Unchecked return value in Linux kernel

1) Unchecked return value

EUVDB-ID: #VU94806

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-2005-2553

CWE-ID: CWE-252 - Unchecked Return Value

Exploit availability: No

Description

The vulnerability allows a local user to perform service disruption.

The find_target function in ptrace32.c in the Linux kernel 2.4.x before 2.4.29 does not properly handle a NULL return value from another function, which allows local users to cause a denial of service (kernel crash/oops) by running a 32-bit ltrace program with the -i option on a 64-bit executable program.

Mitigation

Install update from vendor's repository.

Vulnerable software versions

Linux kernel: All versions

External links

http://lkml.org/lkml/2005/1/5/245
http://www.securityfocus.com/bid/14965
http://www.debian.org/security/2005/dsa-921
http://secunia.com/advisories/18059
http://wwwnew.mandriva.com/security/advisories?name=MDKSA-2006:044
http://secunia.com/advisories/18977
http://lists.suse.de/archive/suse-security-announce/2006-Feb/0010.html
http://secunia.com/advisories/19038
http://www.redhat.com/support/errata/RHSA-2005-663.html
http://secunia.com/advisories/17002
http://www.vupen.com/english/advisories/2005/1878
http://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9647
http://www.securityfocus.com/archive/1/428058/100/0/threaded
http://linux.bkbits.net:8080/linux-2.4/cset%4041dd3455GwQPufrGvBJjcUOXQa3WXA

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.