In the Linux kernel, the following vulnerability has been resolved:
hfs/hfsplus: fix u32 overflow in check_and_correct_requested_length
check_and_correct_requested_length() compares (off + len) against
node_size using u32 arithmetic. When the caller passes a large len
value (e.g. from an underflowed subtraction in hfs_brec_remove()),
off + len can wrap past 2^32 and produce a small result, causing the
bounds check to pass when it should fail.
For example, with off=14 and len=0xFFFFFFF2 (underflowed from
data_off - keyoffset - size in hfs_brec_remove), off + len wraps to 6,
which is less than a typical node_size of 512, so the check passes and
the subsequent memmove reads ~4GB past the node buffer.
Fix this by widening the addition to u64 before comparing against
node_size. This prevents the u32 wrap while keeping the logic
straightforward.
CVSS
7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
from 67ecc81f6492275c9c54280532f558483c99c90e before c8dd112173c02adf539fe2ad34a45f5e0068780d; from a1a60e79502279f996e55052f50cc14919020475 before fc9d1447ca3cdc78d2e4ace1ce1f3a7c77ca08b1; from fe2891a9c43ab87d1a210d61e6438ca6936e2f62 before 671c3fcc2ad31c1311ea6414382a2d95104ae1b9; from 384a66b89f9540a9a8cb0f48807697dfabaece4c before b6a481642ea1977be2f84dc08c5affd742c177e7; from efc095b35b23297e419c2ab4fc1ed1a8f0781a29 before 7399c3baee7bb622a92f0b895cd4d3009a693f2b; from a431930c9bac518bf99d6b1da526a7f37ddee8d8 before 607217f7ad419b53926f71e3f75001813bbc08ad; from a431930c9bac518bf99d6b1da526a7f37ddee8d8 before c25d3c931a63e762fcaa9cb125b901c53b62403f; from a431930c9bac518bf99d6b1da526a7f37ddee8d8 before 966cb76fb2857a4242cab6ea2ea17acf818a3da7; and 11 more ranges
from 5.4.297 before 5.5; from 5.10.241 before 5.10.261; from 5.15.190 before 5.15.212; from 6.1.149 before 6.1.178; from 6.6.103 before 6.6.145; from 6.12.43 before 6.12.97; from 6.15.11 before 6.16; from 6.16.2 before 6.18.40; and 1 more ranges
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.
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