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CVSSv2

CVE-2021-28902

Published: 20/05/2021 Updated: 05/04/2022
CVSS v2 Base Score: 5 | Impact Score: 2.9 | Exploitability Score: 10
CVSS v3 Base Score: 7.5 | Impact Score: 3.6 | Exploitability Score: 3.9
VMScore: 445
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
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Vulnerability Summary

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.

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cesnet libyang

Vendor Advisories

Debian CVElist Bug Report Logs: CVE-2021-28902 CVE-2021-28903 CVE-2021-28904 CVE-2021-28905 CVE-2021-28906
Debian Bug report logs - #989060 CVE-2021-28902 CVE-2021-28903 CVE-2021-28904 CVE-2021-28905 CVE-2021-28906 Package: src:libyang; Maintainer for src:libyang is David Lamparter &lt;equinox-debian@diac24net&gt;; Reported by: Moritz Muehlenhoff &lt;jmm@debianorg&gt; Date: Mon, 24 May 2021 20:51:02 UTC Severity: important Tags: se ...

References

CWE-252https://github.com/CESNET/libyang/issues/1454https://security.gentoo.org/glsa/202107-54https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=989060https://nvd.nist.gov
CVSSv2
CVSSv2
CVSSv3
VMScore
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