sin identificar a través de (1) una cadena Unicode mal formada, relacionado con el área de alineación de cadena Unicode en fs/cifs/sess.c; o (2) carateres largos _Unicode, relacionado con fs/cifs/cifssmb.c y la función cifs_readdir en fs/cifs/readdir.c.

*Credits: N/A

CVSS Scores

NISTv2 7.1

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2009-05-14 CVE Reserved
2009-05-28 CVE Published
2023-11-26 EPSS Updated
2024-08-07 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

CAPEC

References (39)

URL	Tag	Source
http://git.kernel.org/?p=linux/kernel/git/sfrench/cifs-2.6.git%3Ba=commit%3Bh=7b0c8fcff47a885743125dd843db64af41af5a61	X_refsource_confirm
http://git.kernel.org/?p=linux/kernel/git/sfrench/cifs-2.6.git%3Ba=commit%3Bh=968460ebd8006d55661dec0fb86712b40d71c413	X_refsource_confirm
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=27b87fe52baba0a55e9723030e76fce94fabcea4	X_refsource_confirm
http://marc.info/?l=oss-security&m=124099284225229&w=2	Mailing List
http://marc.info/?l=oss-security&m=124099371726547&w=2	Mailing List
http://secunia.com/advisories/35217	Third Party Advisory
http://secunia.com/advisories/35226	Third Party Advisory
http://secunia.com/advisories/35298	Third Party Advisory
http://secunia.com/advisories/35656	Third Party Advisory
http://secunia.com/advisories/35847	Third Party Advisory
http://secunia.com/advisories/36051	Third Party Advisory
http://secunia.com/advisories/36327	Third Party Advisory
http://secunia.com/advisories/37351	Third Party Advisory
http://secunia.com/advisories/37471	Third Party Advisory
http://wiki.rpath.com/Advisories:rPSA-2009-0111	Broken Link
http://www.securityfocus.com/archive/1/505254/100/0/threaded	Mailing List
http://www.securityfocus.com/archive/1/507985/100/0/threaded	Mailing List
http://www.securityfocus.com/bid/34612	Third Party Advisory
http://www.vmware.com/security/advisories/VMSA-2009-0016.html	Third Party Advisory
http://www.vupen.com/english/advisories/2009/3316	Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8588	Signature
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9525	Signature

URL	Date	SRC

URL	Date	SRC
http://www.openwall.com/lists/oss-security/2009/05/14/1	2023-11-07
http://www.openwall.com/lists/oss-security/2009/05/14/4	2023-11-07
http://www.openwall.com/lists/oss-security/2009/05/15/2	2023-11-07
https://bugzilla.redhat.com/show_bug.cgi?id=496572	2009-08-13
https://www.redhat.com/archives/fedora-package-announce/2009-May/msg01126.html	2023-11-07

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00005.html	2023-11-07
http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00007.html	2023-11-07
http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.html	2023-11-07
http://www.debian.org/security/2009/dsa-1809	2023-11-07
http://www.debian.org/security/2009/dsa-1844	2023-11-07
http://www.debian.org/security/2009/dsa-1865	2023-11-07
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.29.4	2023-11-07
http://www.mandriva.com/security/advisories?name=MDVSA-2009:148	2023-11-07
http://www.redhat.com/support/errata/RHSA-2009-1157.html	2023-11-07
http://www.ubuntu.com/usn/usn-793-1	2023-11-07
https://www.redhat.com/archives/fedora-package-announce/2009-May/msg01271.html	2023-11-07
https://access.redhat.com/security/cve/CVE-2009-1633	2009-08-13

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 2.6.29.4 Search vendor "Linux" for product "Linux Kernel" and version " < 2.6.29.4"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				4.0 Search vendor "Debian" for product "Debian Linux" and version "4.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				5.0 Search vendor "Debian" for product "Debian Linux" and version "5.0"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				6.06 Search vendor "Canonical" for product "Ubuntu Linux" and version "6.06"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				8.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "8.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				8.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "8.10"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				9.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "9.04"		-		Affected