Improper input validation in Linux kernel



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2004-0949
CWE-ID CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Linux kernel
Operating systems & Components / Operating system

Vendor Linux Foundation

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Improper input validation

EUVDB-ID: #VU95649

Risk: Low

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2004-0949

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

The smb_recv_trans2 function call in the samba filesystem (smbfs) in Linux kernel 2.4 and 2.6 does not properly handle the re-assembly of fragmented packets correctly, which could allow remote samba servers to (1) read arbitrary kernel information or (2) raise a counter value to an arbitrary number by sending the first part of the fragmented packet multiple times.

Mitigation

Install update from vendor's repository.

Vulnerable software versions

Linux kernel: All versions

CPE2.3 External links

https://marc.info/?l=bugtraq&m=110072140811965&w=2
https://secunia.com/advisories/13232/
https://secunia.com/advisories/20162
https://secunia.com/advisories/20163
https://secunia.com/advisories/20202
https://secunia.com/advisories/20338
https://security.e-matters.de/advisories/142004.html
https://www.debian.org/security/2006/dsa-1067
https://www.debian.org/security/2006/dsa-1069
https://www.debian.org/security/2006/dsa-1070
https://www.debian.org/security/2006/dsa-1082
https://www.mandriva.com/security/advisories?name=MDKSA-2005:022
https://www.redhat.com/support/errata/RHSA-2004-504.html
https://www.redhat.com/support/errata/RHSA-2004-505.html
https://www.redhat.com/support/errata/RHSA-2004-537.html
https://www.securityfocus.com/bid/11695
https://www.trustix.org/errata/2004/0061/
https://bugzilla.fedora.us/show_bug.cgi?id=2336
https://exchange.xforce.ibmcloud.com/vulnerabilities/18137
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10360
https://www.ubuntu.com/usn/usn-30-1/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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