Double Free in Linux kernel



| Updated: 2020-08-11
Risk Medium
Patch available NO
Number of vulnerabilities 1
CVE-ID CVE-2011-1479
CWE-ID CWE-415
Exploitation vector Local
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
 Linux kernel
Operating systems & Components / Operating system

Vendor Linux Foundation

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Double Free

EUVDB-ID: #VU43954

Risk: Medium

CVSSv4.0: 5.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2011-1479

CWE-ID: CWE-415 - Double Free

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to an incorrect fix for CVE-2010-4250. The vulnerability allows a remote attacker local users to cause a denial of service (system crash) via vectors involving failed attempts to create files. NOTE: this vulnerability exists, trigger double free error and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Linux kernel: 2.6.38 - 2.6.38.7

CPE2.3 External links

https://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39
https://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=d0de4dc584ec6aa3b26fffea320a8457827768fc
https://www.openwall.com/lists/oss-security/2011/04/11/1
https://bugzilla.redhat.com/show_bug.cgi?id=691793
https://github.com/torvalds/linux/commit/d0de4dc584ec6aa3b26fffea320a8457827768fc


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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