#VU99782 Memory corruption in Linux kernel - CVE-2005-1263

Vulnerability identifier: #VU99782

Vulnerability risk: Low

CVSSv4.0: 7.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2005-1263

CWE-ID: CWE-119

Exploitation vector: Local

Exploit availability: Yes

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

Vendor: Linux Foundation

Description

The vulnerability allows a local user to execute arbitrary code.

The elf_core_dump function in binfmt_elf.c for Linux kernel 2.x.x to 2.2.27-rc2, 2.4.x to 2.4.31-pre1, and 2.6.x to 2.6.12-rc4 allows local users to execute arbitrary code via an ELF binary that, in certain conditions involving the create_elf_tables function, causes a negative length argument to pass a signed integer comparison, leading to a buffer overflow.

Mitigation
Install update from vendor's repository.

Vulnerable software versions

Linux kernel: All versions

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External links
https:ftp://patches.sgi.com/support/free/security/advisories/20060402-01-U
https://secunia.com/advisories/19185
https://secunia.com/advisories/19607
https://www.isec.pl/vulnerabilities/isec-0023-coredump.txt
https://www.redhat.com/support/errata/RHSA-2005-472.html
https://www.redhat.com/support/errata/RHSA-2005-529.html
https://www.redhat.com/support/errata/RHSA-2005-551.html
https://www.securityfocus.com/archive/1/397966
https://www.securityfocus.com/archive/1/427980/100/0/threaded
https://www.securityfocus.com/archive/1/428028/100/0/threaded
https://www.securityfocus.com/archive/1/428058/100/0/threaded
https://www.securityfocus.com/bid/13589
https://www.vupen.com/english/advisories/2005/0524
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10909
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1122

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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. However, proof of concept for this vulnerability is available.