Linux kernel CVE-2019-7221 Local Denial of Service Vulnerability

Bugtraq ID:	107294
Class:	Failure to Handle Exceptional Conditions
CVE:	CVE-2019-7221
Remote:	No
Local:	Yes
Published:	Feb 07 2019 12:00AM
Updated:	Apr 19 2019 11:00AM
Credit:	Felix Wilhelm (Google)
Vulnerable:	Redhat Enterprise Linux 7 Oracle Linux 7 Linux kernel 4.19.19 Linux kernel 4.19.13 Linux kernel 4.19.6 Linux kernel 4.19.3 Linux kernel 4.19.2 Linux kernel 4.18.16 Linux kernel 4.18.12 Linux kernel 4.18.11 Linux kernel 4.18.9 Linux kernel 4.18.6 Linux kernel 4.18.5 Linux kernel 4.17.7 Linux kernel 4.17.3 Linux kernel 4.17.2 Linux kernel 4.17.1 Linux kernel 4.16.11 Linux kernel 4.16.9 Linux kernel 4.16.6 Linux kernel 4.16.3 Linux kernel 4.15.14 Linux kernel 4.15.11 Linux kernel 4.15.9 Linux kernel 4.15.4 Linux kernel 4.14.78 Linux kernel 4.14.71 Linux kernel 4.14.67 Linux kernel 4.14.31 Linux kernel 4.14.13 Linux kernel 4.14.11 Linux kernel 4.14.10 Linux kernel 4.14.6 Linux kernel 4.14.5 Linux kernel 4.14.1 Linux kernel 4.13.11 Linux kernel 4.13.10 Linux kernel 4.13.9 Linux kernel 4.13.8 Linux kernel 4.13.7 Linux kernel 4.13.6 Linux kernel 4.13.4 Linux kernel 4.13.3 Linux kernel 4.12.9 Linux kernel 4.12.4 Linux kernel 4.12.3 Linux kernel 4.12.2 Linux kernel 4.11.9 Linux kernel 4.11.5 Linux kernel 4.11.4 Linux kernel 4.11.3 Linux kernel 4.11.2 Linux kernel 4.11.1 Linux kernel 4.11 Linux kernel 4.10.15 Linux kernel 4.10.13 Linux kernel 4.10.12 Linux kernel 4.10.10 Linux kernel 4.10.6 Linux kernel 4.10.4 Linux kernel 4.10 Linux kernel 4.9.135 Linux kernel 4.9.128 Linux kernel 4.9.74 Linux kernel 4.9.71 Linux kernel 4.9.68 Linux kernel 4.9.36 Linux kernel 4.9.13 Linux kernel 4.9.8 Linux kernel 4.9.4 Linux kernel 4.9.3 Linux kernel 4.8.11 Linux kernel 4.7.4 Linux kernel 4.4.125 Linux kernel 4.4.105 Linux kernel 4.4.30 Linux kernel 4.4.29 Linux kernel 4.4.28 Linux kernel 4.4.27 Linux kernel 4.4.25 Linux kernel 4.4.24 + SuSE Linux 7.2 Linux kernel 4.4.23 Linux kernel 4.4.22 Linux kernel 4.4.7 Linux kernel 4.4.2 Linux kernel 4.2.3 Linux kernel 4.1.47 Linux kernel 4.1.4 Linux kernel 4.1.1 Linux kernel 4.0.6 Linux kernel 3.19.3 Linux kernel 3.18.22 Linux kernel 3.18.17 Linux kernel 3.18.11 Linux kernel 3.18.8 Linux kernel 3.18.7 Linux kernel 3.18.3 Linux kernel 3.18.2 Linux kernel 3.18.1 Linux kernel 3.17.4 Linux kernel 3.17.2 Linux kernel 3.16.58 Linux kernel 3.16.7 Linux kernel 3.16.2 Linux kernel 3.16.1 Linux kernel 3.15.10 Linux kernel 3.15.5 Linux kernel 3.15.2 Linux kernel 3.14.54 Linux kernel 3.14.45 Linux kernel 3.14.37 Linux kernel 3.14.4 Linux kernel 3.14.3 Linux kernel 3.14.2 Linux kernel 3.13.11 Linux kernel 3.13.9 Linux kernel 3.13.3 Linux kernel 3.13.1 Linux kernel 3.12.49 Linux kernel 