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CVE-2016-2053

14
FAUCET Score

CVE-2016-2053 describes a denial-of-service vulnerability in the Linux kernel, specifically affecting versions before 4.3. An attacker can trigger a kernel panic by providing a malformed ASN.1 BER file that lacks a public key, which is then mishandled during signature verification. This is a medium-severity vulnerability with a CVSS score of 4.7, requiring local access and high attack complexity to achieve a high impact of availability loss. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.3CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

4.7MEDIUM

CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.0
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.47%
Probability of exploitation in next 30 days
EPSS Percentile
38.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0047 is in the 85th percentile among its peer group of 1,297 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.4 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-rt-0:3.10.0-514.rt56.420.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-0:3.10.0-514.el7
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise MRG 2Fixed in: realtime-kernel

Vendor Advisories (1)

redhatCVE-2016-2053Moderate

kernel: Kernel panic and system lockup by triggering BUG_ON() in public_key_verify_signature()

Jan 25, 2016

References

git.kernel.org / cgit/linux/kernel/git/torvalds/linux.git/commit
Vendor Advisory
lists.opensuse.org / opensuse-security-announce/2016-06/msg00044.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-06/msg00052.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-06/msg00054.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-08/msg00000.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-08/msg00003.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-08/msg00007.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-08/msg00008.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-08/msg00009.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-08/msg00014.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-08/msg00015.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-08/msg00016.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-08/msg00017.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-08/msg00018.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-08/msg00019.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-08/msg00020.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-08/msg00021.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-08/msg00022.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-08/msg00023.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-08/msg00026.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-08/msg00044.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-08/msg00055.html
Mailing ListThird Party Advisory
rhn.redhat.com / errata/RHSA-2016-2574.html
Third Party Advisory
rhn.redhat.com / errata/RHSA-2016-2584.html
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
github.com / torvalds/linux/commit/0d62e9dd6da45bbf0f33a8617afc5fe774c8f45f
PatchVendor Advisory
openwall.com / lists/oss-security/2016/01/25/4
Mailing ListThird Party Advisory
securitytracker.com / id/1036763
Third Party AdvisoryVDB Entry