Vulnerability-Lookup

BDU:2019-00510 (CVE-2018-0495)

Vulnerability from fstec – Published: 2019-02-07 – Updated: 2021-03-23 – View on bdu.fstec.ru Exploit publicly available Fixed

Title

Уязвимость функции _gcry_ecc_ecdsa_sign криптографической библиотеки Libgcrypt, позволяющая нарушителю получить несанкционированный доступ к защищаемой информации

Summary

Уязвимость функции _gcry_ecc_ecdsa_sign («cipher/ecc-ecdsa.c») криптографической библиотеки Libgcrypt связана с возможностью подбора вероятных значений базовых параметров очередной цифровой подписи путем перебора значений кэша и оценки времени выполнения математических вычислений, что может позволить воссоздать применяемые для создания цифровой подписи закрытые ключи ECDSA и DSA. Эксплуатация уязвимости может позволить нарушителю, обладающему доступом к локальной машине, либо к другой виртуальной машине на том же физическом узле, получить несанкционированный доступ к защищаемой информации

Severity

4.7 (Medium) CVSS 2.0


                      
                        AV:L/AC:M/Au:N/C:C/I:N/A:N

4.7 (Medium) CVSS 3.0


                      
                        CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Class

Code vulnerability

Status

Confirmed by the vendor

Exploitation

Information gathering

Incidents

Being clarified

Remediation

Software update

CWE

CWE-200 - Раскрытие информации

Aliases

CVE-2018-0495

References

17 references

URL
http://www.securitytracker.com/id/1041144
http://www.securitytracker.com/id/1041147
https://access.redhat.com/errata/RHSA-2018:3221
https://access.redhat.com/errata/RHSA-2018:3505
https://dev.gnupg.org/T4011
https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=9010d1576e2…
https://lists.debian.org/debian-lts-announce/2018/06/msg00013.html
https://lists.gnupg.org/pipermail/gnupg-announce/2018q2/000426.html
https://usn.ubuntu.com/3689-1/
https://usn.ubuntu.com/3689-2/
https://usn.ubuntu.com/3692-1/
https://usn.ubuntu.com/3692-2/
https://usn.ubuntu.com/3850-1/
https://usn.ubuntu.com/3850-2/
https://www.debian.org/security/2018/dsa-4231
https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hid…
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html

Impacted products

6 products from 6 vendors

Vendors

Canonical Ltd., ООО «РусБИТех-Астра», Werner Koch, Oracle Corp., Сообщество свободного программного обеспечения, ООО «Юбитех»

Products

Ubuntu, Astra Linux Special Edition (запись в едином реестре российских программ №369), Libgcrypt, Oracle Traffic Director, Debian GNU/Linux, UBLinux (запись в едином реестре российских программ №6874)

Versions

14.04 LTS (Ubuntu), 16.04 LTS (Ubuntu), 17.10 (Ubuntu), 18.04 LTS (Ubuntu), 1.6 «Смоленск» (Astra Linux Special Edition), до 1.7.10 (Libgcrypt), от 1.8.0 до 1.8.3 (Libgcrypt), 12.04 ESM (Ubuntu), 11.1.1.9.0 (Oracle Traffic Director), 8 (Debian GNU/Linux), до 21.1 (UBLinux)

Product types

Operating system, Security software, Network software

Platforms

Canonical Ltd. Ubuntu 14.04 LTS, Canonical Ltd. Ubuntu 16.04 LTS, Canonical Ltd. Ubuntu 17.10, Canonical Ltd. Ubuntu 18.04 LTS, ООО «РусБИТех-Астра» Astra Linux Special Edition 1.6 «Смоленск» (запись в едином реестре российских программ №369), Canonical Ltd. Ubuntu 12.04 ESM, Сообщество свободного программного обеспечения Debian GNU/Linux 8, ООО «Юбитех» UBLinux до 21.1 (запись в едином реестре российских программ №6874)

Mitigations

Использование рекомендаций: Для Libgcrypt: Обновление программного обеспечения до 1.8.3 или более поздней версии Для Astra Linux: Обновление программного обеспечения (пакета libgcrypt20) до 1.6.3-2+deb8u5 или более поздней версии Для Debian GNU/Linux: https://lists.debian.org/debian-lts-announce/2018/06/msg00013.html Для Ubuntu: https://usn.ubuntu.com/3689-1/ https://usn.ubuntu.com/3689-2/ Для программных продуктов Oracle Corp.: https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html Для UBLinux: https://security.ublinux.ru/ASA-201806-10/generate

