Improper input validation in Linux kernel

1) Improper input validation

EUVDB-ID: #VU95651

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2004-0138

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The ELF loader in Linux kernel 2.4 before 2.4.25 allows local users to cause a denial of service (crash) via a crafted ELF file with an interpreter with an invalid arch (architecture), which triggers a BUG() when an invalid VMA is unmapped.

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://kernel.debian.net/debian/pool/main/kernel-source-2.4.17/kernel-source-2.4.17_2.4.17-1woody4_ia64.changes
https://kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.25
https://linux.bkbits.net:8080/linux-2.4/cset@4021346f79nBb-4X_usRikR3Iyb4Vg
https://secunia.com/advisories/20162
https://secunia.com/advisories/20163
https://secunia.com/advisories/20202
https://secunia.com/advisories/20338
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.redhat.com/support/errata/RHSA-2004-504.html
https://www.redhat.com/support/errata/RHSA-2004-549.html
https://www.securityfocus.com/bid/18174
https://exchange.xforce.ibmcloud.com/vulnerabilities/43124
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10123

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.