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kernel: l2tp: Race condition between pppol2tp_session_create() and l2tp_eth_create()

🗓️ 07 Aug 2019 19:56:13Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 4 Views

Race condition where l2tp_tunnel_find may create a tunnel with a removed id not protected by a reference counter.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
IBM Security Bulletins		Security Bulletin: IBM QRadar SIEM is vulnerable to multiple Kernel vulnerabilities
6 Nov 201919:05
–ibm
Android Security Bulletins		Pixel / Nexus Security Bulletin—September 2018Stay organized with collectionsSave and categorize content based on your preferences.
4 Sep 201800:00
–androidsecurity
BDU FSTEC		The vulnerability of the pppol2tp_connect driver of the Android operating system allows a hacker to increase their privileges and execute arbitrary code.
9 Jul 202000:00
–bdu_fstec
Tenable Nessus		CentOS 7 : kernel (CESA-2019:2029)
11 Sep 201900:00
–nessus
Tenable Nessus		EulerOS 2.0 SP5 : kernel (EulerOS-SA-2021-1684)
24 Mar 202100:00
–nessus
Tenable Nessus		MiracleLinux 7 : kernel-3.10.0-1062.el7 (AXSA:2019-4338:05)
16 Jan 202600:00
–nessus
Tenable Nessus		NewStart CGSL CORE 5.04 / MAIN 5.04 : kernel Multiple Vulnerabilities (NS-SA-2019-0180)
15 Oct 201900:00
–nessus
Tenable Nessus		NewStart CGSL CORE 5.04 / MAIN 5.04 : kernel-rt Multiple Vulnerabilities (NS-SA-2019-0183)
15 Oct 201900:00
–nessus
Tenable Nessus		NewStart CGSL CORE 5.05 / MAIN 5.05 : kernel Multiple Vulnerabilities (NS-SA-2019-0247)
31 Dec 201900:00
–nessus
Tenable Nessus		NewStart CGSL CORE 5.05 / MAIN 5.05 : kernel-rt Multiple Vulnerabilities (NS-SA-2019-0253)
31 Dec 201900:00
–nessus
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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux7x86_64kernel-rt0:3.10.0-1062.rt56.1022.el7kernel-rt-0:3.10.0-1062.rt56.1022.el7.x86_64.rpm
Red Hat Enterprise Linux7x86_64kernel-rt-debug0:3.10.0-1062.rt56.1022.el7kernel-rt-debug-0:3.10.0-1062.rt56.1022.el7.x86_64.rpm
Red Hat Enterprise Linux7x86_64kernel-rt-debug-debuginfo0:3.10.0-1062.rt56.1022.el7kernel-rt-debug-debuginfo-0:3.10.0-1062.rt56.1022.el7.x86_64.rpm
Red Hat Enterprise Linux7x86_64kernel-rt-debug-devel0:3.10.0-1062.rt56.1022.el7kernel-rt-debug-devel-0:3.10.0-1062.rt56.1022.el7.x86_64.rpm
Red Hat Enterprise Linux7x86_64kernel-rt-debug-kvm0:3.10.0-1062.rt56.1022.el7kernel-rt-debug-kvm-0:3.10.0-1062.rt56.1022.el7.x86_64.rpm
Red Hat Enterprise Linux7x86_64kernel-rt-debug-kvm-debuginfo0:3.10.0-1062.rt56.1022.el7kernel-rt-debug-kvm-debuginfo-0:3.10.0-1062.rt56.1022.el7.x86_64.rpm
Red Hat Enterprise Linux7x86_64kernel-rt-debuginfo0:3.10.0-1062.rt56.1022.el7kernel-rt-debuginfo-0:3.10.0-1062.rt56.1022.el7.x86_64.rpm
Red Hat Enterprise Linux7x86_64kernel-rt-debuginfo-common-x86_640:3.10.0-1062.rt56.1022.el7kernel-rt-debuginfo-common-x86_64-0:3.10.0-1062.rt56.1022.el7.x86_64.rpm
Red Hat Enterprise Linux7x86_64kernel-rt-devel0:3.10.0-1062.rt56.1022.el7kernel-rt-devel-0:3.10.0-1062.rt56.1022.el7.x86_64.rpm
Red Hat Enterprise Linux7anykernel-rt-doc0:3.10.0-1062.rt56.1022.el7.noarchkernel-rt-doc-0:3.10.0-1062.rt56.1022.el7.noarch.noarch.rpm
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30 Jun 2026 11:35Current
6.8Medium risk
Vulners AI Score6.8
CVSS 36.7
CVSS 27.2
EPSS0.00424
CWE-367
linux kerneltunnel race conditiontunnel id reusereference counternetlink codepppol2tp session
4