JSON

To clipboard

{
  "CVSS 2.0": "AV:L/AC:M/Au:N/C:C/I:N/A:N",
  "CVSS 3.0": "AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
  "CVSS 4.0": null,
  "remediation_\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": null,
  "remediation_\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435": null,
  "\u0412\u0435\u043d\u0434\u043e\u0440 \u041f\u041e": "Canonical Ltd., \u041e\u041e\u041e \u00ab\u0420\u0443\u0441\u0411\u0418\u0422\u0435\u0445-\u0410\u0441\u0442\u0440\u0430\u00bb, Werner Koch, Oracle Corp., \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f, \u041e\u041e\u041e \u00ab\u042e\u0431\u0438\u0442\u0435\u0445\u00bb",
  "\u0412\u0435\u0440\u0441\u0438\u044f \u041f\u041e": "14.04 LTS (Ubuntu), 16.04 LTS (Ubuntu), 17.10 (Ubuntu), 18.04 LTS (Ubuntu), 1.6 \u00ab\u0421\u043c\u043e\u043b\u0435\u043d\u0441\u043a\u00bb (Astra Linux Special Edition), \u0434\u043e 1.7.10 (Libgcrypt), \u043e\u0442 1.8.0 \u0434\u043e 1.8.3 (Libgcrypt), 12.04 ESM (Ubuntu), 11.1.1.9.0 (Oracle Traffic Director), 8 (Debian GNU/Linux), \u0434\u043e 21.1 (UBLinux)",
  "\u0412\u043e\u0437\u043c\u043e\u0436\u043d\u044b\u0435 \u043c\u0435\u0440\u044b \u043f\u043e \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044e": "\u0418\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0439: \n\u0414\u043b\u044f Libgcrypt:\n\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f \u0434\u043e 1.8.3 \u0438\u043b\u0438 \u0431\u043e\u043b\u0435\u0435 \u043f\u043e\u0437\u0434\u043d\u0435\u0439 \u0432\u0435\u0440\u0441\u0438\u0438\n\n\u0414\u043b\u044f Astra Linux:\n\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f (\u043f\u0430\u043a\u0435\u0442\u0430 libgcrypt20) \u0434\u043e 1.6.3-2+deb8u5 \u0438\u043b\u0438 \u0431\u043e\u043b\u0435\u0435 \u043f\u043e\u0437\u0434\u043d\u0435\u0439 \u0432\u0435\u0440\u0441\u0438\u0438\n\n\u0414\u043b\u044f Debian GNU/Linux:\nhttps://lists.debian.org/debian-lts-announce/2018/06/msg00013.html \n\n\u0414\u043b\u044f Ubuntu:\nhttps://usn.ubuntu.com/3689-1/ \nhttps://usn.ubuntu.com/3689-2/ \n\n\u0414\u043b\u044f \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u044b\u0445 \u043f\u0440\u043e\u0434\u0443\u043a\u0442\u043e\u0432 Oracle Corp.:\nhttps://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html\n\n\u0414\u043b\u044f UBLinux:\nhttps://security.ublinux.ru/ASA-201806-10/generate",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "13.06.2018",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "23.03.2021",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "07.02.2019",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2019-00510",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440\u044b \u0434\u0440\u0443\u0433\u0438\u0445 \u0441\u0438\u0441\u0442\u0435\u043c \u043e\u043f\u0438\u0441\u0430\u043d\u0438\u0439 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "CVE-2018-0495",
  "\u0418\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f \u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430",
  "\u041a\u043b\u0430\u0441\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043a\u043e\u0434\u0430",
  "\u041d\u0430\u0437\u0432\u0430\u043d\u0438\u0435 \u041f\u041e": "Ubuntu, Astra Linux Special Edition (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u2116369), Libgcrypt, Oracle Traffic Director, Debian GNU/Linux, UBLinux (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u21166874)",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u041e\u0421 \u0438 \u0442\u0438\u043f \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u043e\u0439 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b": "Canonical Ltd. Ubuntu 14.04 LTS , Canonical Ltd. Ubuntu 16.04 LTS , Canonical Ltd. Ubuntu 17.10 , Canonical Ltd. Ubuntu 18.04 LTS , \u041e\u041e\u041e \u00ab\u0420\u0443\u0441\u0411\u0418\u0422\u0435\u0445-\u0410\u0441\u0442\u0440\u0430\u00bb Astra Linux Special Edition 1.6 \u00ab\u0421\u043c\u043e\u043b\u0435\u043d\u0441\u043a\u00bb  (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u2116369), Canonical Ltd. Ubuntu 12.04 ESM , \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Debian GNU/Linux 8 , \u041e\u041e\u041e \u00ab\u042e\u0431\u0438\u0442\u0435\u0445\u00bb UBLinux \u0434\u043e 21.1  (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u21166874)",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0444\u0443\u043d\u043a\u0446\u0438\u0438 _gcry_ecc_ecdsa_sign \u043a\u0440\u0438\u043f\u0442\u043e\u0433\u0440\u0430\u0444\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 Libgcrypt, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u043d\u0435\u0441\u0430\u043d\u043a\u0446\u0438\u043e\u043d\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0439 \u0434\u043e\u0441\u0442\u0443\u043f \u043a \u0437\u0430\u0449\u0438\u0449\u0430\u0435\u043c\u043e\u0439 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438",
