CVE-2024-34360CWE-754

Previous ATX is not checked to be the newest valid ATX by Smesher when validating incoming ATX

High · published May 10, 2024

CVSS v3.1
8.2
EPSS
1%
Percentile
53.9
In the wild
Unconfirmed
What it is

go-spacemesh is a Go implementation of the Spacemesh protocol full node. Nodes can publish activations transactions (ATXs) which reference the incorrect previous ATX of the Smesher that created the ATX. ATXs are expected to form a single chain from the newest to the first ATX ever published by an identity. Allowing Smeshers to reference an earlier (but not the latest) ATX as previous breaks this protocol rule and can serve as an attack vector where Nodes are rewarded for holding their PoST data for less than one epoch but still being eligible for rewards. This vulnerability is fixed in go-spacemesh 1.5.2-hotfix1 and Spacemesh API 1.37.1.

The record
Technical detail
CVSS v3.1
8.2 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00734 · 53.9th percentile
Weakness
CWE-754 · Improper Check for Unusual or Exceptional Conditions
Published
2024-05-10T15:50Z
EPSS history
Timeline
  • 10 MAY 15:50Z
    Previous ATX is not checked to be the newest valid ATX by Smesher when validating incoming ATX
    cvelistv5