// For flags

CVE-2013-4242

GnuPG susceptible to Yarom/Falkner flush+reload cache side-channel attack

Severity Score

10.0
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

GnuPG before 1.4.14, and Libgcrypt before 1.5.3 as used in GnuPG 2.0.x and possibly other products, allows local users to obtain private RSA keys via a cache side-channel attack involving the L3 cache, aka Flush+Reload.

GnuPG anterior a 1.4.14, y Libgcrypt anterior a 1.5.3 usado en GnuPG 2.0.x y posiblemente otros productos, permite a usuarios locales obtener las claves RSA privadas a través de un ataque "side-channel" que involucra la caché L3. Aka Flush+Reload.

The GNU Privacy Guard is a tool for encrypting data and creating digital signatures, compliant with the proposed OpenPGP Internet standard and the S/MIME standard. It was found that GnuPG was vulnerable to the Yarom/Falkner flush+reload cache side-channel attack on the RSA secret exponent. An attacker able to execute a process on the logical CPU that shared the L3 cache with the GnuPG process could possibly use this flaw to obtain portions of the RSA secret key.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2013-06-12 CVE Reserved
  • 2013-07-29 CVE Published
  • 2024-08-06 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Canonical
Search vendor "Canonical"
Ubuntu Linux
Search vendor "Canonical" for product "Ubuntu Linux"
10.04
Search vendor "Canonical" for product "Ubuntu Linux" and version "10.04"
lts
Affected
Canonical
Search vendor "Canonical"
Ubuntu Linux
Search vendor "Canonical" for product "Ubuntu Linux"
12.04
Search vendor "Canonical" for product "Ubuntu Linux" and version "12.04"
lts
Affected
Canonical
Search vendor "Canonical"
Ubuntu Linux
Search vendor "Canonical" for product "Ubuntu Linux"
12.10
Search vendor "Canonical" for product "Ubuntu Linux" and version "12.10"
-
Affected
Canonical
Search vendor "Canonical"
Ubuntu Linux
Search vendor "Canonical" for product "Ubuntu Linux"
13.04
Search vendor "Canonical" for product "Ubuntu Linux" and version "13.04"
-
Affected
Debian
Search vendor "Debian"
Debian Linux
Search vendor "Debian" for product "Debian Linux"
6.0
Search vendor "Debian" for product "Debian Linux" and version "6.0"
-
Affected
Debian
Search vendor "Debian"
Debian Linux
Search vendor "Debian" for product "Debian Linux"
7.0
Search vendor "Debian" for product "Debian Linux" and version "7.0"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
<= 1.4.13
Search vendor "Gnupg" for product "Gnupg" and version " <= 1.4.13"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
0.0.0
Search vendor "Gnupg" for product "Gnupg" and version "0.0.0"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
0.2.15
Search vendor "Gnupg" for product "Gnupg" and version "0.2.15"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
0.2.16
Search vendor "Gnupg" for product "Gnupg" and version "0.2.16"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
0.2.17
Search vendor "Gnupg" for product "Gnupg" and version "0.2.17"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
0.2.18
Search vendor "Gnupg" for product "Gnupg" and version "0.2.18"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
0.2.19
Search vendor "Gnupg" for product "Gnupg" and version "0.2.19"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
0.3.0
Search vendor "Gnupg" for product "Gnupg" and version "0.3.0"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
0.3.1
Search vendor "Gnupg" for product "Gnupg" and version "0.3.1"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
0.3.2
Search vendor "Gnupg" for product "Gnupg" and version "0.3.2"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
0.3.3
Search vendor "Gnupg" for product "Gnupg" and version "0.3.3"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
0.3.4
Search vendor "Gnupg" for product "Gnupg" and version "0.3.4"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
0.3.5
Search vendor "Gnupg" for product "Gnupg" and version "0.3.5"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
0.4.0
Search vendor "Gnupg" for product "Gnupg" and version "0.4.0"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
0.4.1
Search vendor "Gnupg" for product "Gnupg" and version "0.4.1"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
0.4.3
Search vendor "Gnupg" for product "Gnupg" and version "0.4.3"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
0.4.4
Search vendor "Gnupg" for product "Gnupg" and version "0.4.4"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
0.4.5
Search vendor "Gnupg" for product "Gnupg" and version "0.4.5"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
