CVE-2017-8284 — Code Injection in Qemu

CWE-94 — Code Injection7 documents6 sources
Severity
7.0HIGHNVD
EPSS
0.1%
top 71.04%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
QemuDebian Qemu
Timeline
PublishedApr 26
Latest updateMay 13

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.

CVSS vector

CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.0 | Impact: 5.9

Affected Packages3 packages

▶debiandebian/qemu< qemu 1:2.10.0-1 (bookworm)
▶Debianqemu/qemu< 1:2.10.0-1+3
▶NVDqemu/qemu2.8.1.1

Patches

Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

2
GHSA
GHSA-rw7x-4625-rjj4: ** DISPUTED ** The disas_insn function in target/i386/translate↗2022-05-13
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OSV
CVE-2017-8284: The disas_insn function in target/i386/translate↗2017-04-26
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📋Vendor Advisories

2
Red Hat
QEMU: privilege escalation via disas_insn function in TCG mode↗2019-10-02
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Debian
CVE-2017-8284: qemu - The disas_insn function in target/i386/translate.c in QEMU before 2.9.0, when TC...↗2017
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💬Community

2
Bugzilla
CVE-2017-8284 QEMU: privilege escalation via disas_insn function in TCG mode↗2019-11-07
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Bugzilla
CVE-2017-8284 qemu: privilege escalation via disas_insn function in TCG mode [epel-7]↗2019-11-07
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