DescriptionThe Elliptic Curve Cryptography library (aka sunec or libsunec) allows a memory-cache side-channel attack on ECDSA signatures, aka the Return Of the Hidden Number Problem or ROHNP. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severitylow (attack range: local)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
openjdk-11 (PTS)buster11.0.3+1-1undetermined
openjdk-7 (PTS)jessie7u181-2.6.14-1~deb8u1fixed
jessie (security)7u211-2.6.17-1~deb8u1fixed
openjdk-8 (PTS)stretch8u181-b13-2~deb9u1undetermined
stretch (security)8u212-b01-1~deb9u1undetermined

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
openjdk-7source(unstable)(not affected)


- openjdk-7 <not-affected> (Didn't include/build sunec, see #750400)

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