Executive Summary

This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Titleopenconnect security update
NameDSA-4607First vendor Publication2020-01-20
VendorDebianLast vendor Modification2020-01-20
Severity (Vendor) N/ARevision1

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score7.5Attack RangeNetwork
Cvss Impact Score6.4Attack ComplexityLow
Cvss Expoit Score10AuthenticationNone Required
Calculate full CVSS 2.0 Vectors scores


Lukas Kupczyk reported a vulnerability in the handling of chunked HTTP in openconnect, an open client for Cisco AnyConnect, Pulse and GlobalProtect VPN. A malicious HTTP server (after having accepted its identity certificate), can provide bogus chunk lengths for chunked HTTP encoding and cause a heap-based buffer overflow.

For the oldstable distribution (stretch), this problem has been fixed in version 7.08-1+deb9u1.

For the stable distribution (buster), this problem has been fixed in version 8.02-1+deb10u1.

We recommend that you upgrade your openconnect packages.

For the detailed security status of openconnect please refer to its security tracker page at: https://security-tracker.debian.org/tracker/openconnect

Original Source

Url : http://www.debian.org/security/2020/dsa-4607

CWE : Common Weakness Enumeration

100 %CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') (CWE/SANS Top 25)

CPE : Common Platform Enumeration


Alert History

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2020-01-21 00:19:03
  • First insertion