CVE-2020-15859

Published: Jul 21, 2020Modified: Nov 21, 2024

3.3

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Exploitability: 1.8 / Impact: 1.4

Source: NVD

Description

QEMU 4.2.0 has a use-after-free in hw/net/e1000e_core.c because a guest OS user can trigger an e1000e packet with the data's address set to the e1000e's MMIO address.

Affected (3)

Products: Qemu: Qemu · Debian: Debian Linux

1 product

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Qemu Qemu	Version 4.2.0

Configuration B

2 vulnerable

Vulnerable Software	Affected Versions
Debian Debian Linux	Version 10.0
Debian Debian Linux	Version 9.0

Related CWEs

CWE-416

Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (12)

https://bugs.launchpad.net/qemu/+bug/1886362

Source: cve@mitre.org

ExploitIssue TrackingThird Party Advisory

https://lists.debian.org/debian-lts-announce/2021/02/msg00024.html

Source: cve@mitre.org

Mailing ListThird Party Advisory

https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html

Source: cve@mitre.org

Mailing ListThird Party Advisory

https://lists.gnu.org/archive/html/qemu-devel/2020-07/msg05304.html

Source: cve@mitre.org

Mailing ListPatchThird Party Advisory

https://security.gentoo.org/glsa/202208-27

Source: cve@mitre.org

Third Party Advisory

https://www.openwall.com/lists/oss-security/2020/07/21/3

Source: cve@mitre.org

Mailing ListPatchThird Party Advisory

https://bugs.launchpad.net/qemu/+bug/1886362