NVD

CVE-2017-7526 Detail

Modified

This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.

Description

libgcrypt before version 1.7.8 is vulnerable to a cache side-channel attack resulting into a complete break of RSA-1024 while using the left-to-right method for computing the sliding-window expansion. The same attack is believed to work on RSA-2048 with moderately more computation. This side-channel requires that attacker can run arbitrary software on the hardware where the private RSA key is used.

Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.

CVSS 4.0 Severity and Vector Strings:

NIST: NVD

N/A

NVD assessment not yet provided.

CVSS 3.x Severity and Vector Strings:

NIST: NVD

Base Score: 6.8 MEDIUM

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

Nist CVSS score does not match with CNA score

CNA: Red Hat, Inc.

Base Score: 6.1 MEDIUM

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N

CVSS 2.0 Severity and Vector Strings:

National Institute of Standards and Technology

NIST: NVD

Base Score: 4.3 MEDIUM

Vector: (AV:N/AC:M/Au:N/C:P/I:N/A:N)

References to Advisories, Solutions, and Tools

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Hyperlink	Resource
http://www.securityfocus.com/bid/99338	Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/99338	Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1038915	Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1038915	Third Party Advisory VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7526	Issue Tracking Patch Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7526	Issue Tracking Patch Third Party Advisory
https://eprint.iacr.org/2017/627	Third Party Advisory
https://eprint.iacr.org/2017/627	Third Party Advisory
https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=78130828e9a140a9de4dafadbc844dbb64cb709a
https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=78130828e9a140a9de4dafadbc844dbb64cb709a
https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=8725c99ffa41778f382ca97233183bcd687bb0ce
https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=8725c99ffa41778f382ca97233183bcd687bb0ce
https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=e6a3dc9900433bbc8ad362a595a3837318c28fa9
https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=e6a3dc9900433bbc8ad362a595a3837318c28fa9
https://lists.gnupg.org/pipermail/gnupg-announce/2017q2/000408.html	Mailing List Vendor Advisory
https://lists.gnupg.org/pipermail/gnupg-announce/2017q2/000408.html	Mailing List Vendor Advisory
https://usn.ubuntu.com/3733-1/	Third Party Advisory
https://usn.ubuntu.com/3733-1/	Third Party Advisory
https://usn.ubuntu.com/3733-2/	Third Party Advisory
https://usn.ubuntu.com/3733-2/	Third Party Advisory
https://www.debian.org/security/2017/dsa-3901	Third Party Advisory
https://www.debian.org/security/2017/dsa-3901	Third Party Advisory
https://www.debian.org/security/2017/dsa-3960	Third Party Advisory
https://www.debian.org/security/2017/dsa-3960	Third Party Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-310	Cryptographic Issues	NIST
CWE-200	Exposure of Sensitive Information to an Unauthorized Actor	Red Hat, Inc.

Known Affected Software Configurations Switch to CPE 2.2

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Denotes Vulnerable Software
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Change History

9 change records found show changes

CVE Modified by CVE 11/20/2024 10:32:05 PM

Action	Type	New Value
Added	Reference	http://www.securityfocus.com/bid/99338
Added	Reference	http://www.securitytracker.com/id/1038915
Added	Reference	https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7526
Added	Reference	https://eprint.iacr.org/2017/627
Added	Reference	https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=78130828e9a140a9de4dafadbc844dbb64cb709a
Added	Reference	https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=8725c99ffa41778f382ca97233183bcd687bb0ce
Added	Reference	https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=e6a3dc9900433bbc8ad362a595a3837318c28fa9
Added	Reference	https://lists.gnupg.org/pipermail/gnupg-announce/2017q2/000408.html
Added	Reference	https://usn.ubuntu.com/3733-1/
Added	Reference	https://usn.ubuntu.com/3733-2/
Added	Reference	https://www.debian.org/security/2017/dsa-3901
Added	Reference	https://www.debian.org/security/2017/dsa-3960

CVE Modified by Red Hat, Inc. 11/06/2023 9:50:12 PM

Action	Type	Old Value	New Value
Added	Reference		Red Hat, Inc. https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=78130828e9a140a9de4dafadbc844dbb64cb709a [No types assigned]
Added	Reference		Red Hat, Inc. https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=8725c99ffa41778f382ca97233183bcd687bb0ce [No types assigned]
Added	Reference		Red Hat, Inc. https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=e6a3dc9900433bbc8ad362a595a3837318c28fa9 [No types assigned]
Removed	Reference	Red Hat, Inc. https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=78130828e9a140a9de4dafadbc844dbb64cb709a
Removed	Reference	Red Hat, Inc. https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=8725c99ffa41778f382ca97233183bcd687bb0ce
Removed	Reference	Red Hat, Inc. https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=e6a3dc9900433bbc8ad362a595a3837318c28fa9

