Risk | Low |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2018-12435 |
CWE-ID | CWE-200 |
Exploitation vector | Local |
Public exploit | N/A |
Vulnerable software Subscribe |
Botan Universal components / Libraries / Libraries used by multiple products |
Vendor | Randombit |
Security Bulletin
This security bulletin contains one low risk vulnerability.
EUVDB-ID: #VU13398
Risk: Low
CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2018-12435
CWE-ID:
CWE-200 - Information exposure
Exploit availability: No
DescriptionThe vulnerability allows a local attacker to obtain potentially sensitive information.
The vulnerability exists in the Botan library due to a leakage of information through memory caches when the library uses a private key to create Elliptic Curve Digital Signature Algorithm (ECDSA) signatures as demonstrayed in the dsa/dsa.cpp, ec_group/ec_group.cpp, and ecdsa/ecdsa.cpp source code files. A local attacker can conduct a memory-cache side-channel attack and recover sensitive information, such ECDSA private keys, which could be used to conduct further attacks.
MitigationUpdate to version 2.7.0.
Vulnerable software versionsBotan: 2.5.0 - 2.6.0
External linkshttp://github.com/randombit/botan/commit/48fc8df51d99f9d8ba251219367b3d629cc848e3
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.