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cesnet libyang 1.0 vulnerabilities and exploits
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6.5
CVSSv3
CVE-2019-20398
A NULL pointer dereference is present in libyang before v1.0-r3 in the function lys_extension_instances_free() due to a copy of unresolved extensions in lys_restr_dup(). Applications that use libyang to parse untrusted input yang files may crash.
Cesnet Libyang 1.0
Cesnet Libyang 0.16
Cesnet Libyang 0.13
Cesnet Libyang 0.12
Cesnet Libyang 0.11
Cesnet Libyang 0.14
Cesnet Libyang 0.15
6.5
CVSSv3
CVE-2019-20391
An invalid memory access flaw is present in libyang before v1.0-r3 in the function resolve_feature_value() when an if-feature statement is used inside a bit. Applications that use libyang to parse untrusted input yang files may crash.
Cesnet Libyang 1.0
Cesnet Libyang 0.16
Cesnet Libyang 0.13
Cesnet Libyang 0.12
Cesnet Libyang 0.11
Cesnet Libyang 0.14
Cesnet Libyang 0.15
8.8
CVSSv3
CVE-2019-20394
A double-free is present in libyang before v1.0-r3 in the function yyparse() when a type statement in used in a notification statement. Applications that use libyang to parse untrusted input yang files may be vulnerable to this flaw, which would cause a crash or potentially code ...
Cesnet Libyang 1.0
Cesnet Libyang 0.16
Cesnet Libyang 0.13
Cesnet Libyang 0.12
Cesnet Libyang 0.11
Cesnet Libyang 0.14
Cesnet Libyang 0.15
9.8
CVSSv3
CVE-2019-19333
In all versions of libyang prior to 1.0-r5, a stack-based buffer overflow exists in the way libyang parses YANG files with a leaf of type "bits". An application that uses libyang to parse untrusted YANG files may be vulnerable to this flaw, which would allow an maliciou...
Cesnet Libyang 1.0
Cesnet Libyang 0.16
Cesnet Libyang 0.13
Cesnet Libyang 0.12
Cesnet Libyang 0.11
Cesnet Libyang 0.14
Cesnet Libyang 0.15
Redhat Enterprise Linux 8.0
9.8
CVSSv3
CVE-2019-19334
In all versions of libyang prior to 1.0-r5, a stack-based buffer overflow exists in the way libyang parses YANG files with a leaf of type "identityref". An application that uses libyang to parse untrusted YANG files may be vulnerable to this flaw, which would allow an m...
Cesnet Libyang 1.0
Cesnet Libyang 0.16
Cesnet Libyang 0.13
Cesnet Libyang 0.12
Cesnet Libyang 0.11
Cesnet Libyang 0.14
Cesnet Libyang 0.15
Redhat Enterprise Linux 8.0
Fedoraproject Fedora 31
CVSSv3
CVSSv2
CVSSv3
VMScore
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