0.9.0
Search vendor "Gnupg" for product "Gnupg" and version "0.9.0"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
0.9.1
Search vendor "Gnupg" for product "Gnupg" and version "0.9.1"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
0.9.2
Search vendor "Gnupg" for product "Gnupg" and version "0.9.2"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
0.9.3
Search vendor "Gnupg" for product "Gnupg" and version "0.9.3"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
0.9.4
Search vendor "Gnupg" for product "Gnupg" and version "0.9.4"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
0.9.5
Search vendor "Gnupg" for product "Gnupg" and version "0.9.5"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
0.9.6
Search vendor "Gnupg" for product "Gnupg" and version "0.9.6"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
0.9.7
Search vendor "Gnupg" for product "Gnupg" and version "0.9.7"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
0.9.8
Search vendor "Gnupg" for product "Gnupg" and version "0.9.8"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
0.9.9
Search vendor "Gnupg" for product "Gnupg" and version "0.9.9"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
0.9.10
Search vendor "Gnupg" for product "Gnupg" and version "0.9.10"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
0.9.11
Search vendor "Gnupg" for product "Gnupg" and version "0.9.11"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
1.0.0
Search vendor "Gnupg" for product "Gnupg" and version "1.0.0"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
1.0.1
Search vendor "Gnupg" for product "Gnupg" and version "1.0.1"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
1.0.2
Search vendor "Gnupg" for product "Gnupg" and version "1.0.2"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
1.0.3
Search vendor "Gnupg" for product "Gnupg" and version "1.0.3"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
1.0.4
Search vendor "Gnupg" for product "Gnupg" and version "1.0.4"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
1.0.4
Search vendor "Gnupg" for product "Gnupg" and version "1.0.4"
win32
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
1.0.5
Search vendor "Gnupg" for product "Gnupg" and version "1.0.5"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
1.0.5
Search vendor "Gnupg" for product "Gnupg" and version "1.0.5"
win32
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
1.0.6
Search vendor "Gnupg" for product "Gnupg" and version "1.0.6"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
1.0.7
Search vendor "Gnupg" for product "Gnupg" and version "1.0.7"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
1.2.0
Search vendor "Gnupg" for product "Gnupg" and version "1.2.0"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
1.2.1
Search vendor "Gnupg" for product "Gnupg" and version "1.2.1"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
1.2.1
Search vendor "Gnupg" for product "Gnupg" and version "1.2.1"
windows
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
1.2.2
Search vendor "Gnupg" for product "Gnupg" and version "1.2.2"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
1.2.3
Search vendor "Gnupg" for product "Gnupg" and version "1.2.3"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
1.2.4
Search vendor "Gnupg" for product "Gnupg" and version "1.2.4"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
1.2.5
Search vendor "Gnupg" for product "Gnupg" and version "1.2.5"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
1.2.6
Search vendor "Gnupg" for product "Gnupg" and version "1.2.6"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
1.2.7
Search vendor "Gnupg" for product "Gnupg" and version "1.2.7"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
1.3.0
Search vendor "Gnupg" for product "Gnupg" and version "1.3.0"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
1.3.1
Search vendor "Gnupg" for product "Gnupg" and version "1.3.1"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
1.3.2
Search vendor "Gnupg" for product "Gnupg" and version "1.3.2"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
1.3.3
Search vendor "Gnupg" for product "Gnupg" and version "1.3.3"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
1.3.4
Search vendor "Gnupg" for product "Gnupg" and version "1.3.4"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
1.3.6
Search vendor "Gnupg" for product "Gnupg" and version "1.3.6"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
1.3.90
Search vendor "Gnupg" for product "Gnupg" and version "1.3.90"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
