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CVE-2017-14737

Published: 26 September 2017

A cryptographic cache-based side channel in the RSA implementation in Botan before 1.10.17, and 1.11.x and 2.x before 2.3.0, allows a local attacker to recover information about RSA secret keys, as demonstrated by CacheD. This occurs because an array is indexed with bits derived from a secret key.

From the Ubuntu Security Team

It was discovered that Botan did not properly implement RSA. An attacker could possibly use this to perform a side-channel attack and recover information about RSA secret keys.

Priority

Medium

Cvss 3 Severity Score

5.5

Score breakdown

Status

Package Release Status
botan1.10
Launchpad, Ubuntu, Debian
artful Ignored
(end of life)
bionic Not vulnerable
(1.10.17-0.1)
cosmic Not vulnerable
(1.10.17-0.1)
disco Does not exist

eoan Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

mantic Does not exist

noble Does not exist

trusty
Released (1.10.5-1+deb7u1ubuntu0.14.04.1+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
upstream
Released (1.10.5-1+deb7u4, 1.10.17-0.1)
xenial Needed

zesty Ignored
(end of life)

Severity score breakdown

Parameter Value
Base score 5.5
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N