Information disclosure in libgcrypt (Alpine package)



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2017-0379
CWE-ID CWE-200
Exploitation vector Network
Public exploit N/A
Vulnerable software
 libgcrypt (Alpine package)
Operating systems & Components / Operating system package or component

Vendor Alpine Linux Development Team

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Information disclosure

EUVDB-ID: #VU32070

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2017-0379

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

Libgcrypt before 1.8.1 does not properly consider Curve25519 side-channel attacks, which makes it easier for attackers to discover a secret key, related to cipher/ecc.c and mpi/ec.c.

Mitigation

Install update from vendor's website.

Vulnerable software versions

libgcrypt (Alpine package): 1.7.8-r0

CPE2.3 External links

https://git.alpinelinux.org/aports/commit/?id=696f5be8d1756d7d79380dea33195ba98c85a833
https://git.alpinelinux.org/aports/commit/?id=a7b9d19a1fc41bfd42e93e36100949f79ed0ea50
https://git.alpinelinux.org/aports/commit/?id=3189f66bd0bf5c00883e527600243bc084badd61
https://git.alpinelinux.org/aports/commit/?id=3b612fd1e8496523ee54b325d8e3b6de96bde290


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.



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