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Date: Wed, 1 May 2024 07:31:16 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-cve-announce@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org> Subject: CVE-2024-27015: netfilter: flowtable: incorrect pppoe tuple Description =========== In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable: incorrect pppoe tuple pppoe traffic reaching ingress path does not match the flowtable entry because the pppoe header is expected to be at the network header offset. This bug causes a mismatch in the flow table lookup, so pppoe packets enter the classical forwarding path. The Linux kernel CVE team has assigned CVE-2024-27015 to this issue. Affected and fixed versions =========================== Issue introduced in 5.13 with commit 72efd585f714 and fixed in 5.15.157 with commit e719b52d0c56 Issue introduced in 5.13 with commit 72efd585f714 and fixed in 6.1.88 with commit f1c3c61701a0 Issue introduced in 5.13 with commit 72efd585f714 and fixed in 6.6.29 with commit 4ed82dd368ad Issue introduced in 5.13 with commit 72efd585f714 and fixed in 6.8.8 with commit e3f078103421 Issue introduced in 5.13 with commit 72efd585f714 and fixed in 6.9-rc5 with commit 6db5dc7b351b Please see https://www.kernel.org for a full list of currently supported kernel versions by the kernel community. Unaffected versions might change over time as fixes are backported to older supported kernel versions. The official CVE entry at https://cve.org/CVERecord/?id=CVE-2024-27015 will be updated if fixes are backported, please check that for the most up to date information about this issue. Affected files ============== The file(s) affected by this issue are: net/netfilter/nf_flow_table_ip.c Mitigation ========== The Linux kernel CVE team recommends that you update to the latest stable kernel version for this, and many other bugfixes. Individual changes are never tested alone, but rather are part of a larger kernel release. Cherry-picking individual commits is not recommended or supported by the Linux kernel community at all. If however, updating to the latest release is impossible, the individual changes to resolve this issue can be found at these commits: https://git.kernel.org/stable/c/e719b52d0c56989b0f3475a03a6d64f182c85b56 https://git.kernel.org/stable/c/f1c3c61701a0b12f4906152c1626a5de580ea3d2 https://git.kernel.org/stable/c/4ed82dd368ad883dc4284292937b882f044e625d https://git.kernel.org/stable/c/e3f078103421642fcd5f05c5e70777feb10f000d https://git.kernel.org/stable/c/6db5dc7b351b9569940cd1cf445e237c42cd6d27
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