3.12.48 Linux kernel 3.12.44 Linux kernel 3.12.40 Linux kernel 3.12.21 Linux kernel 3.12.18 Linux kernel 3.12.17 Linux kernel 3.12.16 Linux kernel 3.12.11 Linux kernel 3.12.7 Linux kernel 3.12.4 Linux kernel 3.12.3 Linux kernel 3.12.2 Linux kernel 3.11.3 Linux kernel 3.10.90 Linux kernel 3.10.81 Linux kernel 3.10.73 Linux kernel 3.10.45 Linux kernel 3.10.41 Linux kernel 3.10.38 Linux kernel 3.10.37 Linux kernel 3.10.36 Linux kernel 3.10.30 Linux kernel 3.10.27 Linux kernel 3.10.26 Linux kernel 3.10.23 Linux kernel 3.10.22 Linux kernel 3.10.21 Linux kernel 3.10.14 Linux kernel 3.10.10 Linux kernel 3.10.9 Linux kernel 3.10.7 Linux kernel 3.10 Linux kernel 3.8.9 Linux kernel 3.8.6 Linux kernel 3.8.5 Linux kernel 3.8.4 Linux kernel 3.8.2 Linux kernel 3.8.1 Linux kernel 3.7.10 Linux kernel 3.7.9 Linux kernel 3.7.8 Linux kernel 3.7.7 Linux kernel 3.7.5 Linux kernel 3.7.4 Linux kernel 3.7.3 Linux kernel 3.7.2 Linux kernel 3.7.1 Linux kernel 3.6.11 Linux kernel 3.6.10 Linux kernel 3.6.9 Linux kernel 3.6.8 Linux kernel 3.6.7 Linux kernel 3.6.6 Linux kernel 3.6.5 Linux kernel 3.6.4 Linux kernel 3.6.3 Linux kernel 3.6.2 Linux kernel 3.6.1 Linux kernel 3.5.7 Linux kernel 3.5.6 Linux kernel 3.5.5 Linux kernel 3.5.4 Linux kernel 3.5.3 Linux kernel 3.5.2 Linux kernel 3.5.1 Linux kernel 3.4.88 Linux kernel 3.4.87 Linux kernel 3.4.86 Linux kernel 3.4.80 Linux kernel 3.4.76 Linux kernel 3.4.73 Linux kernel 3.4.72 Linux kernel 3.4.71 Linux kernel 3.4.64 Linux kernel 3.4.58 Linux kernel 3.4.42 Linux kernel 3.4.36 Linux kernel 3.4.32 Linux kernel 3.4.31 Linux kernel 3.4.27 Linux kernel 3.4.26 Linux kernel 3.4.25 Linux kernel 3.4.21 Linux kernel 3.4.20 Linux kernel 3.4.19 Linux kernel 3.4.18 Linux kernel 3.4.17 Linux kernel 3.4.16 Linux kernel 3.4.15 Linux kernel 3.4.14 Linux kernel 3.4.13 Linux kernel 3.4.12 Linux kernel 3.4.11 Linux kernel 3.4.10 Linux kernel 3.4.9 Linux kernel 3.4.8 Linux kernel 3.4.7 Linux kernel 3.4.6 Linux kernel 3.4.5 Linux kernel 3.4.4 Linux kernel 3.4.3 Linux kernel 3.4.2 Linux kernel 3.4.1 Linux kernel 3.3.5 Linux kernel 3.3.4 Linux kernel 3.3.2 Linux kernel 3.2.82 Linux kernel 3.2.72 Linux kernel 3.2.62 Linux kernel 3.2.57 Linux kernel 3.2.56 Linux kernel 3.2.51 Linux kernel 3.2.24 Linux kernel 3.2.23 Linux kernel 3.2.13 Linux kernel 3.2.12 Linux kernel 3.2.9 Linux kernel 3.2.1 Linux kernel 3.1.8 Linux kernel 3.0.98 Linux kernel 3.0.75 Linux kernel 3.0.72 Linux kernel 3.0.69 Linux kernel 3.0.65 Linux kernel 3.0.60 Linux kernel 3.0.59 Linux kernel 3.0.58 Linux kernel 3.0.37 Linux kernel 3.0.34 Linux kernel 3.0.5 Linux kernel 3.0.4 Linux kernel 3.0.2 Linux kernel 3.0.1 Linux kernel 2.6.20 .7 Linux kernel 2.6.20 .6 Linux kernel 2.6.20 .5 Linux kernel 2.6.20 .4 Linux