CVE-2020-13765
rom_copy() in hw/core/loader.c in QEMU 4.0 and 4.1.0 does not validate the relationship between two addresses, which allows attackers to trigger an invalid memory copy operation.
Does this matter?
Lower severity and a low EPSS score (2.46%). Track it; it rarely justifies an emergency change on its own.
Description
rom_copy() in hw/core/loader.c in QEMU 4.0 and 4.1.0 does not validate the relationship between two addresses, which allows attackers to trigger an invalid memory copy operation.
- CVSS 3.1
- 5.6 MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
- EPSS
- 2.46% probability · 84th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- qemu/qemu · canonical/ubuntu linux · debian/debian linux
- Source
- cve@mitre.org
EPSS 2.5% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=e423455c4f23a1a828901c78fe6d03b7dde79319
- https://github.com/qemu/qemu/commit/4f1c6cb2f9afafda05eab150fd2bd284edce6676Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/06/msg00032.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/07/msg00020.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20200619-0006/Third Party Advisory
- https://usn.ubuntu.com/4467-1/Third Party Advisory
- https://www.openwall.com/lists/oss-security/2020/06/03/6Mailing List, Third Party Advisory
- https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=e423455c4f23a1a828901c78fe6d03b7dde79319
- https://github.com/qemu/qemu/commit/4f1c6cb2f9afafda05eab150fd2bd284edce6676Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/06/msg00032.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/07/msg00020.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20200619-0006/Third Party Advisory
- https://usn.ubuntu.com/4467-1/Third Party Advisory
- https://www.openwall.com/lists/oss-security/2020/06/03/6Mailing List, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.