netfilter: nft_set_pipapo: release elements in clone from abort path
Summary
GSD-2022-1004424: netfilter: nft_set_pipapo: release elements in clone from abort path. Affects Kernel versions >= 3c4287f62044a90e73a561aa05fc46e62da173da, < 5ccecafc728b0df48263d5ac198220bcd79830bc. No fix is published. How to fix ↓
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Background
The netfilter package is a component of the Linux Kernel that provides firewall functionality. It allows for the filtering and manipulation of network packets at various layers of the network stack. The nft_set_pipapo module is a part of netfilter that handles the management of sets. Sets are data structures used to store and match network addresses, ports, and other attributes. This vulnerability affects the nft_set_pipapo module and can potentially lead to resource leaks and memory corruption.
Vulnerability Detail
The vulnerability in the nft_set_pipapo module arises from a failure to properly release elements in a clone from the abort path. This can result in resource leaks and memory corruption, potentially leading to denial of service or arbitrary code execution. The vulnerability was introduced in version v5.6 of the Linux Kernel and is fixed in version v5.15.54. It is important to note that the impact and attack plausibility of this vulnerability have not yet been proven.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no specific workaround mentioned for this vulnerability. However, as a general best practice, it is recommended to implement strict network access controls and regularly monitor and update the system for security patches.
Conclusion
The netfilter nft_set_pipapo module in the Linux Kernel is vulnerable to resource leaks and memory corruption due to a failure to release elements in a clone from the abort path. It is recommended to update the Linux Kernel to version v5.15.54 or later to mitigate this vulnerability. Regularly updating the kernel and implementing strict network access controls are important security practices. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
Netfilter is a component of the Linux Kernel that provides firewall functionality, allowing for the filtering and manipulation of network packets.
nft_set_pipapo is a module within netfilter that handles the management of sets, which are data structures used to store and match network addresses, ports, and other attributes.
The impact of this vulnerability can include resource leaks, memory corruption, denial of service, or arbitrary code execution. However, the actual impact and attack plausibility have not yet been proven.
To fix this vulnerability, it is recommended to update the Linux Kernel to version v5.15.54 or later by pulling the latest updates from the official Linux Kernel repository and rebuilding the kernel.
There is no specific workaround mentioned for this vulnerability. However, implementing strict network access controls and regularly monitoring and updating the system for security patches is generally advisable.
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