Vulnerability Details CVE-2024-53206
In the Linux kernel, the following vulnerability has been resolved:
tcp: Fix use-after-free of nreq in reqsk_timer_handler().
The cited commit replaced inet_csk_reqsk_queue_drop_and_put() with
__inet_csk_reqsk_queue_drop() and reqsk_put() in reqsk_timer_handler().
Then, oreq should be passed to reqsk_put() instead of req; otherwise
use-after-free of nreq could happen when reqsk is migrated but the
retry attempt failed (e.g. due to timeout).
Let's pass oreq to reqsk_put().
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 7.8%
CVSS Severity
CVSS v3 Score 7.8
References
- https://git.kernel.org/stable/c/2dcc86fefe09ac853158afd96b60d544af115dc5
- https://git.kernel.org/stable/c/65ed89cad1f57034c256b016e89e8c0a4ec7c65b
- https://git.kernel.org/stable/c/6d845028609a4af0ad66f499ee0bd5789122b067
- https://git.kernel.org/stable/c/9a3c1ad93e6fba67b3a637cfa95a57a6685e4908
- https://git.kernel.org/stable/c/c31e72d021db2714df03df6c42855a1db592716c
- https://git.kernel.org/stable/c/d0eb14cb8c08b00c36a3d5dc57a6f428b301f721
Products affected by CVE-2024-53206
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cpe:2.3:o:linux:linux_kernel:5.15.170
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cpe:2.3:o:linux:linux_kernel:5.15.171
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cpe:2.3:o:linux:linux_kernel:5.15.172
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cpe:2.3:o:linux:linux_kernel:5.15.173
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cpe:2.3:o:linux:linux_kernel:6.1.115
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cpe:2.3:o:linux:linux_kernel:6.1.116
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cpe:2.3:o:linux:linux_kernel:6.1.117
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cpe:2.3:o:linux:linux_kernel:6.1.118
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cpe:2.3:o:linux:linux_kernel:6.1.119
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cpe:2.3:o:linux:linux_kernel:6.11.10
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cpe:2.3:o:linux:linux_kernel:6.11.6
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cpe:2.3:o:linux:linux_kernel:6.11.7
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cpe:2.3:o:linux:linux_kernel:6.11.8
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cpe:2.3:o:linux:linux_kernel:6.11.9
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cpe:2.3:o:linux:linux_kernel:6.12
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cpe:2.3:o:linux:linux_kernel:6.12.1
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cpe:2.3:o:linux:linux_kernel:6.6.59
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cpe:2.3:o:linux:linux_kernel:6.6.60
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cpe:2.3:o:linux:linux_kernel:6.6.61
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cpe:2.3:o:linux:linux_kernel:6.6.62
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cpe:2.3:o:linux:linux_kernel:6.6.63