Information Exposure Affecting libgcrypt20 package, versions <1.6.5-2ubuntu0.3
Snyk CVSS
Threat Intelligence
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk ID SNYK-UBUNTU1604-LIBGCRYPT20-391869
- published 11 Jun 2017
- disclosed 11 Jun 2017
Introduced: 11 Jun 2017
CVE-2017-9526 Open this link in a new tabHow to fix?
Upgrade Ubuntu:16.04
libgcrypt20
to version 1.6.5-2ubuntu0.3 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libgcrypt20
package and not the libgcrypt20
package as distributed by Ubuntu
.
See How to fix?
for Ubuntu:16.04
relevant fixed versions and status.
In Libgcrypt before 1.7.7, an attacker who learns the EdDSA session key (from side-channel observation during the signing process) can easily recover the long-term secret key. 1.7.7 makes a cipher/ecc-eddsa.c change to store this session key in secure memory, to ensure that constant-time point operations are used in the MPI library.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2017-9526
- https://bugzilla.suse.com/show_bug.cgi?id=1042326
- https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=5a22de904a0a366ae79f03ff1e13a1232a89e26b
- https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=f9494b3f258e01b6af8bd3941ce436bcc00afc56
- http://www.debian.org/security/2017/dsa-3880
- https://security-tracker.debian.org/tracker/CVE-2017-9526
- https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html
- http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
- http://www.securityfocus.com/bid/99046
- https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=5a22de904a0a366ae79f03ff1e13a1232a89e26b
- https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=f9494b3f258e01b6af8bd3941ce436bcc00afc56