  "\u041d\u0430\u043b\u0438\u0447\u0438\u0435 \u044d\u043a\u0441\u043f\u043b\u043e\u0439\u0442\u0430": "\u0421\u0443\u0449\u0435\u0441\u0442\u0432\u0443\u0435\u0442 \u0432 \u043e\u0442\u043a\u0440\u044b\u0442\u043e\u043c \u0434\u043e\u0441\u0442\u0443\u043f\u0435",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "\u0420\u0430\u0441\u043a\u0440\u044b\u0442\u0438\u0435 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438 (CWE-200)",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0444\u0443\u043d\u043a\u0446\u0438\u0438 _gcry_ecc_ecdsa_sign (\u00abcipher/ecc-ecdsa.c\u00bb) \u043a\u0440\u0438\u043f\u0442\u043e\u0433\u0440\u0430\u0444\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 Libgcrypt \u0441\u0432\u044f\u0437\u0430\u043d\u0430 \u0441 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c\u044e \u043f\u043e\u0434\u0431\u043e\u0440\u0430 \u0432\u0435\u0440\u043e\u044f\u0442\u043d\u044b\u0445 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0439 \u0431\u0430\u0437\u043e\u0432\u044b\u0445 \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u043e\u0432 \u043e\u0447\u0435\u0440\u0435\u0434\u043d\u043e\u0439 \u0446\u0438\u0444\u0440\u043e\u0432\u043e\u0439 \u043f\u043e\u0434\u043f\u0438\u0441\u0438 \u043f\u0443\u0442\u0435\u043c \u043f\u0435\u0440\u0435\u0431\u043e\u0440\u0430 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0439 \u043a\u044d\u0448\u0430 \u0438 \u043e\u0446\u0435\u043d\u043a\u0438 \u0432\u0440\u0435\u043c\u0435\u043d\u0438 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u043c\u0430\u0442\u0435\u043c\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u0432\u044b\u0447\u0438\u0441\u043b\u0435\u043d\u0438\u0439, \u0447\u0442\u043e \u043c\u043e\u0436\u0435\u0442 \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0442\u044c \u0432\u043e\u0441\u0441\u043e\u0437\u0434\u0430\u0442\u044c \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u043c\u044b\u0435 \u0434\u043b\u044f \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u044f \u0446\u0438\u0444\u0440\u043e\u0432\u043e\u0439 \u043f\u043e\u0434\u043f\u0438\u0441\u0438 \u0437\u0430\u043a\u0440\u044b\u0442\u044b\u0435 \u043a\u043b\u044e\u0447\u0438 ECDSA \u0438 DSA. \u042d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043c\u043e\u0436\u0435\u0442 \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0442\u044c \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e, \u043e\u0431\u043b\u0430\u0434\u0430\u044e\u0449\u0435\u043c\u0443 \u0434\u043e\u0441\u0442\u0443\u043f\u043e\u043c \u043a \u043b\u043e\u043a\u0430\u043b\u044c\u043d\u043e\u0439 \u043c\u0430\u0448\u0438\u043d\u0435, \u043b\u0438\u0431\u043e \u043a \u0434\u0440\u0443\u0433\u043e\u0439 \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u044c\u043d\u043e\u0439 \u043c\u0430\u0448\u0438\u043d\u0435 \u043d\u0430 \u0442\u043e\u043c \u0436\u0435 \u0444\u0438\u0437\u0438\u0447\u0435\u0441\u043a\u043e\u043c \u0443\u0437\u043b\u0435, \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u043d\u0435\u0441\u0430\u043d\u043a\u0446\u0438\u043e\u043d\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0439 \u0434\u043e\u0441\u0442\u0443\u043f \u043a \u0437\u0430\u0449\u0438\u0449\u0430\u0435\u043c\u043e\u0439 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438",
  "\u041f\u043e\u0441\u043b\u0435\u0434\u0441\u0442\u0432\u0438\u044f \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": null,
  "\u041f\u0440\u043e\u0447\u0430\u044f \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f": null,
  "\u0421\u0432\u044f\u0437\u044c \u0441 \u0438\u043d\u0446\u0438\u0434\u0435\u043d\u0442\u0430\u043c\u0438 \u0418\u0411": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u0421\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u0430",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f": "\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438": "\u041d\u0435\u0441\u0430\u043d\u043a\u0446\u0438\u043e\u043d\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0439 \u0441\u0431\u043e\u0440 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438",
  "\u0421\u0441\u044b\u043b\u043a\u0438 \u043d\u0430 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0438": "http://www.securitytracker.com/id/1041144 \nhttp://www.securitytracker.com/id/1041147 \nhttps://access.redhat.com/errata/RHSA-2018:3221 \nhttps://access.redhat.com/errata/RHSA-2018:3505 \nhttps://dev.gnupg.org/T4011 \nhttps://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=9010d1576e278a4274ad3f4aa15776c28f6ba965 \nhttps://lists.debian.org/debian-lts-announce/2018/06/msg00013.html \nhttps://lists.gnupg.org/pipermail/gnupg-announce/2018q2/000426.html \nhttps://usn.ubuntu.com/3689-1/ \nhttps://usn.ubuntu.com/3689-2/ \nhttps://usn.ubuntu.com/3692-1/ \nhttps://usn.ubuntu.com/3692-2/ \nhttps://usn.ubuntu.com/3850-1/ \nhttps://usn.ubuntu.com/3850-2/ \nhttps://www.debian.org/security/2018/dsa-4231 \nhttps://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/ \nhttps://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html",
  "\u0421\u0442\u0430\u0442\u0443\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041f\u043e\u0434\u0442\u0432\u0435\u0440\u0436\u0434\u0435\u043d\u0430 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u0435\u043c",
  "\u0422\u0438\u043f \u041f\u041e": "\u041e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u0430\u044f \u0441\u0438\u0441\u0442\u0435\u043c\u0430, \u041f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0435 \u0441\u0440\u0435\u0434\u0441\u0442\u0432\u043e \u0437\u0430\u0449\u0438\u0442\u044b, \u0421\u0435\u0442\u0435\u0432\u043e\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0435 \u0441\u0440\u0435\u0434\u0441\u0442\u0432\u043e",
  "\u0422\u0438\u043f \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "CWE-200",
  "\u0423\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0421\u0440\u0435\u0434\u043d\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 2.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 4,7)\n\u0421\u0440\u0435\u0434\u043d\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 3.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 4,7)"
}

