Description
In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix out-of-bounds read in rtw_get_ie() parser The Information Element (IE) parser rtw_get_ie() trusted the length byte of each IE without validating that the IE body (len bytes after the 2-byte header) fits inside the remaining frame buffer. A malformed frame can advertise an IE length larger than the available data, causing the parser to increment its pointer beyond the buffer end. This results in out-of-bounds reads or, depending on the pattern, an infinite loop. Fix by validating that (offset + 2 + len) does not exceed the limit before accepting the IE or advancing to the next element. This prevents OOB reads and ensures the parser terminates safely on malformed frames.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
554c0a3abf216c991c5ebddcdb2c08689ecd290b to < 9829c6e1b2e4180fd18315252ad6faeab6128076affected554c0a3abf216c991c5ebddcdb2c08689ecd290b to < b977eb31802817f4a37da95bf16bfdaa1eeb5fc2affected554c0a3abf216c991c5ebddcdb2c08689ecd290b to < 30c558447e90935f0de61be181bbcedf75952e00affected554c0a3abf216c991c5ebddcdb2c08689ecd290b to < a54e2b2db1b7de2e008b4f62eec35aaefcc663c5affected554c0a3abf216c991c5ebddcdb2c08689ecd290b to < df191dd9f4c7249d98ada55634fa8ac19089b8cbaffected554c0a3abf216c991c5ebddcdb2c08689ecd290b to < c0d93d69e1472ba75b78898979b90a98ba2a2501affected554c0a3abf216c991c5ebddcdb2c08689ecd290b to < 154828bf9559b9c8421fc2f0d7f7f76b3683aaedaffected
Linux Linux
Default version status: affected
4.12affected0 to < 4.12unaffected5.15.203 to ≤ 5.15.*unaffected6.1.160 to ≤ 6.1.*unaffected6.6.120 to ≤ 6.6.*unaffected6.12.62 to ≤ 6.12.*unaffected6.17.12 to ≤ 6.17.*unaffected6.18.1 to ≤ 6.18.*unaffected6.19 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/9829c6e1b2e4180fd18315252ad6faeab6128076 ↗
- https://git.kernel.org/stable/c/b977eb31802817f4a37da95bf16bfdaa1eeb5fc2 ↗
- https://git.kernel.org/stable/c/30c558447e90935f0de61be181bbcedf75952e00 ↗
- https://git.kernel.org/stable/c/a54e2b2db1b7de2e008b4f62eec35aaefcc663c5 ↗
- https://git.kernel.org/stable/c/df191dd9f4c7249d98ada55634fa8ac19089b8cb ↗
- https://git.kernel.org/stable/c/c0d93d69e1472ba75b78898979b90a98ba2a2501 ↗
- https://git.kernel.org/stable/c/154828bf9559b9c8421fc2f0d7f7f76b3683aaed ↗