Vuln: Linux Kernel 'crypto/af_alg.c' Use After Free Arbitrary Code Execution Vulnerability

Linux Kernel is prone to an arbitrary code-execution vulnerability.

An attacker can exploit this issue to execute arbitrary code in the context of the kernel. Failed exploits may result in denial-of-service conditions.

Linux Kernel 4.20.10 and prior versions are vulnerable.

exploit

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: vuldb@securityfocus.com.

solution

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

info

Bugtraq ID:	107063
Class:	Design Error
CVE:	CVE-2019-8912
Remote:	No
Local:	Yes
Published:	Feb 15 2019 12:00AM
Updated:	Jul 16 2019 11:00AM
Credit:	KASAN
Vulnerable:	Paloaltonetworks PAN-OS 9.0.2 Paloaltonetworks PAN-OS 9.0.1 Paloaltonetworks PAN-OS 9.0 Paloaltonetworks PAN-OS 8.1.8 Paloaltonetworks PAN-OS 8.1.7 Paloaltonetworks PAN-OS 8.1.6 Paloaltonetworks PAN-OS 8.1.5 Paloaltonetworks PAN-OS 8.1.4 Paloaltonetworks PAN-OS 8.1.3 Paloaltonetworks PAN-OS 8.1.2 Paloaltonetworks PAN-OS 8.1.1 Paloaltonetworks PAN-OS 8.1 Paloaltonetworks PAN-OS 8.0.17 Paloaltonetworks PAN-OS 8.0.16 Paloaltonetworks PAN-OS 8.0.15 Paloaltonetworks PAN-OS 8.0.14 Paloaltonetworks PAN-OS 8.0.13 Paloaltonetworks PAN-OS 8.0.12 Paloaltonetworks PAN-OS 8.0.9 Paloaltonetworks PAN-OS 8.0.8 Paloaltonetworks PAN-OS 8.0.2 Paloaltonetworks PAN-OS 8.0.1 Paloaltonetworks PAN-OS 7.1.23 Paloaltonetworks PAN-OS 7.1.22 Paloaltonetworks PAN-OS 7.1.21 Paloaltonetworks PAN-OS 7.1.20 Paloaltonetworks PAN-OS 7.1.19 Paloaltonetworks PAN-OS 7.1.16 Paloaltonetworks PAN-OS 7.1.12 Paloaltonetworks PAN-OS 7.1.11 Paloaltonetworks PAN-OS 7.1.9 Paloaltonetworks PAN-OS 7.1.5 Paloaltonetworks PAN-OS 7.1.4 Paloaltonetworks PAN-OS 7.1.3 Paloaltonetworks PAN-OS 7.1.2 Paloaltonetworks PAN-OS 7.1.1 Paloaltonetworks PAN-OS 7.1 Paloaltonetworks PAN-OS 8.0.7 Paloaltonetworks PAN-OS 8.0.6 Paloaltonetworks PAN-OS 8.0.5 Paloaltonetworks PAN-OS 8.0.4 Paloaltonetworks PAN-OS 8.0.3 Paloaltonetworks PAN-OS 8.0.11 Paloaltonetworks PAN-OS 8.0.10 Paloaltonetworks PAN-OS 8.0 Paloaltonetworks PAN-OS 7.1.8 Paloaltonetworks PAN-OS 7.1.7 Paloaltonetworks PAN-OS 7.1.6 Paloaltonetworks PAN-OS 7.1.18 Paloaltonetworks PAN-OS 7.1.17 Paloaltonetworks PAN-OS 7.1.14 Paloaltonetworks PAN-OS 7.1.13 Paloaltonetworks PAN-OS 7.1.10 Oracle Linux 7 Linux kernel 4.20.10 Linux kernel 4.20.6 Linux kernel 4.19.23 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 4.9.91 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 4.4.157 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 2.6.39 Linux kernel 2.6.38 Linux kernel 2.6.37 Linux kernel 2.6.36 Linux kernel 2.6.35 Linux kernel 2.6.34 Linux kernel 2.6.33 Linux kernel 2.6.32 Linux kernel 2.6.31 Linux kernel 2.6.30 Linux kernel 2.6.29 Linux kernel 2.6.28 Linux kernel 2.6.27 Linux kernel 2.6.26 Linux kernel 2.6.25 Linux kernel 2.6.24 Linux kernel 2.6.23 Linux kernel 2.6.22 Linux kernel 2.6.21 