Vulnerability identifier: #VU91078
Vulnerability risk: Low
CVSSv3.1: 7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-416
Exploitation vector: Local
Exploit availability: Yes
Vulnerable software:
Linux kernel
Operating systems & Components /
Operating system
Vendor:
Description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the fasync_helper() function in fs/fcntl.c. A local user can execute arbitrary code with elevated privileges.
Mitigation
Install update from vendor's website.
Vulnerable software versions
External links
http://lock.cmpxchg8b.com/5ebe2294ecd0e0f08eab7690d2a6ee69/create_elf_tables.c
http://www.securityfocus.com/bid/37806
http://twitter.com/taviso/statuses/7744108017
http://secunia.com/advisories/38199
http://www.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.33-rc4-git1.bz2
http://archives.neohapsis.com/archives/fulldisclosure/2010-01/0252.html
http://bugzilla.redhat.com/show_bug.cgi?id=547906
http://rhn.redhat.com/errata/RHSA-2010-0046.html
http://rhn.redhat.com/errata/RHSA-2010-0095.html
http://support.avaya.com/css/P8/documents/100073666
http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00002.html
http://www.redhat.com/support/errata/RHSA-2010-0161.html
http://secunia.com/advisories/39033
http://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9201
http://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7054
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=53281b6d34d44308372d16acb7fb5327609f68b6
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.