CVE-2017-8284

2022-10-0316:23:07

mitre

www.cve.org

qemu

disas_insn function

local users

privileges

code injection

setuid program

7.3 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.1%

JSON

The disas_insn function in target/i386/translate.c in QEMU before 2.9.0, when TCG mode without hardware acceleration is used, does not limit the instruction size, which allows local users to gain privileges by creating a modified basic block that injects code into a setuid program, as demonstrated by procmail. NOTE: the vendor has stated "this bug does not violate any security guarantees QEMU makes.