CVE-2018-12437
libtomcrypt1: LibTomCrypt through 1.18.1 allows a memory-cache side-channel attack on ECDSA signatures, aka the Return Of the Hidde...
CVE-2018-12437 is fixed in libtomcrypt1 on 1 platform by libtomcrypt1 1.18.1-1ubuntu0.1 (version 1.18.1-1ubuntu0.1), released June 14, 2018. It is not reported as exploited. Patch Radar priority: Routine.
Routine
CVSS
n/a
Medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0054
45th percentile
LibTomCrypt through 1.18.1 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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| libtomcrypt1 · Ubuntu 18.04.6 LTS (bionic) | 1.18.1-1ubuntu0.1 | libtomcrypt1 1.18.1-1ubuntu0.1 | Jun 14, 2018 |