Vulnerability identifier: #VU94813

Vulnerability risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2003-1040

CWE-ID: CWE-276

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

The vulnerability allows a local user to perform service disruption.

kmod in the Linux kernel does not set its uid, suid, gid, or sgid to 0, which allows local users to cause a denial of service (crash) by sending certain signals to kmod.

Mitigation
Install update from vendor's repository.

Vulnerable software versions

Linux kernel:

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External links
http:ftp://patches.sgi.com/support/free/security/advisories/20040204-01-U.asc
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000820
http://linux.bkbits.net:8080/linux-2.4/diffs/kernel/kmod.c@1.6?nav=index.html|src/|src/kernel|hist/kernel/kmod.c
http://www.novell.com/linux/security/advisories/2003_049_kernel.html
http://www.redhat.com/support/errata/RHSA-2004-065.html
http://www.redhat.com/support/errata/RHSA-2004-069.html
http://www.redhat.com/support/errata/RHSA-2004-106.html
http://www.redhat.com/support/errata/RHSA-2004-188.html
http://exchange.xforce.ibmcloud.com/vulnerabilities/15577
http://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9423

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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