qemu_deliver_packet_iov in net/net.c in Qemu accepts packet sizes greater than INT_MAX, which allows attackers to cause a denial of service or possibly have unspecified other impact.
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
| Link | Tags |
|---|---|
| http://www.openwall.com/lists/oss-security/2018/10/08/1 | third party advisory mailing list |
| https://www.debian.org/security/2018/dsa-4338 | third party advisory vendor advisory |
| https://lists.gnu.org/archive/html/qemu-devel/2018-09/msg03267.html | mailing list third party advisory patch |
| https://usn.ubuntu.com/3826-1/ | third party advisory vendor advisory |
| https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html | third party advisory mailing list |
| https://lists.gnu.org/archive/html/qemu-devel/2018-11/msg06054.html | mailing list third party advisory patch |
| https://access.redhat.com/errata/RHSA-2019:2166 | third party advisory vendor advisory |
| https://access.redhat.com/errata/RHSA-2019:2425 | third party advisory vendor advisory |
| https://access.redhat.com/errata/RHSA-2019:2553 | third party advisory vendor advisory |