Stack-based Buffer Overflow in libyang Affects Multiple Versions
CVE-2019-19333

8.1HIGH

Key Information:

Vendor

Red Hat
Status
Libyang
Vendor
CVE Published:
6 December 2019

What is CVE-2019-19333?

A stack-based buffer overflow vulnerability exists in libyang prior to version 1.0-r5, triggered by improper parsing of YANG files containing a leaf of type 'bits'. When an application utilizes libyang to process untrusted YANG files, it becomes susceptible to this flaw. An attacker can exploit this vulnerability to induce a denial of service or potentially execute arbitrary code on the affected system.

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Affected Version(s)

libyang libyang all versions before 1.0-r5

References

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-19333
x_refsource_CONFIRM
https://github.com/CESNET/libyang/commit/f6d684ade99dd37b...
x_refsource_CONFIRM
https://lists.fedoraproject.org/archives/list/package-ann...
vendor-advisoryx_refsource_FEDORA

CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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