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archlinuxArchLinuxASA-201612-11
HistoryDec 10, 2016 - 12:00 a.m.

[ASA-201612-11] linux-grsec: denial of service

2016-12-1000:00:00
security.archlinux.org
524

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

7.8 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

0.005 Low

EPSS

Percentile

75.8%

JSON

Arch Linux Security Advisory ASA-201612-11

Severity: High
Date : 2016-12-10
CVE-ID : CVE-2016-9919
Package : linux-grsec
Type : denial of service
Remote : Yes
Link : https://wiki.archlinux.org/index.php/CVE

Summary

The package linux-grsec before version 1:4.8.12.r201612062306-2 is
vulnerable to denial of service.

Resolution

Upgrade to 1:4.8.12.r201612062306-2.

pacman -Syu “linux-grsec>=1:4.8.12.r201612062306-2”

The problem has been fixed upstream but no release is available yet.

Workaround

None.

Description

The icmp6_send function in net/ipv6/icmp.c in the Linux kernel through
4.8.12 omits a certain check of the dst data structure, which allows
remote attackers to cause a denial of service (panic) via a fragmented
IPv6 packet.

Impact

A remote attacker can cause a kernel panic by sending a fragmented IPv6
packet.

References

https://bugzilla.kernel.org/show_bug.cgi?id=189851
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=79dc7e3f1cd323be4c81aa1a94faa1b3ed987fb2
https://access.redhat.com/security/cve/CVE-2016-9919

OSVersionArchitecturePackageVersionFilename
ArchLinuxanyanylinux-grsec< 1:4.8.12.r201612062306-2UNKNOWN

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7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

7.8 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

0.005 Low

EPSS

Percentile

75.8%

JSON
Related for ASA-201612-11
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