Cesnet: >> Libyang Security Vulnerabilities
libyang from v2.0.164 to v2.1.30 was discovered to contain a NULL pointer dereference via the function lysp_stmt_validate_value at lys_parse_mem.c.
CVSS Score
7.5
EPSS Score
0.001
Published
2023-04-11
libyang from v2.0.164 to v2.1.30 was discovered to contain a NULL pointer dereference via the function lys_parse_mem at lys_parse_mem.c.
CVSS Score
5.3
EPSS Score
0.001
Published
2023-04-03
In function read_yin_container() in libyang <= v1.0.225, it doesn't check whether the value of retval->ext[r] is NULL. In some cases, it can be NULL, which leads to the operation of retval->ext[r]->flags that results in a crash.
CVSS Score
7.5
EPSS Score
0.001
Published
2021-05-20
A stack overflow in libyang <= v1.0.225 can cause a denial of service through function lyxml_parse_mem(). lyxml_parse_elem() function will be called recursively, which will consume stack space and lead to crash.
CVSS Score
7.5
EPSS Score
0.009
Published
2021-05-20
In function ext_get_plugin() in libyang <= v1.0.225, it doesn't check whether the value of revision is NULL. If revision is NULL, the operation of strcmp(revision, ext_plugins[u].revision) will lead to a crash.
CVSS Score
7.5
EPSS Score
0.001
Published
2021-05-20
In function lys_node_free() in libyang <= v1.0.225, it asserts that the value of node->module can't be NULL. But in some cases, node->module can be null, which triggers a reachable assertion (CWE-617).
CVSS Score
7.5
EPSS Score
0.001
Published
2021-05-20
In function read_yin_leaf() in libyang <= v1.0.225, it doesn't check whether the value of retval->ext[r] is NULL. In some cases, it can be NULL, which leads to the operation of retval->ext[r]->flags that results in a crash.
CVSS Score
7.5
EPSS Score
0.001
Published
2021-05-20
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.
CVSS Score
6.5
EPSS Score
0.001
Published
2020-01-22
An invalid memory access flaw is present in libyang before v1.0-r1 in the function resolve_feature_value() when an if-feature statement is used inside a list key node, and the feature used is not defined. Applications that use libyang to parse untrusted input yang files may crash.
CVSS Score
6.5
EPSS Score
0.001
Published
2020-01-22
A double-free is present in libyang before v1.0-r1 in the function yyparse() when an empty description is used. Applications that use libyang to parse untrusted input yang files may be vulnerable to this flaw, which would cause a crash or potentially code execution.
CVSS Score
8.8
EPSS Score
0.002
Published
2020-01-22
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