Homepage
About Snyk

Integer Overflow or Wraparound Affecting libssh2 package, versions <1.7.0-1+deb9u2

0.0
high

Snyk CVSS

    Attack Complexity Low
    User Interaction Required
    Confidentiality High
    Availability High

    Threat Intelligence

    EPSS 0.41% (74th percentile)
Expand this section
NVD
8.1 high
Expand this section
SUSE
5.4 medium
Expand this section
Red Hat
6.5 medium

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk ID SNYK-DEBIAN9-LIBSSH2-474375
  • published 25 Oct 2019
  • disclosed 21 Oct 2019
Report a new vulnerability Found a mistake?

Introduced: 21 Oct 2019

CVE-2019-17498 Open this link in a new tab
CWE-190 Open this link in a new tab

How to fix?

Upgrade Debian:9 libssh2 to version 1.7.0-1+deb9u2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libssh2 package and not the libssh2 package as distributed by Debian. See How to fix? for Debian:9 relevant fixed versions and status.

In libssh2 v1.9.0 and earlier versions, the SSH_MSG_DISCONNECT logic in packet.c has an integer overflow in a bounds check, enabling an attacker to specify an arbitrary (out-of-bounds) offset for a subsequent memory read. A crafted SSH server may be able to disclose sensitive information or cause a denial of service condition on the client system when a user connects to the server.

References