CVE-2018-0495 (GCVE-0-2018-0495)

Vulnerability from cvelistv5 – Published: 2018-06-13 23:00 – Updated: 2024-08-05 03:28

Summary

Libgcrypt before 1.7.10 and 1.8.x before 1.8.3 allows a memory-cache side-channel attack on ECDSA signatures that can be mitigated through the use of blinding during the signing process in the _gcry_ecc_ecdsa_sign function in cipher/ecc-ecdsa.c, 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.

Severity

No CVSS data available.

CWE

side-channel attack

Assigner

debian mitre root

References

21 references

URL	Tags
https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcr…	x_refsource_MISC
http://www.securitytracker.com/id/1041144	vdb-entryx_refsource_SECTRACK
https://usn.ubuntu.com/3850-1/	vendor-advisoryx_refsource_UBUNTU
http://www.securitytracker.com/id/1041147	vdb-entryx_refsource_SECTRACK
https://www.nccgroup.trust/us/our-research/techni…	x_refsource_MISC
https://usn.ubuntu.com/3689-1/	vendor-advisoryx_refsource_UBUNTU
https://lists.gnupg.org/pipermail/gnupg-announce/…	x_refsource_MISC
https://usn.ubuntu.com/3689-2/	vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3692-2/	vendor-advisoryx_refsource_UBUNTU
https://lists.debian.org/debian-lts-announce/2018…	mailing-listx_refsource_MLIST
https://www.debian.org/security/2018/dsa-4231	vendor-advisoryx_refsource_DEBIAN
https://access.redhat.com/errata/RHSA-2018:3505	vendor-advisoryx_refsource_REDHAT
https://usn.ubuntu.com/3850-2/	vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3692-1/	vendor-advisoryx_refsource_UBUNTU
https://access.redhat.com/errata/RHSA-2018:3221	vendor-advisoryx_refsource_REDHAT
https://dev.gnupg.org/T4011	x_refsource_MISC
https://www.oracle.com/technetwork/security-advis…	x_refsource_MISC
https://access.redhat.com/errata/RHSA-2019:1297	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:1296	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:1543	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2237	vendor-advisoryx_refsource_REDHAT

Impacted products

1 product

Vendor	Product	Version
n/a	Libgcrypt before 1.7.10 and 1.8.x before 1.8.3	Affected: Libgcrypt before 1.7.10 and 1.8.x before 1.8.3

