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CVE-2016-4805

25
FAUCET Score

CVE-2016-4805 is a use-after-free vulnerability in the Linux kernel (before version 4.5.2), specifically within the ppp_generic.c driver, affecting products from vendors like Canonical, Oracle, and Red Hat. This flaw allows a local attacker to trigger a denial of service through memory corruption or a system crash, or potentially achieve other unspecified impacts, by manipulating network namespaces. With a CVSS score of 7.8 (High), it has a low attack complexity and requires local privileges, but can lead to high confidentiality, integrity, and availability impacts. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
12.0CPE matchmatch criteria
cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:-:*:*:*:*:*:*
12.0CPE matchmatch criteria
cpe:2.3:a:novell:suse_linux_enterprise_workstation_extension:12.0:-:*:*:*:*:*:*
12.0CPE matchmatch criteria
cpe:2.3:a:novell:suse_linux_enterprise_module_for_public_cloud:12.0:-:*:*:*:*:*:*
11.0CPE matchmatch criteria
cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:sp4:*:*:*:*:*:*
42.1CPE matchmatch criteria
cpe:2.3:o:novell:opensuse_leap:42.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.48%
Probability of exploitation in next 30 days
EPSS Percentile
38.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0048 is in the 79th percentile among its peer group of 17,070 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

github_advisorypatch availablevia nvd_reference
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: kernel
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-rt
redhatend of lifevia redhat_api
Product: Red Hat Enterprise MRG 2Fixed in: realtime-kernel

Vendor Advisories (1)

redhatCVE-2016-4805Low

kernel: Use after free vulnerability in ppp_unregister_channel

Mar 16, 2016

References

git.kernel.org / cgit/linux/kernel/git/torvalds/linux.git/commit
PatchVendor 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 ListRelease NotesThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-06/msg00054.html
Mailing ListRelease NotesThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-08/msg00000.html
Mailing ListRelease NotesThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-08/msg00007.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
bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
github.com / torvalds/linux/commit/1f461dcdd296eecedaffffc6bae2bfa90bd7eb89
PatchThird Party Advisory
debian.org / security/2016/dsa-3607
Third Party Advisory
kernel.org / pub/linux/kernel/v4.x/ChangeLog-4.5.2
Mailing ListVendor Advisory
openwall.com / lists/oss-security/2016/05/15/2
Mailing ListPatchThird Party Advisory
oracle.com / technetwork/topics/security/linuxbulletinjul2016-3090544.html
Third Party Advisory
oracle.com / technetwork/topics/security/ovmbulletinoct2016-3090547.html
Third Party Advisory
securityfocus.com / bid/90605
Third Party AdvisoryVDB Entry
securitytracker.com / id/1036763
Third Party AdvisoryVDB Entry
ubuntu.com / usn/USN-3021-1
Third Party Advisory
ubuntu.com / usn/USN-3021-2
Third Party Advisory