Vulnerability Details : CVE-2015-0837
The mpi_powm function in Libgcrypt before 1.6.3 and GnuPG before 1.4.19 allows attackers to obtain sensitive information by leveraging timing differences when accessing a pre-computed table during modular exponentiation, related to a "Last-Level Cache Side-Channel Attack."
Exploit prediction scoring system (EPSS) score for CVE-2015-0837
Probability of exploitation activity in the next 30 days: 0.26%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 62 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2015-0837
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:N/A:N |
8.6
|
2.9
|
[email protected] |
|
5.9
|
MEDIUM | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |
2.2
|
3.6
|
[email protected] |
CWE ids for CVE-2015-0837
-
The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor, which exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not.Assigned by: [email protected] (Primary)
References for CVE-2015-0837
-
https://lists.gnupg.org/pipermail/gnupg-announce/2015q1/000364.html
Mailing List;Vendor Advisory
-
https://lists.gnupg.org/pipermail/gnupg-announce/2015q1/000363.html
Mailing List;Vendor Advisory
-
http://www.debian.org/security/2015/dsa-3185
Third Party Advisory
-
https://ieeexplore.ieee.org/document/7163050
Third Party Advisory
-
http://www.debian.org/security/2015/dsa-3184
Third Party Advisory
Products affected by CVE-2015-0837
- cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:a:gnupg:gnupg:*:*:*:*:*:*:*:*
- cpe:2.3:a:gnupg:libgcrypt:*:*:*:*:*:*:*:*