Buffer Overflow Vulnerability in Libyang Affecting Parsing of YANG Files
CVE-2019-19334

8.1HIGH

Key Information:

Vendor

Red Hat
Status
Libyang
Vendor
CVE Published:
6 December 2019

What is CVE-2019-19334?

A buffer overflow vulnerability exists in libyang, impacting all versions before 1.0-r5. This flaw arises during the parsing of YANG files that contain a 'leaf' of the type 'identityref'. Applications that utilize libyang to process untrusted YANG files are susceptible to this issue, which could potentially allow attackers to instigate a denial of service or execute arbitrary code.

Affected Version(s)

libyang libyang all versions before 1.0-r5

References

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-19334
x_refsource_CONFIRM
https://github.com/CESNET/libyang/commit/6980afae2ff9fcd6...
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

.