Vulnerability Details : CVE-2020-25084
QEMU 5.0.0 has a use-after-free in hw/usb/hcd-xhci.c because the usb_packet_map return value is not checked.
Vulnerability category: Memory Corruption
Products affected by CVE-2020-25084
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:5.0.0:-:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-25084
0.02%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 4 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-25084
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
2.1
|
LOW | AV:L/AC:L/Au:N/C:N/I:N/A:P |
3.9
|
2.9
|
NIST | |
3.2
|
LOW | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L |
1.5
|
1.4
|
NIST |
CWE ids for CVE-2020-25084
-
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-25084
-
http://www.openwall.com/lists/oss-security/2020/09/16/5
oss-security - CVE-2020-25084 QEMU: usb: use-after-free issue while setting up packetMailing List;Patch;Third Party Advisory
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https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html
[SECURITY] [DLA 3099-1] qemu security updateMailing List;Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2021/02/msg00024.html
[SECURITY] [DLA 2560-1] qemu security updateMailing List;Third Party Advisory
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https://security.netapp.com/advisory/ntap-20201009-0005/
October 2020 QEMU Vulnerabilities in NetApp Products | NetApp Product SecurityThird Party Advisory
-
https://lists.nongnu.org/archive/html/qemu-devel/2020-08/msg08050.html
[PULL 01/18] hw: xhci: check return value of 'usb_packet_map'Mailing List;Patch;Third Party Advisory
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