Description
In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix OOB read in OnAssocRsp() IE loop The IE parsing loop in OnAssocRsp() advances by (pIE->length + 2) each iteration but only guards on i < pkt_len. When a malicious AP sends an AssocResponse whose last IE has only one byte remaining in the frame (the element_id byte lands at pkt_len-1), the loop reads pIE->length from pframe[pkt_len], which is one byte past the allocated receive buffer. Additionally, even when the header bytes are in bounds, pIE->length itself can extend the data window beyond pkt_len, silently passing a truncated IE to the handler functions. Add two guards at the top of the loop body: 1. Break if fewer than sizeof(*pIE) bytes remain (can't read header). 2. Break if the IE's declared data extends past pkt_len.
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 < 3ae0577d3be9f1e2707cce4749da250054e25e3faffected554c0a3abf216c991c5ebddcdb2c08689ecd290b to < 889ca6000ac7fa73457b041848fcb08e0d51b809affected554c0a3abf216c991c5ebddcdb2c08689ecd290b to < 1a52a05471494546f955a58e8c170c0c796c52d5affected554c0a3abf216c991c5ebddcdb2c08689ecd290b to < 0406d746574e875d8778552eb674fcfbf5330bfbaffected554c0a3abf216c991c5ebddcdb2c08689ecd290b to < 0970dd47726a57e52013594e9fbf667586eb3673affected554c0a3abf216c991c5ebddcdb2c08689ecd290b to < 04f612dc03427e0b1ac80a2611b5ac0ba93ac446affected554c0a3abf216c991c5ebddcdb2c08689ecd290b to < 7e7741c8315e4160aead00a60cdd6f81ab880717affected554c0a3abf216c991c5ebddcdb2c08689ecd290b to < f9654207e92283e0acac5d64fe5f8835383b5a23affected
Linux Linux
Default version status: affected
4.12affected0 to < 4.12unaffected5.10.273 to ≤ 5.10.*unaffected5.15.212 to ≤ 5.15.*unaffected6.1.178 to ≤ 6.1.*unaffected6.6.145 to ≤ 6.6.*unaffected6.12.96 to ≤ 6.12.*unaffected6.18.39 to ≤ 6.18.*unaffected7.1.4 to ≤ 7.1.*unaffected7.2 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/3ae0577d3be9f1e2707cce4749da250054e25e3f ↗
- https://git.kernel.org/stable/c/889ca6000ac7fa73457b041848fcb08e0d51b809 ↗
- https://git.kernel.org/stable/c/1a52a05471494546f955a58e8c170c0c796c52d5 ↗
- https://git.kernel.org/stable/c/0406d746574e875d8778552eb674fcfbf5330bfb ↗
- https://git.kernel.org/stable/c/0970dd47726a57e52013594e9fbf667586eb3673 ↗
- https://git.kernel.org/stable/c/04f612dc03427e0b1ac80a2611b5ac0ba93ac446 ↗
- https://git.kernel.org/stable/c/7e7741c8315e4160aead00a60cdd6f81ab880717 ↗
- https://git.kernel.org/stable/c/f9654207e92283e0acac5d64fe5f8835383b5a23 ↗