CVE-2020-14364
MEDIUM 5.0EPSS 5.4%
An out-of-bounds read/write access flaw was found in the USB emulator of the QEMU in versions before 5.2.0. This issue occurs while processing USB packets from a guest when USBDevice 'setup_len' exceeds its 'data_buf[4096]' in the do_token_in, do_token_out routines. This flaw allows a guest user to crash the QEMU process, resulting in a denial of service, or the potential execution of arbitrary code with the privileges of the QEMU process on the host.
- Affected
- QEMU
- CVSS v3.1 NVD
- 5.0 MEDIUM
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L - CVSS v2.0 NVD
- 4.4 MEDIUM
AV:L/AC:M/Au:N/C:P/I:P/A:P - EPSS
- 5.40% chance of exploitation in the next 30 days, 93rd percentile
- Published
- 2020-08-31
- Updated
- 2024-08-04
Proof-of-concept exploits (3)
- gejian-iscas/CVE-2020-143643★ · 2021-04-20
- xtxtn/vnctf2024-escape_langlang_mountain2wp0★ · 2024-02-18
- y-f00l/CVE-2020-143641★ · 2021-08-13
Security advisories
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00024.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1869201
- https://lists.debian.org/debian-lts-announce/2020/09/msg00013.html
- https://security.gentoo.org/glsa/202009-14
- https://security.gentoo.org/glsa/202011-09
- https://security.netapp.com/advisory/ntap-20200924-0006
- https://usn.ubuntu.com/4511-1
- https://www.debian.org/security/2020/dsa-4760
- https://www.openwall.com/lists/oss-security/2020/08/24/2
- https://www.openwall.com/lists/oss-security/2020/08/24/3