CVE-2019-11815: Race Condition
An issue was discovered in rdstcpkillsock in net/rds/tcp.c in the Linux kernel before 5.0.8. There is a race condition leading to a use-after-free, related to net namespace cleanup.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 4.19.37-1Fixed in 4.9.168-1+deb9u3 - Upgrade
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debian/linuxto a version that resolves this vulnerability.Fixed in 6.1.176-1Fixed in 6.1.190-1Fixed in 6.12.107-1Fixed in 6.12.116-1Fixed in 7.2.15-1Fixed in 7.3.3-1 - Upgrade
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ubuntu/linux-awsto a version that resolves this vulnerability.Fixed in 4.4.0-1054.58 - Upgrade
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ubuntu/linux-azureto a version that resolves this vulnerability.Fixed in 4.15.0-1059.64~14.04.1 - Upgrade
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ubuntu/linux-lts-xenialto a version that resolves this vulnerability.Fixed in 4.4.0-164.192~14.04.1 - Upgrade
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ubuntu/linuxto a version that resolves this vulnerability.Fixed in 4.4.0-150.176 - Upgrade
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ubuntu/linux-awsto a version that resolves this vulnerability.Fixed in 4.4.0-1084.94 - Upgrade
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ubuntu/linux-aws-hweto a version that resolves this vulnerability.Fixed in 4.15.0-1047.49~16.04.1 - Upgrade
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ubuntu/linux-azureto a version that resolves this vulnerability.Fixed in 4.15.0-1051.56 - Upgrade
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ubuntu/linux-gcpto a version that resolves this vulnerability.Fixed in 4.15.0-1037.39~16.04.1 - Upgrade
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ubuntu/linux-hweto a version that resolves this vulnerability.Fixed in 4.15.0-55.60~16.04.2 - Upgrade
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ubuntu/linux-kvmto a version that resolves this vulnerability.Fixed in 4.4.0-1047.53 - Upgrade
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ubuntu/linux-oracleto a version that resolves this vulnerability.Fixed in 4.15.0-1018.20~16.04.1 - Upgrade
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ubuntu/linux-raspi2to a version that resolves this vulnerability.Fixed in 4.4.0-1110.118 - Upgrade
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ubuntu/linux-snapdragonto a version that resolves this vulnerability.Fixed in 4.4.0-1114.119 - Upgrade
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ubuntu/linux-fipsto a version that resolves this vulnerability.Fixed in 4.4.0-1011.14 - Upgrade
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ubuntu/linuxto a version that resolves this vulnerability.Fixed in 4.15.0-55.60 - Upgrade
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ubuntu/linux-awsto a version that resolves this vulnerability.Fixed in 4.15.0-1047.49 - Upgrade
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ubuntu/linux-azureto a version that resolves this vulnerability.Fixed in 4.18.0-1025.27~18.04.1 - Upgrade
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ubuntu/linux-gcpto a version that resolves this vulnerability.Fixed in 4.15.0-1037.39 - Upgrade
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ubuntu/linux-gke-4.15to a version that resolves this vulnerability.Fixed in 4.15.0-1037.39 - Upgrade
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ubuntu/linux-hweto a version that resolves this vulnerability.Fixed in 5.0.0-23.24~18.04.1 - Upgrade
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ubuntu/linux-hwe-edgeto a version that resolves this vulnerability.Fixed in 5.0.0-16.17~18.04.1 - Upgrade
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ubuntu/linux-kvmto a version that resolves this vulnerability.Fixed in 4.15.0-1039.39 - Upgrade
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ubuntu/linux-oemto a version that resolves this vulnerability.Fixed in 4.15.0-1050.57 - Upgrade
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ubuntu/linux-oracleto a version that resolves this vulnerability.Fixed in 4.15.0-1018.20 - Upgrade
Upgrade
ubuntu/linux-raspi2to a version that resolves this vulnerability.Fixed in 4.15.0-1041.44 - Upgrade
Upgrade
ubuntu/linux-snapdragonto a version that resolves this vulnerability.Fixed in 4.15.0-1058.64 - Upgrade
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ubuntu/linux-aws-fipsto a version that resolves this vulnerability.Fixed in 4.15.0-2018.18 - Upgrade
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ubuntu/linux-azure-fipsto a version that resolves this vulnerability.Fixed in 4.15.0-2006.7
Event History
Frequently Asked Questions
What is the severity of CVE-2019-11815?
CVE-2019-11815 is classified as a high severity vulnerability due to the potential for a use-after-free condition.
How do I fix CVE-2019-11815?
To fix CVE-2019-11815, update the Linux kernel to versions 5.0.8 or later, or the specific patched versions provided by your distribution.
What type of vulnerability is CVE-2019-11815?
CVE-2019-11815 is a vulnerability characterized as a race condition leading to a use-after-free in the Linux kernel.
Which systems are affected by CVE-2019-11815?
CVE-2019-11815 affects various versions of the Linux kernel before 5.0.8 and specific distributions such as Debian and Ubuntu.
What could an attacker exploit in CVE-2019-11815?
An attacker could exploit CVE-2019-11815 to execute arbitrary code or cause a denial of service due to the race condition in net namespace cleanup.