CVE-2020-10702

Description

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.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.04%
Third-Party Advisory redhat.com Third-Party Advisory netapp.com
Affected: The QEMU Project qemu
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10702 issue tracking third party advisory
https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=de0b1bae6461f67243282555475f88b2384a1eb9
https://security.netapp.com/advisory/ntap-20200724-0007/ third party advisory

Frequently Asked Questions

What is the severity of CVE-2020-10702?
CVE-2020-10702 has been scored as a medium severity vulnerability.
How to fix CVE-2020-10702?
To fix CVE-2020-10702, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-10702 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-10702 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-10702?
CVE-2020-10702 affects The QEMU Project qemu.
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