1.3.91
Search vendor "Gnupg" for product "Gnupg" and version "1.3.91"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
1.3.92
Search vendor "Gnupg" for product "Gnupg" and version "1.3.92"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
1.3.93
Search vendor "Gnupg" for product "Gnupg" and version "1.3.93"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
1.4.0
Search vendor "Gnupg" for product "Gnupg" and version "1.4.0"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
1.4.10
Search vendor "Gnupg" for product "Gnupg" and version "1.4.10"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
1.4.11
Search vendor "Gnupg" for product "Gnupg" and version "1.4.11"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
1.4.12
Search vendor "Gnupg" for product "Gnupg" and version "1.4.12"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
2.0.1
Search vendor "Gnupg" for product "Gnupg" and version "2.0.1"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
2.0.3
Search vendor "Gnupg" for product "Gnupg" and version "2.0.3"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
2.0.4
Search vendor "Gnupg" for product "Gnupg" and version "2.0.4"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
2.0.5
Search vendor "Gnupg" for product "Gnupg" and version "2.0.5"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
2.0.6
Search vendor "Gnupg" for product "Gnupg" and version "2.0.6"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
2.0.7
Search vendor "Gnupg" for product "Gnupg" and version "2.0.7"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
2.0.8
Search vendor "Gnupg" for product "Gnupg" and version "2.0.8"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
2.0.10
Search vendor "Gnupg" for product "Gnupg" and version "2.0.10"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
2.0.11
Search vendor "Gnupg" for product "Gnupg" and version "2.0.11"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
2.0.12
Search vendor "Gnupg" for product "Gnupg" and version "2.0.12"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
2.0.13
Search vendor "Gnupg" for product "Gnupg" and version "2.0.13"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
2.0.14
Search vendor "Gnupg" for product "Gnupg" and version "2.0.14"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
2.0.15
Search vendor "Gnupg" for product "Gnupg" and version "2.0.15"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
2.0.16
Search vendor "Gnupg" for product "Gnupg" and version "2.0.16"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
2.0.17
Search vendor "Gnupg" for product "Gnupg" and version "2.0.17"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
2.0.18
Search vendor "Gnupg" for product "Gnupg" and version "2.0.18"
-
Affected
Gnupg
Search vendor "Gnupg"
Gnupg
Search vendor "Gnupg" for product "Gnupg"
2.0.19
Search vendor "Gnupg" for product "Gnupg" and version "2.0.19"
-
Affected
Gnupg
Search vendor "Gnupg"
Libgcrypt
Search vendor "Gnupg" for product "Libgcrypt"
<= 1.5.2
Search vendor "Gnupg" for product "Libgcrypt" and version " <= 1.5.2"
-
Affected
Gnupg
Search vendor "Gnupg"
Libgcrypt
Search vendor "Gnupg" for product "Libgcrypt"
1.4.0
Search vendor "Gnupg" for product "Libgcrypt" and version "1.4.0"
-
Affected
Gnupg
Search vendor "Gnupg"
Libgcrypt
Search vendor "Gnupg" for product "Libgcrypt"
1.4.3
Search vendor "Gnupg" for product "Libgcrypt" and version "1.4.3"
-
Affected
Gnupg
Search vendor "Gnupg"
Libgcrypt
Search vendor "Gnupg" for product "Libgcrypt"
1.4.4
Search vendor "Gnupg" for product "Libgcrypt" and version "1.4.4"
-
Affected
Gnupg
Search vendor "Gnupg"
Libgcrypt
Search vendor "Gnupg" for product "Libgcrypt"
1.4.5
Search vendor "Gnupg" for product "Libgcrypt" and version "1.4.5"
-
Affected
Gnupg
Search vendor "Gnupg"
Libgcrypt
Search vendor "Gnupg" for product "Libgcrypt"
1.4.6
Search vendor "Gnupg" for product "Libgcrypt" and version "1.4.6"
-
Affected
Gnupg
Search vendor "Gnupg"
Libgcrypt
Search vendor "Gnupg" for product "Libgcrypt"
1.5.0
Search vendor "Gnupg" for product "Libgcrypt" and version "1.5.0"
-
Affected
Gnupg
Search vendor "Gnupg"
Libgcrypt
Search vendor "Gnupg" for product "Libgcrypt"
1.5.1
Search vendor "Gnupg" for product "Libgcrypt" and version "1.5.1"
-
Affected
Opensuse
Search vendor "Opensuse"
Opensuse
Search vendor "Opensuse" for product "Opensuse"
12.2
Search vendor "Opensuse" for product "Opensuse" and version "12.2"
-
Affected
Opensuse
Search vendor "Opensuse"
Opensuse
Search vendor "Opensuse" for product "Opensuse"
12.3
Search vendor "Opensuse" for product "Opensuse" and version "12.3"
-
Affected