In the Linux kernel, the following vulnerability has been resolved:
wifi: rtl818x: rtl8187: Fix potential buffer underflow in rtl8187_rx_cb()
The rtl8187_rx_cb() calculates the rx descriptor header address
by subtracting its size from the skb tail pointer.
However, it does not validate if the received packet
(skb->len from urb->actual_length) is large enough to contain this
header.
If a truncated packet is received, this will lead to a buffer
underflow, reading memory before the start of the skb data area,
and causing a kernel panic.
Add length checks for both rtl8187 and rtl8187b descriptor headers
before attempting to access them, dropping the packet cleanly if the
check fails.
from 6f7853f3cbe457067e9fe05461f56c7ea4ac488c before 118e12bf3e4288cf845cd3759bd9d4c99f91aab5; 6f7853f3cbe457067e9fe05461f56c7ea4ac488c builds before 6a96bd0d94305fd04a6ac64446ec113bae289384; from 6f7853f3cbe457067e9fe05461f56c7ea4ac488c before e2f3ea15e804607e0a4a34a2f6c331c8750b68bc; from 6f7853f3cbe457067e9fe05461f56c7ea4ac488c before dc153401fb26c1640a2b279c47b65e1c416af276; from 6f7853f3cbe457067e9fe05461f56c7ea4ac488c before 4758770a673c60d8f615809304d72e1432fa6355; from 6f7853f3cbe457067e9fe05461f56c7ea4ac488c before 638d4148e166d114a4cd7becaae992ce1a815ed8; 6f7853f3cbe457067e9fe05461f56c7ea4ac488c builds before 5ebf0fe7eaef9f6173a4c6ea77c5353e21645d15; from 6f7853f3cbe457067e9fe05461f56c7ea4ac488c before b647d2574e4583c2e3b0ab35568f60c88e910840
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.
Printed from infosecsignals.com. Every record links back to the agency that published it.
Your cookie choices
We use essential cookies to run this site, and, only with your consent, an advertising cookie from Google to measure whether our ads lead to sign-ups and subscriptions. See our for details.
