In FreeBSD 12.2-STABLE before r368250, 11.4-STABLE before r368253, 12.2-RELEASE before p1, 12.1-RELEASE before p11 and 11.4-RELEASE before p5 rtsold(8) does not verify that the RDNSS option does not extend past the end of the received packet before processing its contents. While the kernel currently ignores such malformed packets, it passes them to userspace programs. Any programs expecting the kernel to do validation may be vulnerable to an overflow.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HFreebsd
OSFreebsd11.412.112.2
Related vulnerabilities
Several encoding modules, including HZ, UTF-7, VIQR, and ZW, did not properly check the size of the caller-sup...
The ISO-2022 encoding module used a stack buffer sized to MB_LEN_MAX (6 bytes) for intermediate character outp...
FreeBSD UMTX_SHM_DESTROY: use-after-free umożliwiający RCE lub ucieczkę z sandboxa
RCE w implementacji NFS w OpenBSD i FreeBSD — zdalne wykonanie kodu
FreeBSD: przepełnienie bufora w obsłudze beacon 802.11s prowadzące do RCE