CVE-2018-12437 — Sensitive Information Exposure in Libtomcrypt

CWE-200 — Sensitive Information ExposureCWE-385 — Covert Timing ChannelCWE-352 — Cross-Site Request Forgery8 documents6 sources
Severity
4.9MEDIUMNVD
EPSS
0.1%
top 75.95%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
5
LibtomcryptSilverstripe GraphqlDebian Libtomcrypt+2 more
Timeline
PublishedJun 15
Latest updateMay 24

Description

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.

CVSS vector

CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:NExploitability: 0.5 | Impact: 4.0

Affected Packages5 packages

▶debiandebian/libtomcrypt< libtomcrypt 1.18.2-1 (bookworm)
▶Debianlibtomcrypt/libtomcrypt< 1.18.2-1+3
▶NVDlibtom/libtomcrypt1.18.1
▶Packagistsilverstripe/graphql2.0.0 — 2.0.5+1
▶NVDlinaro/op-tee3.5.0

🔴Vulnerability Details

2
GHSA
Silverstripe CSRF Protection Bypass via GraphQL↗2022-05-24
▶
OSV
CVE-2018-12437: LibTomCrypt through 1↗2018-06-15
▶

📋Vendor Advisories

2
Red Hat
libtomcrypt: memory-cache side-channel attack on ECDSA signatures↗2018-06-13
▶
Debian
CVE-2018-12437: libtomcrypt - LibTomCrypt through 1.18.1 allows a memory-cache side-channel attack on ECDSA si...↗2018
▶

💬Community

3
Bugzilla
CVE-2018-0495 CVE-2018-12437 libtomcrypt: various flaws [epel-all]↗2018-06-15
▶
Bugzilla
CVE-2018-12437 libtomcrypt: memory-cache side-channel attack on ECDSA signatures↗2018-06-15
▶
Bugzilla
CVE-2018-0495 CVE-2018-12437 libtomcrypt: various flaws [fedora-all]↗2018-06-15
▶
CVE-2018-12437 — Sensitive Information Exposure | cvebase