Date Public

2018-06-13 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T03:28:10.586Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=9010d1576e278a4274ad3f4aa15776c28f6ba965"
          },
          {
            "name": "1041144",
            "tags": [
              "vdb-entry",
              "x_refsource_SECTRACK",
              "x_transferred"
            ],
            "url": "http://www.securitytracker.com/id/1041144"
          },
          {
            "name": "USN-3850-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3850-1/"
          },
          {
            "name": "1041147",
            "tags": [
              "vdb-entry",
              "x_refsource_SECTRACK",
              "x_transferred"
            ],
            "url": "http://www.securitytracker.com/id/1041147"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/"
          },
          {
            "name": "USN-3689-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3689-1/"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://lists.gnupg.org/pipermail/gnupg-announce/2018q2/000426.html"
          },
          {
            "name": "USN-3689-2",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3689-2/"
          },
          {
            "name": "USN-3692-2",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3692-2/"
          },
          {
            "name": "[debian-lts-announce] 20180629 [SECURITY] [DLA 1405-1] libgcrypt20 security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2018/06/msg00013.html"
          },
          {
            "name": "DSA-4231",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "https://www.debian.org/security/2018/dsa-4231"
          },
          {
            "name": "RHSA-2018:3505",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2018:3505"
          },
          {
            "name": "USN-3850-2",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3850-2/"
          },
          {
            "name": "USN-3692-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3692-1/"
          },
          {
            "name": "RHSA-2018:3221",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2018:3221"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://dev.gnupg.org/T4011"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html"
          },
          {
            "name": "RHSA-2019:1297",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:1297"
          },
          {
            "name": "RHSA-2019:1296",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:1296"
          },
          {
            "name": "RHSA-2019:1543",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:1543"
          },
          {
            "name": "RHSA-2019:2237",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:2237"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Libgcrypt before 1.7.10 and 1.8.x before 1.8.3",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "Libgcrypt before 1.7.10 and 1.8.x before 1.8.3"
            }
          ]
        }
      ],
      "datePublic": "2018-06-13T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Libgcrypt before 1.7.10 and 1.8.x before 1.8.3 allows a memory-cache side-channel attack on ECDSA signatures that can be mitigated through the use of blinding during the signing process in the _gcry_ecc_ecdsa_sign function in cipher/ecc-ecdsa.c, 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."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "side-channel attack",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2019-08-06T16:06:34.000Z",
        "orgId": "79363d38-fa19-49d1-9214-5f28da3f3ac5",
        "shortName": "debian"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=9010d1576e278a4274ad3f4aa15776c28f6ba965"
        },
        {
          "name": "1041144",
          "tags": [
            "vdb-entry",
            "x_refsource_SECTRACK"
          ],
          "url": "http://www.securitytracker.com/id/1041144"
        },
        {
          "name": "USN-3850-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3850-1/"
        },
        {
          "name": "1041147",
          "tags": [
            "vdb-entry",
            "x_refsource_SECTRACK"
          ],
          "url": "http://www.securitytracker.com/id/1041147"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/"
        },
        {
          "name": "USN-3689-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3689-1/"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://lists.gnupg.org/pipermail/gnupg-announce/2018q2/000426.html"
        },
        {
          "name": "USN-3689-2",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3689-2/"
        },
        {
          "name": "USN-3692-2",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3692-2/"
        },
        {
          "name": "[debian-lts-announce] 20180629 [SECURITY] [DLA 1405-1] libgcrypt20 security update",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2018/06/msg00013.html"
        },
        {
          "name": "DSA-4231",
          "tags": [
            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "https://www.debian.org/security/2018/dsa-4231"
        },
        {
          "name": "RHSA-2018:3505",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2018:3505"
        },
        {
          "name": "USN-3850-2",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3850-2/"
