CVE-2019-18198

2019-10-1700:00:00

ubuntu.com

7.2 High

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.0004 Low

EPSS

Percentile

5.1%

JSON

In the Linux kernel before 5.3.4, a reference count usage error in the
fib6_rule_suppress() function in the fib6 suppression feature of
net/ipv6/fib6_rules.c, when handling the FIB_LOOKUP_NOREF flag, can be
exploited by a local attacker to corrupt memory, aka CID-ca7a03c41753.

Bugs

<https://launchpad.net/bugs/1847478>

Notes

Author	Note
sbeattie	affects 5.3 kernels only

OSVersionArchitecturePackageVersionFilename
ubuntu19.10noarchlinux< 5.3.0-19.20UNKNOWN
ubuntu19.10noarchlinux-aws< 5.3.0-1004.4UNKNOWN
ubuntu19.10noarchlinux-azure< 5.3.0-1004.4UNKNOWN
ubuntu19.10noarchlinux-gcp< 5.3.0-1005.5UNKNOWN
ubuntu19.10noarchlinux-kvm< 5.3.0-1004.4UNKNOWN
ubuntu19.10noarchlinux-oracle< 5.3.0-1003.3UNKNOWN
ubuntu19.10noarchlinux-raspi2< 5.3.0-1008.9UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	19.10	noarch	linux	< 5.3.0-19.20	UNKNOWN
ubuntu	19.10	noarch	linux-aws	< 5.3.0-1004.4	UNKNOWN
ubuntu	19.10	noarch	linux-azure	< 5.3.0-1004.4	UNKNOWN
ubuntu	19.10	noarch	linux-gcp	< 5.3.0-1005.5	UNKNOWN
ubuntu	19.10	noarch	linux-kvm	< 5.3.0-1004.4	UNKNOWN
ubuntu	19.10	noarch	linux-oracle	< 5.3.0-1003.3	UNKNOWN
ubuntu	19.10	noarch	linux-raspi2	< 5.3.0-1008.9	UNKNOWN