Incorrect default permissions in Linux kernel

1) Incorrect default permissions

EUVDB-ID: #VU94813

Risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2003-1040

CWE-ID: CWE-276 - Incorrect Default Permissions

Exploit availability: No

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: All versions

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:*:*:*:*:*:*:*:*

External links

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

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.