[Buildroot] [PATCH] package/libyang: security bump to version 1.0.240

[Peter Korsgaard]

>>>>> "Peter" == Peter Korsgaard <peter at korsgaard.com> writes:

 > Fixes the following security issues:
 > - CVE-2021-28902: 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-2021-28903: 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.

 > - CVE-2021-28904: 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.

 > - CVE-2021-28905: 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).

 > - CVE-2021-28906: 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.

 > Signed-off-by: Peter Korsgaard <peter at korsgaard.com>

Committed to 2021.02.x, 2021.05.x and 2021.08.x, thanks.

-- 
Bye, Peter Korsgaard