kernel 2.6.20 .15 Linux kernel 2.6.20 .14 Linux kernel 2.6.20 .12 Linux kernel 2.6.20 .10 Linux kernel 2.6.20 .1 Linux kernel 2.6.20 Linux kernel 2.6.19 .4 Linux kernel 2.6.19 .3 Linux kernel 2.6.19 .2 Linux kernel 2.6.19 .1 Linux kernel 2.6.19 Linux kernel 2.6.18 .8 Linux kernel 2.6.18 .7 Linux kernel 2.6.18 .6 Linux kernel 2.6.18 .5 Linux kernel 2.6.18 .4 Linux kernel 2.6.18 .3 Linux kernel 2.6.18 .2 Linux kernel 2.6.18 .1 Linux kernel 2.6.17 .9 Linux kernel 2.6.17 .8 Linux kernel 2.6.17 .7 Linux kernel 2.6.17 .6 Linux kernel 2.6.17 .5 Linux kernel 2.6.17 .4 Linux kernel 2.6.17 .3 Linux kernel 2.6.17 .2 Linux kernel 2.6.17 .14 Linux kernel 2.6.17 .13 Linux kernel 2.6.17 .12 Linux kernel 2.6.17 .11 Linux kernel 2.6.17 .10 Linux kernel 2.6.17 .1 Linux kernel 2.6.17 Linux kernel 2.6.16 27 Linux kernel 2.6.16 13 Linux kernel 2.6.16 .9 Linux kernel 2.6.16 .8 Linux kernel 2.6.16 .7 Linux kernel 2.6.16 .6 Linux kernel 2.6.16 .53 Linux kernel 2.6.16 .52 Linux kernel 2.6.16 .51 Linux kernel 2.6.16 .50 Linux kernel 2.6.16 .5 Linux kernel 2.6.16 .49 Linux kernel 2.6.16 .48 Linux kernel 2.6.16 .47 Linux kernel 2.6.16 .46 Linux kernel 2.6.16 .45 Linux kernel 2.6.16 .44 Linux kernel 2.6.16 .43 Linux kernel 2.6.16 .41 Linux kernel 2.6.16 .40 Linux kernel 2.6.16 .4 Linux kernel 2.6.16 .39 Linux kernel 2.6.16 .38 Linux kernel 2.6.16 .37 Linux kernel 2.6.16 .36 Linux kernel 2.6.16 .35 Linux kernel 2.6.16 .34 Linux kernel 2.6.16 .33 Linux kernel 2.6.16 .32 Linux kernel 2.6.16 .31 Linux kernel 2.6.16 .30 Linux kernel 2.6.16 .3 Linux kernel 2.6.16 .29 Linux kernel 2.6.16 .28 Linux kernel 2.6.16 .27 Linux kernel 2.6.16 .26 Linux kernel 2.6.16 .25 Linux kernel 2.6.16 .24 Linux kernel 2.6.16 .23 Linux kernel 2.6.16 .22 Linux kernel 2.6.16 .21 Linux kernel 2.6.16 .20 Linux kernel 2.6.16 .2 Linux kernel 2.6.16 .19 Linux kernel 2.6.16 .18 Linux kernel 2.6.16 .17 Linux kernel 2.6.16 .16 Linux kernel 2.6.16 .15 Linux kernel 2.6.16 .14 Linux kernel 2.6.16 .12 Linux kernel 2.6.16 .11 Linux kernel 2.6.16 .10 Linux kernel 2.6.16 .1 Linux kernel 2.6.16 Linux kernel 2.6.15 .7 Linux kernel 2.6.15 .6 Linux kernel 2.6.15 .4 Linux kernel 2.6.15 .3 Linux kernel 2.6.15 .2 Linux kernel 2.6.15 .1 Linux kernel 2.6.15 Linux kernel 2.6.14 .7 Linux kernel 2.6.14 .6 Linux kernel 2.6.14 .5 Linux kernel 2.6.14 .4 Linux kernel 2.6.14 .3 Linux kernel 2.6.14 .2 Linux kernel 2.6.14 .1 Linux kernel 2.6.14 Linux kernel 2.6.13 .5 Linux kernel 2.6.13 .4 Linux kernel 2.6.13 .3 Linux kernel 2.6.13 .2 Linux kernel 2.6.13 .1 Linux kernel 2.6.13 Linux kernel 2.6.12 .6 Linux kernel 2.6.12 .5 Linux kernel 2.6.12 .4 Linux kernel 2.6.12 .3 Linux kernel 2.6.12 .22 Linux kernel 2.6.12 .2 Linux kernel 2.6.12 .12 Linux kernel 2.6.12 .1 Linux kernel 2.6.12 Linux kernel 2.6.11 .9 Linux kernel 2.6.11 .8 Linux kernel 2.6.11 .7 Linux kernel 2.6.11 .6 Linux kernel 2.6.11 .5 Linux kernel 2.6.11 .4 Linux kernel 2.6.11 .3 Linux kernel 2.6.11 .2 Linux kernel 2.6.11 .12 Linux kernel 2.6.11 .11 Linux kernel 2.6.11 .10 Linux kernel 2.6.11 .1 Linux kernel 2.6.11 Linux kernel 2.6.10 Linux kernel 2.6.2 Linux kernel 2.6.1 Linux kernel 2.6 Linux kernel 4.9.9 Linux kernel 4.9.11 Linux kernel 4.9 Linux kernel 4.8.7 Linux kernel 4.8.6 Linux kernel 4.8.3 Linux kernel 4.8.14 Linux kernel 4.8.13 Linux kernel 4.8.12 Linux kernel 4.8.1 Linux kernel 4.8 rc1 Linux kernel 4.8 Linux kernel 4.7.9 Linux kernel 4.7 Linux kernel 4.6.3 Linux kernel 4.6.2 Linux kernel 4.6.1 Linux kernel 4.6 Linux kernel 4.5.5 Linux kernel 4.5 Linux kernel 4.4.38 Linux kernel 4.4.26 Linux kernel 4.4.14 Linux kernel 4.4.1 Linux kernel 4.4.0-57 Linux kernel 4.4 Linux kernel 4.3.3 Linux kernel 4.3-rc1 Linux kernel 4.2.8 Linux kernel 4.19 Linux kernel 4.18.1 Linux kernel 4.18-rc5 Linux kernel 4.18 Linux kernel 4.17.4 Linux kernel 4.17.11 Linux kernel 4.17.10 Linux kernel 4.17-rc2 Linux kernel 4.17 Linux kernel 4.16-rc7 Linux kernel 4.16-rc6 Linux kernel 4.16-rc Linux kernel 4.16 Linux kernel 4.15.8 Linux kernel 4.15.7 Linux kernel 4.15.16 Linux kernel 4.15-rc8 Linux kernel 4.15-rc5 Linux kernel 4.15-rc4 Linux kernel 4.15 Linux kernel 4.14.8 Linux kernel 4.14.7 Linux kernel 4.14.4 Linux kernel 4.14.3 Linux kernel 4.14.2 Linux kernel 4.14.15 Linux kernel 4.14.14 Linux kernel 4.14-rc5 Linux kernel 4.14-rc1 Linux kernel 4.14 Linux kernel 4.13.5 Linux kernel 4.13.2 Linux kernel 4.13.1 Linux kernel 4.13 Linux kernel 4.12.10 Linux kernel 4.12.1 Linux kernel 4.12-rc1 Linux kernel 4.12 Linux kernel 4.11.8 Linux kernel 4.11.7 Linux kernel 4.11 Linux kernel 4.10.9 Linux kernel 4.10.8 Linux kernel 4.10.7 Linux kernel 4.10.5 Linux kernel 4.10.3 Linux kernel 4.10.2 Linux kernel 4.10.11 Linux kernel 4.10.1 Linux kernel 4.1.15 Linux kernel 4.1 Linux kernel 4.0.5 Linux kernel 3.9.8 Linux kernel 3.9.4 Linux kernel 3.9 Linux kernel 3.8 Linux kernel 3.7.6 Linux kernel 3.7 Linux kernel 3.6 Linux kernel 3.5 Linux kernel 3.4.93 Linux kernel 3.4.81 Linux kernel 3.4.70 Linux kernel 3.4.67 Linux kernel 3.4.29 Linux kernel 3.4 Linux kernel 3.3 Linux kernel 3.2.81 Linux kernel 3.2.78 Linux kernel 3.2.65 Linux kernel 3.2.64 Linux kernel 3.2.63-2 Linux kernel 3.2.63 Linux kernel 3.2.60 Linux kernel 3.2.55 Linux kernel 3.2.54 Linux kernel 3.2.53 Linux kernel 3.2.52 Linux kernel 3.2.50 Linux kernel 3.2.44 Linux kernel 3.2.42 Linux kernel 3.2.38 Linux kernel 3.2.2 Linux kernel 3.2 Linux kernel 3.19.2 Linux kernel 3.19 Linux kernel 3.18.9 Linux kernel 3.18 Linux kernel 3.17.6 Linux