CVE-2016-4805

moderate-risk
Published 2016-05-23

Use-after-free vulnerability in drivers/net/ppp/ppp_generic.c in the Linux kernel before 4.5.2 allows local users to cause a denial of service (memory corruption and system crash, or spinlock) or possibly have unspecified other impact by removing a network namespace, related to the ppp_register_net_channel and ppp_unregister_channel functions.

Do I need to act?

-
0.15% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.8/10 High
LOCAL / LOW complexity

Affected Products (20)

Opensuse Leap

Affected Vendors

Novell Redhat Oracle Linux Canonical

References (38)

Patch http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1f461d...
Mailing List http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html
Third Party Advisory http://www.debian.org/security/2016/dsa-3607
Mailing List http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.2
Mailing List http://www.openwall.com/lists/oss-security/2016/05/15/2
Third Party Advisory http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.h...
Third Party Advisory http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.htm...
Third Party Advisory http://www.securityfocus.com/bid/90605
Third Party Advisory http://www.securitytracker.com/id/1036763
Third Party Advisory http://www.ubuntu.com/usn/USN-3021-1
Third Party Advisory http://www.ubuntu.com/usn/USN-3021-2
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=1335803
Patch https://github.com/torvalds/linux/commit/1f461dcdd296eecedaffffc6bae2bfa90bd7eb8...
Patch http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1f461d...
and 18 more references
45
/ 100
moderate-risk
Severity 24/34 · High
Exploitability 1/34 · Minimal
Exposure 20/34 · Moderate