CVEvulnerability

CVE-2017-8284

7.0 HIGH Published 2017-04-26 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2017-04-26
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.0 ([email protected])
7.0 HIGH — CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
6.9 MEDIUM — AV:L/AC:M/Au:N/C:C/I:C/A:C
Weaknesses
CWE-94

Description

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.

Affected configurations

• qemu qemu (<= 2.8.1.1)

Related

Weakness · CWE (1)

  • CWE-94 Improper Control of Generation of Code weakness

References