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18-Year-Old Linux SCTP Flaw Could Let Local Users Gain Root and Escape Containers
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18-Year-Old Linux SCTP Flaw Could Let Local Users Gain Root and Escape Containers


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A use-after-free bug in Linux’s SCTP networking code can be turned into full root on a host, and Tencent researchers say they used it to escape a container and reach the machine underneath.The flaw has existed since 2008. The fix already shipped: stable kernels 7.1.6, 6.18.42, 6.12.101 and 6.6.148, released August 3, close it. Anyone running an older kernel with SCTP reachable should update.

First seen on thehackernews.com

Jump to article: thehackernews.com/2026/08/18-year-old-linux-sctp-flaw-could-let.html

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