cbcvebase.
CVE-2017-12972
published 2017-08-20

CVE-2017-12972: In Nimbus JOSE+JWT before 4.39, there is no integer-overflow check when converting length values from bytes to bits, which allows attackers to conduct HMAC…

PriorityP432high7.5CVSS 3.0
AVNACLPRNUINSUCNIHAN
EPSS
0.89%
55.1th percentile
In Nimbus JOSE+JWT before 4.39, there is no integer-overflow check when converting length values from bytes to bits, which allows attackers to conduct HMAC bypass attacks by shifting Additional Authenticated Data (AAD) and ciphertext so that different plaintext is obtained for the same HMAC.

Affected

127 ranges· showing 25
VendorProductVersion rangeFixed in
connect2idnimbus_jose_+jwt——
connect2idnimbus_jose_+jwt——
connect2idnimbus_jose_+jwt——
connect2idnimbus_jose_+jwt——
connect2idnimbus_jose_+jwt——
connect2idnimbus_jose_+jwt——
connect2idnimbus_jose_+jwt——
connect2idnimbus_jose_+jwt——
connect2idnimbus_jose_+jwt——
connect2idnimbus_jose_+jwt——
connect2idnimbus_jose_+jwt——
connect2idnimbus_jose_+jwt——
connect2idnimbus_jose_+jwt——
connect2idnimbus_jose_+jwt——
connect2idnimbus_jose_+jwt——
connect2idnimbus_jose_+jwt——
connect2idnimbus_jose_+jwt——
connect2idnimbus_jose_+jwt——
connect2idnimbus_jose_+jwt——
connect2idnimbus_jose_+jwt——
connect2idnimbus_jose_+jwt——
connect2idnimbus_jose_+jwt——
connect2idnimbus_jose_+jwt——
connect2idnimbus_jose_+jwt——
connect2idnimbus_jose_+jwt——

CVSS provenance

nvdv3.07.5HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:P/A:N
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