Information disclosure in libgcrypt



| Updated: 2018-03-16
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2018-6829
CWE-ID CWE-200
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
 Libgcrypt
Client/Desktop applications / Encryption software

Vendor GNU

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Information disclosure

EUVDB-ID: #VU11129

Risk: Low

CVSSv4.0: 5.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2018-6829

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote unauthenticated attacker to obtain potentially sensitive information on the target system.

The weakness exists in the cipher/elgamal.c source code due to insufficient encryption. A remote attacker can access improperly coded plaintexts.

Mitigation

Cybersecurity is currently unaware of any solutions addressing the vulnerability.

Vulnerable software versions

Libgcrypt: 1.7.3 - 1.8.2

CPE2.3 External links

https://github.com/weikengchen/attack-on-libgcrypt-elgamal


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.



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