diff options
Diffstat (limited to 'gitlab/issues/target_missing/host_missing/accel_missing/782.toml')
| -rw-r--r-- | gitlab/issues/target_missing/host_missing/accel_missing/782.toml | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/gitlab/issues/target_missing/host_missing/accel_missing/782.toml b/gitlab/issues/target_missing/host_missing/accel_missing/782.toml new file mode 100644 index 000000000..920d214eb --- /dev/null +++ b/gitlab/issues/target_missing/host_missing/accel_missing/782.toml @@ -0,0 +1,17 @@ +id = 782 +title = "nvme: DMA reentrancy issue leads to use-after-free (CVE-2021-3929)" +state = "closed" +created_at = "2021-12-17T09:33:18.851Z" +closed_at = "2022-03-18T18:59:49.094Z" +labels = ["Fuzzer", "Security", "Storage"] +url = "https://gitlab.com/qemu-project/qemu/-/issues/782" +host-os = "n/a" +host-arch = "n/a" +qemu-version = "n/a" +guest-os = "n/a" +guest-arch = "n/a" +description = """A DMA reentrancy issue was found in the NVM Express Controller (NVMe) emulation. Functions dma_buf_write() or dma_buf_read() in hw/nvme/ctrl.c:nvme_tx() can be called without checking if the destination region overlaps with device's MMIO. This is similar to CVE-2021-3750 (https://gitlab.com/qemu-project/qemu/-/issues/541) and, just like it, when the reentrancy write triggers the reset function nvme_ctrl_reset(), data structs will be freed leading to a use-after-free issue. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition or, potentially, executing arbitrary code within the context of the QEMU process on the host. + +This issue was reported by Qiuhao Li.""" +reproduce = "n/a" +additional = "n/a" |