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CVE-2019-13627

Published: 25 September 2019

It was discovered that there was a ECDSA timing attack in the libgcrypt20 cryptographic library. Version affected: 1.8.4-5, 1.7.6-2+deb9u3, and 1.6.3-2+deb8u4. Versions fixed: 1.8.5-2 and 1.6.3-2+deb8u7.

Notes

AuthorNote
leosilva
patch breaks dsa-rfc6979.c tests in Xenial.

Priority

Medium

Cvss 3 Severity Score

6.3

Score breakdown

Status

Package Release Status
libgcrypt20
Launchpad, Ubuntu, Debian
upstream
Released (1.8.5-1)
trusty Does not exist

xenial
Released (1.6.5-2ubuntu0.6)
bionic
Released (1.8.1-4ubuntu1.2)
disco
Released (1.8.4-3ubuntu1.1)
eoan
Released (1.8.4-5ubuntu2.1)
Patches:
upstream: https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=b9577f7c89b4327edc09f2231bc8b31521102c79 (master)
upstream: https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=7c2943309d14407b51c8166c4dcecb56a3628567 (master)
upstream: https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=d5407b78cca9f9d318a4f4d2f6ba2b8388584cd9 (1.8.5)
upstream: https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=db4e9976cc31b314aafad6626b2894e86ee44d60 (1.8.5)
libgcrypt11
Launchpad, Ubuntu, Debian
upstream Needs triage

trusty
Released (1.5.3-2ubuntu4.6+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
xenial Does not exist

bionic Does not exist

disco Does not exist

eoan Does not exist

Severity score breakdown

Parameter Value
Base score 6.3
Attack vector Local
Attack complexity High
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact None
Vector CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N