#VU95485 Integer overflow in Linux kernel - CVE-2003-0961


| Updated: 2024-08-07

Vulnerability identifier: #VU95485

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-2003-0961

CWE-ID: CWE-190

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.

Integer overflow in the do_brk function for the brk system call in Linux kernel 2.4.22 and earlier allows local users to gain root privileges.

Mitigation
Install update from vendor's repository.

Vulnerable software versions

Linux kernel: All versions


External links
https://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000796
https://isec.pl/papers/linux_kernel_do_brk.pdf
https://marc.info/?l=bugtraq&m=107064798706473&w=2
https://marc.info/?l=bugtraq&m=107064830206816&w=2
https://marc.info/?l=bugtraq&m=107394143105081&w=2
https://secunia.com/advisories/10328
https://secunia.com/advisories/10329
https://secunia.com/advisories/10330
https://secunia.com/advisories/10333
https://secunia.com/advisories/10338
https://www.debian.org/security/2003/dsa-403
https://www.debian.org/security/2004/dsa-417
https://www.debian.org/security/2004/dsa-423
https://www.debian.org/security/2004/dsa-433
https://www.debian.org/security/2004/dsa-439
https://www.debian.org/security/2004/dsa-440
https://www.debian.org/security/2004/dsa-442
https://www.debian.org/security/2004/dsa-450
https://www.debian.org/security/2004/dsa-470
https://www.debian.org/security/2004/dsa-475
https://www.kb.cert.org/vuls/id/301156
https://www.mandriva.com/security/advisories?name=MDKSA-2003:110
https://www.novell.com/linux/security/advisories/2003_049_kernel.html
https://www.redhat.com/support/errata/RHSA-2003-368.html
https://www.redhat.com/support/errata/RHSA-2003-389.html


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.


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