#VU92877 Null pointer dereference in Linux kernel - CVE-2005-2459
Vulnerability identifier: #VU92877
Vulnerability risk: Low
CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID:
CWE-ID:
CWE-476
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Linux kernel
Operating systems & Components /
Operating system
Vendor: Linux Foundation
Description
The vulnerability allows a remote non-authenticated attacker to perform service disruption.
The huft_build function in inflate.c in the zlib routines in the Linux kernel before 2.6.12.5 returns the wrong value, which allows remote attackers to cause a denial of service (kernel crash) via a certain compressed file that leads to a null pointer dereference, a different vulnerability than CVE-2005-2458.
Mitigation
Install update from vendor's repository.
Vulnerable software versions
Linux kernel: All versions
External links
https://bugs.gentoo.org/show_bug.cgi?id=94584
https://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.12.5
https://secunia.com/advisories/16355/
https://secunia.com/advisories/16500
https://secunia.com/advisories/17826
https://secunia.com/advisories/17918
https://secunia.com/advisories/18056
https://secunia.com/advisories/18059
https://www.debian.org/security/2005/dsa-921
https://www.debian.org/security/2005/dsa-922
https://www.mandriva.com/security/advisories?name=MDKSA-2005:219
https://www.mandriva.com/security/advisories?name=MDKSA-2005:220
https://www.novell.com/linux/security/advisories/2005_50_kernel.html
https://www.securityfocus.com/archive/1/419522/100/0/threaded
https://www.securityfocus.com/bid/14720
https://usn.ubuntu.com/169-1/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
