Debian DSA-4018-1 : openssl - security update

Medium Nessus Plugin ID 104402

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VPR Score: 3.6


The remote Debian host is missing a security-related update.


Multiple vulnerabilities have been discovered in OpenSSL, a Secure Sockets Layer toolkit. The Common Vulnerabilities and Exposures project identifies the following issues :

- CVE-2017-3735 It was discovered that OpenSSL is prone to a one-byte buffer overread while parsing a malformed IPAddressFamily extension in an X.509 certificate.

Details can be found in the upstream advisory:

- CVE-2017-3736 It was discovered that OpenSSL contains a carry propagation bug in the x86_64 Montgomery squaring procedure.

Details can be found in the upstream advisory:


Upgrade the openssl packages.

For the oldstable distribution (jessie), CVE-2017-3735 has been fixed in version 1.0.1t-1+deb8u7. The oldstable distribution is not affected by CVE-2017-3736.

For the stable distribution (stretch), these problems have been fixed in version 1.1.0f-3+deb9u1.

See Also

Plugin Details

Severity: Medium

ID: 104402

File Name: debian_DSA-4018.nasl

Version: 3.5

Type: local

Agent: unix

Published: 2017/11/06

Updated: 2018/11/10

Dependencies: 12634

Risk Information

Risk Factor: Medium

VPR Score: 3.6

CVSS v2.0

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N

CVSS v3.0

Base Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:openssl, cpe:/o:debian:debian_linux:8.0, cpe:/o:debian:debian_linux:9.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Patch Publication Date: 2017/11/04

Reference Information

CVE: CVE-2017-3735, CVE-2017-3736

DSA: 4018