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.

An update of the libyang package has been released.

The remote Redhat Enterprise Linux 9 host has one or more packages installed that are affected by a vulnerability that has been acknowledged by the vendor but will not be patched.

  - libyang: NULL pointer dereference via lysp_stmt_validate_value at lys_parse_mem.c (CVE-2023-26917)

Note that Nessus has not tested for this issue but has instead relied on the package manager's report that the package is installed.

The remote Redhat Enterprise Linux 8 host has one or more packages installed that are affected by multiple vulnerabilities that have been acknowledged by the vendor but will not be patched.

  - libyang: NULL pointer dereference in read_yin_leaf() (CVE-2021-28906)

  - libyang: NULL pointer dereference via lysp_stmt_validate_value at lys_parse_mem.c (CVE-2023-26917)

  - 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. (CVE-2021-28902)

Note that Nessus has not tested for these issues but has instead relied on the package manager's report that the package is installed.

This plugin has been deprecated as it does not adhere to established standards for this style of check.

ID	Name	Product	Family	Severity
203155	Photon OS 4.0: Libyang PHSA-2023-4.0-0380	Nessus	PhotonOS Local Security Checks	high
199477	RHEL 9 : libyang (Unpatched Vulnerability)	Nessus	Red Hat Local Security Checks	high
199463	RHEL 8 : libyang (Unpatched Vulnerability)	Nessus	Red Hat Local Security Checks	high
195699	RHEL 8 : libyang (Unpatched Vulnerability) (deprecated)	Nessus	Red Hat Local Security Checks	high
195693	RHEL 9 : libyang (Unpatched Vulnerability) (deprecated)	Nessus	Red Hat Local Security Checks	high

Detections

Analytics

CVE-2023-26917

high

Tenable Plugins

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high

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high