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CVE-2020-10702 PUBLISHED

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 0.04% · 10.5th percentile

Risk Scores

EPSS Score
0.04%
10.5th percentile

Affected Products

VendorProductVersions
Ubuntu:20.04:LTSqemu0, 1:4.0+dfsg-0ubuntu9, 1:4.0+dfsg-0ubuntu10

Timeline

References

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