CVE-2016-2053

Description

The asn1_ber_decoder function in lib/asn1_decoder.c in the Linux kernel before 4.3 allows attackers to cause a denial of service (panic) via an ASN.1 BER file that lacks a public key, leading to mishandling by the public_key_verify_signature function in crypto/asymmetric_keys/public_key.c.

Category

4.7
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.09%
Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory redhat.com Vendor Advisory opensuse.org Vendor Advisory redhat.com Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory kernel.org Vendor Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html mailing list third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00022.html mailing list third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00023.html mailing list third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00017.html mailing list third party advisory vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1300237 issue tracking third party advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00008.html mailing list third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00003.html mailing list third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00015.html mailing list third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html mailing list third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html mailing list third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00019.html mailing list third party advisory vendor advisory
http://www.openwall.com/lists/oss-security/2016/01/25/4 third party advisory mailing list
https://github.com/torvalds/linux/commit/0d62e9dd6da45bbf0f33a8617afc5fe774c8f45f patch vendor advisory
http://rhn.redhat.com/errata/RHSA-2016-2584.html third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00026.html mailing list third party advisory vendor advisory
http://rhn.redhat.com/errata/RHSA-2016-2574.html third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html mailing list third party advisory vendor advisory
http://www.securitytracker.com/id/1036763 vdb entry third party advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0d62e9dd6da45bbf0f33a8617afc5fe774c8f45f vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html mailing list third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00021.html mailing list third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00018.html mailing list third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00020.html mailing list third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00014.html mailing list third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00009.html mailing list third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html mailing list third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00016.html mailing list third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html mailing list third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2016-2053?
CVE-2016-2053 has been scored as a medium severity vulnerability.
How to fix CVE-2016-2053?
To fix CVE-2016-2053, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-2053 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2016-2053 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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