kernel 3.17-rc3 Linux kernel 3.17 Linux kernel 3.16.6 Linux kernel 3.16.36 Linux kernel 3.16.0-28 Linux kernel 3.16 Linux kernel 3.15-rc3 Linux kernel 3.15-rc2 Linux kernel 3.15-rc1 Linux kernel 3.15 Linux kernel 3.14.79 Linux kernel 3.14.73 Linux kernel 3.14.7 Linux kernel 3.14.5 Linux kernel 3.14-rc7 Linux kernel 3.14-rc4 Linux kernel 3.14-rc3 Linux kernel 3.14-rc2 Linux kernel 3.14-rc1 Linux kernel 3.14-4 Linux kernel 3.14-1 Linux kernel 3.14 Linux kernel 3.13.7 Linux kernel 3.13.6 Linux kernel 3.13.5 Linux kernel 3.13.4 Linux kernel 3.13.0 Linux kernel 3.13-rc1 Linux kernel 3.13 Linux kernel 3.12.22 Linux kernel 3.12.15 Linux kernel 3.12.14 Linux kernel 3.12.12 Linux kernel 3.12.1 Linux kernel 3.12 Linux kernel 3.11.9 Linux kernel 3.11.6 Linux kernel 3.11-rc7 Linux kernel 3.11-rc4 Linux kernel 3.11-rc1 Linux kernel 3.11 Linux kernel 3.10.5 Linux kernel 3.10.43 Linux kernel 3.10.31 Linux kernel 3.10.20 Linux kernel 3.10.17 Linux kernel 3.10-rc5 Linux kernel 3.1 Linux kernel 3.0.66 Linux kernel 3.0.62 Linux kernel 3.0.18 Linux kernel 3.0 Linux kernel 2.6.18 Linux kernel 2.6.16.9 Linux kernel 2.6.16.7 Linux kernel 2.6.15.5 Linux kernel 2.6.15.4 Linux kernel 2.6.15.11 Linux kernel 2.6.14.3 Linux kernel 2.6.14.2 Linux kernel 2.6.14.1 Linux kernel 2.6.13.4 Linux kernel 2.6.13.3 Linux kernel 2.6.13.2 Linux kernel 2.6.13.1 Linux kernel 2.6.12.6 Linux kernel 2.6.12.5 Linux kernel 2.6.12.4 Linux kernel 2.6.12.3 Linux kernel 2.6.12.2 Linux kernel 2.6.12.1 Linux kernel 2.6.11.8 Linux kernel 2.6.11.7 Linux kernel 2.6.11.6 Linux kernel 2.6.11.5 Linux kernel 2.6.11.4 Linux kernel 2.6.11.12 Linux kernel 2.6.11.11
Not Vulnerable:

Linux kernel CVE-2019-7221 Local Denial of Service Vulnerability

Linux kernel is prone to a local denial-of-service vulnerability.

Attackers may leverage this issue to cause a denial-of-service condition, denying service to legitimate users.

Linux kernel CVE-2019-7221 Local Denial of Service Vulnerability

Currently, we are not aware of any working exploits. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected].

Linux kernel CVE-2019-7221 Local Denial of Service Vulnerability

Solution:
Updates are available. Please see the references or vendor advisory for more information.

Linux kernel CVE-2019-7221 Local Denial of Service Vulnerability

References:

• KVM: nVMX: unconditionally cancel preemption timer in free_nested (CVE-2019-7221 (kernel.org)
  
• Linux kernel Homepage (kernel.org)
  
• ALAS-2019-1165 (Amazon)
  
• Bug 1671904 (CVE-2019-7221) - CVE-2019-7221 Kernel: KVM: nVMX: use-after-free o (Redhat)
  
• Amazon Linux AMI : kernel (ALAS-2019-1165) (Tenable)
  
• CVE-2019-7221 (Redhat)
  
• Oracle Linux Bulletin - April 2019 (Oracle)