Linux kernel 2.6.20 Linux kernel 2.6.19 Linux kernel 2.6.17 Linux kernel 2.6.16 Linux kernel 2.6.15 Linux kernel 2.6.14 Linux kernel 2.6.13 Linux kernel 2.6.12 Linux kernel 2.6.11 Linux kernel 2.6.10 Linux kernel 2.6.9 Linux kernel 2.6.8 Linux kernel 2.6.7 Linux kernel 2.6.6 Linux kernel 2.6.5 Linux kernel 2.6.4 Linux kernel 2.6.3 Linux kernel 2.6.2 Linux kernel 2.6.1 Linux kernel 2.6 Linux kernel 2.4.30 rc3 Linux kernel 4.9.9 Linux kernel 4.9.11 Linux kernel 4.9-rc8 Linux kernel 4.9-rc4 Linux kernel 4.9-rc3 Linux kernel 4.9-rc1 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-rc6 Linux kernel 4.7-rc5 + Redhat Linux 7.2 + SuSE Linux 7.2 + SuSE Linux 7.1 Linux kernel 4.7-rc1 Linux kernel 4.6.3 Linux kernel 4.6.2 Linux kernel 4.6.1 Linux kernel 4.6-rc1 Linux kernel 4.6 rc7 Linux kernel 4.6 rc6 Linux kernel 4.6 Linux kernel 4.5.5 Linux kernel 4.5-rc7 Linux kernel 4.5-rc4 Linux kernel 4.5-rc2 Linux kernel 4.5-rc1 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-rc5 Linux kernel 4.4-rc4 Linux kernel 4.4-rc1 Linux kernel 4.4 Linux kernel 4.3.3 Linux kernel 4.3-rc1 Linux kernel 4.2.8 Linux kernel 4.2 Linux kernel 4.19 Linux kernel 4.18.1 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 4.14.0-rc1 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-rc4 Linux kernel 4.13-rc1 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-rc8 Linux kernel 4.11-rc7 Linux kernel 4.11-rc6 Linux kernel 4.11-rc5 Linux kernel 4.11-rc4 Linux kernel 4.11-rc3 Linux kernel 4.11-rc2 Linux kernel 4.11-rc1 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 4.10-rc8 Linux kernel 4.10-rc1 Linux kernel 4.1.15 Linux kernel 4.1-rc7 Linux kernel 4.1-rc6 Linux kernel 4.1-rc3 Linux kernel 4.1-rc1 Linux kernel 4.1 Linux kernel 4.0.5 Linux kernel 4.0-rc1 Linux kernel 4.0 Linux kernel 3.9.8 Linux kernel 3.9.4 Linux kernel 3.9-rc8 Linux kernel 3.9-rc7 Linux kernel 3.9-rc3 Linux kernel 3.9-rc1 Linux kernel 3.9 Linux kernel 3.8-rc1 Linux kernel 3.8 Linux kernel 3.7.6 Linux kernel 3.7-rc1 Linux kernel 3.7 Linux kernel 3.6-rc1 Linux kernel 3.6 Linux kernel 3.5-rc1 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-rc7 Linux kernel 3.19-rc2 Linux kernel 3.19-rc 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 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 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 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 Linux kernel 3.1-rc1 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
Not Vulnerable:	Paloaltonetworks PAN-OS 9.0.3 Paloaltonetworks PAN-OS 8.1.9 Paloaltonetworks PAN-OS 8.0.18 Paloaltonetworks PAN-OS 7.1.24

references

References:

• [net-next] net: crypto set sk to NULL when af_alg_release. (Linux)
  
• Linux kernel Homepage (kernel.org)
  
• Oracle Linux Bulletin - April 2019 (Oracle)
  
• Privilege Escalation in PAN-OS (PAN-SA-2019-0017) (Palo Alto Networks)
  

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