diff options
Diffstat (limited to 'results/classifier/111/review/786211')
| -rw-r--r-- | results/classifier/111/review/786211 | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/results/classifier/111/review/786211 b/results/classifier/111/review/786211 new file mode 100644 index 00000000..9e23d3f1 --- /dev/null +++ b/results/classifier/111/review/786211 @@ -0,0 +1,37 @@ +semantic: 0.460 +graphic: 0.237 +other: 0.072 +device: 0.044 +socket: 0.041 +vnc: 0.031 +debug: 0.021 +network: 0.018 +permissions: 0.017 +boot: 0.017 +files: 0.015 +performance: 0.013 +PID: 0.011 +KVM: 0.004 +debug: 0.344 +files: 0.133 +other: 0.131 +device: 0.074 +PID: 0.053 +performance: 0.049 +permissions: 0.046 +semantic: 0.042 +network: 0.036 +KVM: 0.025 +boot: 0.020 +socket: 0.018 +graphic: 0.015 +vnc: 0.014 + +Missing checks for valid, writable, firmware in fw_cfg_write + +The `fw_cfg_write` function in the firmware emulation is missing checks to ensure that the firmware being written is (a) a valid index, and (b) writable. This can lead to a segmentation fault and potentially (in the case of writing to FW_CFG_INVALID), memory corruption, although the attacker has fairly limited control over whether and what corruption is possible. + + + +fw_cfg_write() support has been removed since QEMU 2.4, so I think we can treat this as fixed now: http://git.qemu.org/?p=qemu.git;a=commitdiff;h=023e3148567ac898c725813 + |