CVE-2019-1551 Detail
Current Description
There is an overflow bug in the x64_64 Montgomery squaring procedure used in exponentiation with 512-bit moduli. No EC algorithms are affected. Analysis suggests that attacks against 2-prime RSA1024, 3-prime RSA1536, and DSA1024 as a result of this defect would be very difficult to perform and are not believed likely. Attacks against DH512 are considered just feasible. However, for an attack the target would have to re-use the DH512 private key, which is not recommended anyway. Also applications directly using the low level API BN_mod_exp may be affected if they use BN_FLG_CONSTTIME. Fixed in OpenSSL 1.1.1e-dev (Affected 1.1.1-1.1.1d). Fixed in OpenSSL 1.0.2u-dev (Affected 1.0.2-1.0.2t).
Source: MITRE
View Analysis Description
Analysis Description
There is an overflow bug in the x64_64 Montgomery squaring procedure used in exponentiation with 512-bit moduli. No EC algorithms are affected. Analysis suggests that attacks against 2-prime RSA1024, 3-prime RSA1536, and DSA1024 as a result of this defect would be very difficult to perform and are not believed likely. Attacks against DH512 are considered just feasible. However, for an attack the target would have to re-use the DH512 private key, which is not recommended anyway. Also applications directly using the low level API BN_mod_exp may be affected if they use BN_FLG_CONSTTIME. Fixed in OpenSSL 1.1.1e-dev (Affected 1.1.1-1.1.1d). Fixed in OpenSSL 1.0.2u-dev (Affected 1.0.2-1.0.2t).
Source: MITRE
Severity
References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-200 | Information Exposure | NIST |
Known Affected Software Configurations Switch to CPE 2.2
Configuration 1 ( hide )
| cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* Show Matching CPE(s) |
From (including) 1.0.2 |
Up to (including) 1.0.2t |
| cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* Show Matching CPE(s) |
From (including) 1.1.1 |
Up to (including) 1.1.1d |
Change History
2 change records found – show changes
Initial Analysis – 12/19/2019 12:54:22 PM
| Action | Type | Old Value | New Value |
|---|---|---|---|
| Added | CPE Configuration |
OR
*cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* versions from (including) 1.0.2 up to (including) 1.0.2t
*cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* versions from (including) 1.1.1 up to (including) 1.1.1d
|
|
| Added | CVSS V2 |
NIST (AV:N/AC:L/Au:N/C:P/I:N/A:N) |
|
| Added | CVSS V3.1 |
NIST AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
|
| Added | CWE |
NIST CWE-200 |
|
| Changed | Reference Type |
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=419102400a2811582a7a3d4a4e317d72e5ce0a8f No Types Assigned |
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=419102400a2811582a7a3d4a4e317d72e5ce0a8f Mailing List, Patch, Vendor Advisory |
| Changed | Reference Type |
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=f1c5eea8a817075d31e43f5876993c6710238c98 No Types Assigned |
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=f1c5eea8a817075d31e43f5876993c6710238c98 Mailing List, Patch, Vendor Advisory |
| Changed | Reference Type |
https://security.netapp.com/advisory/ntap-20191210-0001/ No Types Assigned |
https://security.netapp.com/advisory/ntap-20191210-0001/ Third Party Advisory |
| Changed | Reference Type |
https://www.openssl.org/news/secadv/20191206.txt No Types Assigned |
https://www.openssl.org/news/secadv/20191206.txt Vendor Advisory |
CVE Modified by MITRE – 12/10/2019 5:15:18 PM
| Action | Type | Old Value | New Value |
|---|---|---|---|
| Added | Reference |
https://security.netapp.com/advisory/ntap-20191210-0001/ [No Types Assigned] |
Quick Info
CVE Dictionary Entry:
CVE-2019-1551
NVD Published Date:
12/06/2019
NVD Last Modified:
12/19/2019