CVE-2015-0837
Publication date 2 March 2015
Last updated 24 July 2024
Ubuntu priority
Cvss 3 Severity Score
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."
Status
Package | Ubuntu Release | Status |
---|---|---|
gnupg | ||
14.04 LTS trusty |
Fixed 1.4.16-1ubuntu2.3
|
|
libgcrypt11 | ||
14.04 LTS trusty |
Fixed 1.5.3-2ubuntu4.2
|
|
libgcrypt20 | ||
14.04 LTS trusty |
Fixed 1.6.1-2ubuntu1.14.04.1
|
|
Patch details
Severity score breakdown
Parameter | Value |
---|---|
Base score | 5.9 · Medium |
Attack vector | Network |
Attack complexity | High |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | None |
Availability impact | None |
Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |
References
Related Ubuntu Security Notices (USN)
- USN-2555-1
- Libgcrypt vulnerabilities
- 1 April 2015
- USN-2554-1
- GnuPG vulnerabilities
- 1 April 2015