Vulnerabilities (CVE)

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Filtered by product Openconnect
Total 10 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2020-12823 4 Debian, Fedoraproject, Infradead and 1 more 4 Debian Linux, Fedora, Openconnect and 1 more 2023-01-27 7.5 HIGH 9.8 CRITICAL
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-2020-12105 2 Infradead, Opensuse 2 Openconnect, Leap 2022-05-03 4.3 MEDIUM 5.9 MEDIUM
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-2019-16239 2 Fedoraproject, Infradead 2 Fedora, Openconnect 2020-10-07 7.5 HIGH 9.8 CRITICAL
process_http_response in OpenConnect before 8.05 has a Buffer Overflow when a malicious server uses HTTP chunked encoding with crafted chunk sizes.
CVE-2013-7098 1 Infradead 1 Openconnect 2020-02-20 7.5 HIGH 9.8 CRITICAL
OpenConnect VPN client with GnuTLS before 5.02 contains a heap overflow if MTU is increased on reconnection.
CVE-2012-3291 1 Infradead 1 Openconnect 2018-01-04 7.8 HIGH N/A
Heap-based buffer overflow in OpenConnect 3.18 allows remote servers to cause a denial of service via a crafted greeting banner.
CVE-2012-6128 1 Infradead 1 Openconnect 2017-08-28 5.0 MEDIUM N/A
Multiple stack-based buffer overflows in http.c in OpenConnect before 4.08 allow remote VPN gateways to cause a denial of service (application crash) via a long (1) hostname, (2) path, or (3) cookie list in a response.
CVE-2010-3902 1 Infradead 1 Openconnect 2011-04-08 5.0 MEDIUM N/A
OpenConnect before 2.26 places the webvpn cookie value in the debugging output, which might allow remote attackers to obtain sensitive information by reading this output, as demonstrated by output posted to the public openconnect-devel mailing list.
CVE-2010-3903 1 Infradead 1 Openconnect 2010-11-11 5.0 MEDIUM N/A
Unspecified vulnerability in OpenConnect before 2.23 allows remote AnyConnect SSL VPN servers to cause a denial of service (application crash) via a 404 HTTP status code.
CVE-2009-5009 1 Infradead 1 Openconnect 2010-10-14 5.0 MEDIUM N/A
Double free vulnerability in OpenConnect before 1.40 might allow remote AnyConnect SSL VPN servers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted DTLS Cipher option during a reconnect operation.
CVE-2010-3901 1 Infradead 1 Openconnect 2010-10-13 6.4 MEDIUM N/A
OpenConnect before 2.25 does not properly validate X.509 certificates, which allows man-in-the-middle attackers to spoof arbitrary AnyConnect SSL VPN servers via a crafted server certificate that (1) does not correspond to the server hostname or (2) is presented in circumstances involving a missing --cafile configuration option.