VDB
CVE-2020-10702
CVE-2020-10702
PUBLISHED
CVSS 5.5 MEDIUM
A flaw was found in QEMU in the implementation of the Pointer Authentication (PAuth) support for ARM introduced in version 4.0 and fixed in version 5.0.0. A general failure of the signature generation process caused every PAuth-enforced pointer to be signed with the same signature. A local attacker could obtain the signature of a protected pointer and abuse this flaw to bypass PAuth protection for all programs running on QEMU.
EPSS 0.33% · 23.7th percentile
Risk Scores
CVSS 3.1
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS Score
0.33%
23.7th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:20.04:LTS | qemu | 0, 1:4.0+dfsg-0ubuntu9, 1:4.0+dfsg-0ubuntu10 |
Timeline
- Apr 13, 2020 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 25, 2021 EPSS Score
- Oct 27, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Mar 2, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 4, 2022 EPSS Score
- Jul 6, 2022 EPSS Score
- Sep 7, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2020-10702 third-party-advisory
- https://ubuntu.com/security/notices/USN-4372-1 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2020-10702 third-party-advisory