CVE-2015-1338 - Improper Link Resolution Before File Access ('Link Following')

Severity

72%

Complexity

39%

Confidentiality

165%

kernel_crashdump in Apport before 2.19 allows local users to cause a denial of service (disk consumption) or possibly gain privileges via a (1) symlink or (2) hard link attack on /var/crash/vmcore.log.

kernel_crashdump in Apport before 2.19 allows local users to cause a denial of service (disk consumption) or possibly gain privileges via a (1) symlink or (2) hard link attack on /var/crash/vmcore.log.

CVSS 2.0 Base Score 7.2. CVSS Attack Vector: local. CVSS Attack Complexity: low. CVSS Vector: (AV:L/AC:L/Au:N/C:C/I:C/A:C).

Overview

First reported 9 years ago

2015-10-01 20:59:00

Last updated 9 years ago

2015-10-02 20:48:00

Affected Software

Apport Project Apport

Canonical Ubuntu Linux 12.04 LTS

12.04

Canonical Ubuntu Linux 14.04 LTS (Long-Term Support)

14.04

Canonical Ubuntu Linux 15.04

15.04

References

http://packetstormsecurity.com/files/133723/Ubuntu-Apport-kernel_crashdump-Symlink.html

Exploit

20150927 Apport kernel_crashdump symlink vulnerability exploitation

http://www.halfdog.net/Security/2015/ApportKernelCrashdumpFileAccessVulnerabilities/

Exploit

USN-2744-1

https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1492570

https://launchpad.net/apport/trunk/2.19

Patch

38353

Exploit

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