Denial of service in Linux kernel

1) Use-after-free

EUVDB-ID: #VU91079

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-2008-3077

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to a use-after-free error in arch/x86/kernel/ptrace.c. A local user can crash the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: before

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:*:*:*:*:*:*:*:*

External links

https://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.25.y.git;a=commitdiff;h=1e9a615bfce7996ea4d815d45d364b47ac6a74e8
https://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.25.10
https://secunia.com/advisories/31048
https://www.openwall.com/lists/oss-security/2008/07/03/2
https://www.securityfocus.com/bid/30077
https://www.vupen.com/english/advisories/2008/2063/references

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.