        },
        {
          "name": "USN-3692-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3692-1/"
        },
        {
          "name": "RHSA-2018:3221",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2018:3221"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://dev.gnupg.org/T4011"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html"
        },
        {
          "name": "RHSA-2019:1297",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:1297"
        },
        {
          "name": "RHSA-2019:1296",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:1296"
        },
        {
          "name": "RHSA-2019:1543",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:1543"
        },
        {
          "name": "RHSA-2019:2237",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:2237"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security@debian.org",
          "ID": "CVE-2018-0495",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Libgcrypt before 1.7.10 and 1.8.x before 1.8.3",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "Libgcrypt before 1.7.10 and 1.8.x before 1.8.3"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "Libgcrypt before 1.7.10 and 1.8.x before 1.8.3 allows a memory-cache side-channel attack on ECDSA signatures that can be mitigated through the use of blinding during the signing process in the _gcry_ecc_ecdsa_sign function in cipher/ecc-ecdsa.c, 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."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "side-channel attack"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=9010d1576e278a4274ad3f4aa15776c28f6ba965",
              "refsource": "MISC",
              "url": "https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=9010d1576e278a4274ad3f4aa15776c28f6ba965"
            },
            {
              "name": "1041144",
              "refsource": "SECTRACK",
              "url": "http://www.securitytracker.com/id/1041144"
            },
            {
              "name": "USN-3850-1",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/3850-1/"
            },
            {
              "name": "1041147",
              "refsource": "SECTRACK",
              "url": "http://www.securitytracker.com/id/1041147"
            },
            {
              "name": "https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/",
              "refsource": "MISC",
              "url": "https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/"
            },
            {
              "name": "USN-3689-1",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/3689-1/"
            },
            {
              "name": "https://lists.gnupg.org/pipermail/gnupg-announce/2018q2/000426.html",
              "refsource": "MISC",
              "url": "https://lists.gnupg.org/pipermail/gnupg-announce/2018q2/000426.html"
            },
            {
              "name": "USN-3689-2",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/3689-2/"
            },
            {
              "name": "USN-3692-2",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/3692-2/"
            },
            {
              "name": "[debian-lts-announce] 20180629 [SECURITY] [DLA 1405-1] libgcrypt20 security update",
              "refsource": "MLIST",
              "url": "https://lists.debian.org/debian-lts-announce/2018/06/msg00013.html"
            },
            {
              "name": "DSA-4231",
              "refsource": "DEBIAN",
              "url": "https://www.debian.org/security/2018/dsa-4231"
            },
            {
              "name": "RHSA-2018:3505",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2018:3505"
            },
            {
              "name": "USN-3850-2",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/3850-2/"
            },
            {
              "name": "USN-3692-1",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/3692-1/"
            },
            {
              "name": "RHSA-2018:3221",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2018:3221"
            },
            {
              "name": "https://dev.gnupg.org/T4011",
              "refsource": "MISC",
              "url": "https://dev.gnupg.org/T4011"
            },
            {
              "name": "https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html",
              "refsource": "MISC",
              "url": "https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html"
            },
            {
              "name": "RHSA-2019:1297",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2019:1297"
            },
            {
              "name": "RHSA-2019:1296",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2019:1296"
            },
            {
              "name": "RHSA-2019:1543",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2019:1543"
            },
            {
              "name": "RHSA-2019:2237",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2019:2237"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "79363d38-fa19-49d1-9214-5f28da3f3ac5",
    "assignerShortName": "debian",
    "cveId": "CVE-2018-0495",
    "datePublished": "2018-06-13T23:00:00.000Z",
    "dateReserved": "2017-11-27T00:00:00.000Z",
    "dateUpdated": "2024-08-05T03:28:10.586Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.