Open actionable advisories and recorded vendor fixes. This public package view has no inventory attached and cannot establish whether your deployment is affected. A vendor fix never resolves your finding; verify your installed version and the source guidance.
Open advisories
2 actionable advisories, newest first. Withdrawn advisories and news are excluded. Coverage is partial.
Versions of the package fastecdsa before 2.3.2 use an Uninitialized Variable on the stack, via the curvemathmul function in src/curveMath.c, due to being used and interpreted as user-defined type. Depending on the variable's actual value it could be arbitrary free(), arbitrary realloc(), null pointer dereference and other. Since the stack can be controlled by the attacker, the vulnerability could be used to corrupt allocator structure, leading to possible heap exploitation. The attacker could cause denial of service by exploiting this vulnerability.
Recommended action: Upgrade to 2.3.2 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.
An issue was discovered in fastecdsa before 2.1.2. When using the NIST P-256 curve in the ECDSA implementation, the point at infinity is mishandled. This means that for an extreme value in k and s<sup-1</sup, the signature verification fails even if the signature is correct. This behavior is not solely a usability problem. There are some threat models where an attacker can benefit by successfully guessing users for whom signature verification will fail.
Recommended action: Upgrade to 2.1.2 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.