CVE-2017-0379: Infoleak
First published: Sun Aug 27 2017(Updated: )
Libgcrypt before 1.8.1 does not properly consider Curve25519 side-channel attacks, which makes it easier for attackers to discover a secret key, related to cipher/ecc.c and mpi/ec.c.
Credit: security@debian.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/libgcrypt20 | <=1.8.0-1<=1.7.1-1 | 1.8.1-1 1.7.9-1 1.7.6-2+deb9u2 |
| debian/libgcrypt20 | 1.8.7-6 1.10.1-3 1.11.0-2 1.11.0-5 | |
| Libgcrypt | <=1.8.0 | |
| Debian Linux | =9.0 |
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Reference Links
- https://security-tracker.debian.org/tracker/CVE-2017-0379
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-0379
- https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=da780c8183cccc8f533c8ace8211ac2cb2bdee7b
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=873383
- https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commitdiff;h=da780c8183cccc8f533c8ace8211ac2cb2bdee7b
- https://eprint.iacr.org/2017/806
- http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
- http://www.securityfocus.com/bid/100503
- http://www.securitytracker.com/id/1041294
- https://bugs.debian.org/873383
- https://lists.debian.org/debian-security-announce/2017/msg00221.html
- https://security.netapp.com/advisory/ntap-20180726-0002/
- https://www.debian.org/security/2017/dsa-3959
- https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html
- https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=da780c8183cccc8f533c8ace8211ac2cb2bdee7b
Frequently Asked Questions
What is the severity of CVE-2017-0379?
CVE-2017-0379 is considered to have a medium severity level due to its potential impact on the confidentiality of secret keys.
How do I fix CVE-2017-0379?
To fix CVE-2017-0379, upgrade Libgcrypt to version 1.8.1 or later.
What software is affected by CVE-2017-0379?
CVE-2017-0379 affects versions of Libgcrypt prior to 1.8.1 and Debian Linux 9.0 installations.
What types of attacks does CVE-2017-0379 relate to?
CVE-2017-0379 relates to side-channel attacks on Curve25519 implementations.
How can CVE-2017-0379 impact security?
CVE-2017-0379 can potentially allow attackers to more easily discover secret keys used in cryptographic operations.
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