The DNS stub resolver in the GNU C Library (aka glibc or libc6) before version 2.26, when EDNS support is enabled, will solicit large UDP responses from name servers, potentially simplifying off-path DNS spoofing attacks due to IP fragmentation.
Platform | Package | Release Date | Advisory |
---|---|---|---|
Amazon Linux 1 | glibc | 2018-05-10 17:45 | ALAS-2018-1017 |
Score Type | Score | Vector | |
---|---|---|---|
Amazon Linux | CVSSv3 | 3.0 | CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:C/C:N/I:L/A:N |
NVD | CVSSv2 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
NVD | CVSSv3 | 5.9 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N |