OpenConnect through 8.08 mishandles negative return values from X509_check_ function calls, which might assist attackers in performing man-in-the-middle attacks.

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:0317-1 advisory.

  - OpenConnect through 8.08 mishandles negative return values from X509_check_ function calls, which might     assist attackers in performing man-in-the-middle attacks. (CVE-2020-12105)

  - OpenConnect 8.09 has a buffer overflow, causing a denial of service (application crash) or possibly     unspecified other impact, via crafted certificate data to get_cert_name in gnutls.c. (CVE-2020-12823)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote host is affected by the vulnerability described in GLSA-202006-15 (OpenConnect: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in OpenConnect. Please       review the CVE identifiers referenced below for details.
  Impact :

    Please review the referenced CVE identifiers for details.
  Workaround :

    There is no known workaround at this time.

This update for openconnect fixes the following issues :

Security issue fixed :

  - CVE-2020-12105: Fixed the improper handling of negative     return values from X509_check_ function calls that might     have allowed MITM attacks (bsc#1170452).

This update was imported from the SUSE:SLE-15:Update update project.

This update for openconnect fixes the following issues :

Security issue fixed :

CVE-2020-12105: Fixed the improper handling of negative return values from X509_check_ function calls that might have allowed MITM attacks (bsc#1170452).

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
189956	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : openconnect (SUSE-SU-2024:0317-1)	Nessus	SuSE Local Security Checks	critical
137452	GLSA-202006-15 : OpenConnect: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	critical
136883	openSUSE Security Update : openconnect (openSUSE-2020-694)	Nessus	SuSE Local Security Checks	medium
136796	SUSE SLED15 / SLES15 Security Update : openconnect (SUSE-SU-2020:1337-1)	Nessus	SuSE Local Security Checks	medium

Detections

Analytics

CVE-2020-12105

medium

Tenable Plugins

critical

critical

medium

medium