Initial Analysis by NIST 10/02/2018 10:02:49 AM

Action	Type	Old Value	New Value
Added	CVSS V3		AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
Added	CVSS V2		(AV:N/AC:M/Au:N/C:P/I:N/A:N)
Added	CWE		CWE-310
Added	CPE Configuration		OR cpe:2.3:a:gnupg:libgcrypt::::::::* versions up to (excluding) 1.7.8
Added	CPE Configuration		OR cpe:2.3:o:canonical:ubuntu_linux:12.04::::esm:::* cpe:2.3:o:canonical:ubuntu_linux:14.04::::lts:::* cpe:2.3:o:canonical:ubuntu_linux:16.04::::lts:::*
Added	CPE Configuration		OR cpe:2.3:o:debian:debian_linux:8.0::::::: cpe:2.3:o:debian:debian_linux:9.0:::::::
Changed	Reference Type	http://www.securityfocus.com/bid/99338 No Types Assigned	http://www.securityfocus.com/bid/99338 Third Party Advisory, VDB Entry
Changed	Reference Type	http://www.securitytracker.com/id/1038915 No Types Assigned	http://www.securitytracker.com/id/1038915 Third Party Advisory, VDB Entry
Changed	Reference Type	https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7526 No Types Assigned	https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7526 Issue Tracking, Patch, Third Party Advisory
Changed	Reference Type	https://eprint.iacr.org/2017/627 No Types Assigned	https://eprint.iacr.org/2017/627 Third Party Advisory
Changed	Reference Type	https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=78130828e9a140a9de4dafadbc844dbb64cb709a No Types Assigned	https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=78130828e9a140a9de4dafadbc844dbb64cb709a Patch, Vendor Advisory
Changed	Reference Type	https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=8725c99ffa41778f382ca97233183bcd687bb0ce No Types Assigned	https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=8725c99ffa41778f382ca97233183bcd687bb0ce Patch, Vendor Advisory
Changed	Reference Type	https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=e6a3dc9900433bbc8ad362a595a3837318c28fa9 No Types Assigned	https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=e6a3dc9900433bbc8ad362a595a3837318c28fa9 Patch, Vendor Advisory
Changed	Reference Type	https://lists.gnupg.org/pipermail/gnupg-announce/2017q2/000408.html No Types Assigned	https://lists.gnupg.org/pipermail/gnupg-announce/2017q2/000408.html Mailing List, Vendor Advisory
Changed	Reference Type	https://usn.ubuntu.com/3733-1/ No Types Assigned	https://usn.ubuntu.com/3733-1/ Third Party Advisory
Changed	Reference Type	https://usn.ubuntu.com/3733-2/ No Types Assigned	https://usn.ubuntu.com/3733-2/ Third Party Advisory
Changed	Reference Type	https://www.debian.org/security/2017/dsa-3901 No Types Assigned	https://www.debian.org/security/2017/dsa-3901 Third Party Advisory
Changed	Reference Type	https://www.debian.org/security/2017/dsa-3960 No Types Assigned	https://www.debian.org/security/2017/dsa-3960 Third Party Advisory

Quick Info

CVE Dictionary Entry:
CVE-2017-7526
NVD Published Date:
07/26/2018
NVD Last Modified:
11/20/2024
Source:
Red Hat, Inc.

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Information Technology Laboratory

National Vulnerability Database

National Vulnerability Database

CVE-2017-7526 Detail

Description

Metrics

References to Advisories, Solutions, and Tools

Weakness Enumeration

Known Affected Software Configurations Switch to CPE 2.2

CPEs loading, please wait.

Change History

CVE Modified by CVE 11/20/2024 10:32:05 PM

CVE Modified by Red Hat, Inc. 5/14/2024 12:45:21 AM

CVE Modified by Red Hat, Inc. 11/06/2023 9:50:12 PM

CVE Modified by Red Hat, Inc. 10/09/2019 7:29:42 PM

Initial Analysis by NIST 10/02/2018 10:02:49 AM

CVE Modified by Red Hat, Inc. 8/16/2018 6:29:00 AM

CVE Modified by Red Hat, Inc. 8/07/2018 9:29:03 PM

CVE Modified by Red Hat, Inc. 7/27/2018 9:29:04 PM

CVE Modified by Red Hat, Inc. 7/26/2018 9:29:00 PM

Quick Info