CVE-2019-20391

An invalid memory access flaw is present in libyang before v1.0-r3 in the function resolve_feature_value() when an if-feature statement is used inside a bit. Applications that use libyang to parse untrusted input yang files may crash.

CVSS v3.0 6.5 MEDIUM
CVSS v2.0 4.3 MEDIUM

6.5^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

4.3^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:N/I:N/A:P

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://github.com/CESNET/libyang/commit/bdb596ddc07596fa212f231135b87d0b9178f6f8	Patch Third Party Advisory
https://github.com/CESNET/libyang/compare/v1.0-r2...v1.0-r3	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1793934	Issue Tracking Patch Third Party Advisory
https://github.com/CESNET/libyang/issues/772	Exploit Third Party Advisory

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:cesnet:libyang:0.11:r1::::::
	cpe:2.3:a:cesnet:libyang:0.11:r2::::::
	cpe:2.3:a:cesnet:libyang:0.12:r1::::::
	cpe:2.3:a:cesnet:libyang:0.12:r2::::::
	cpe:2.3:a:cesnet:libyang:0.13:r1::::::
	cpe:2.3:a:cesnet:libyang:0.13:r2::::::
	cpe:2.3:a:cesnet:libyang:0.14:r1::::::
	cpe:2.3:a:cesnet:libyang:0.15:r1::::::
	cpe:2.3:a:cesnet:libyang:0.16:r1::::::
	cpe:2.3:a:cesnet:libyang:0.16:r2::::::
	cpe:2.3:a:cesnet:libyang:0.16:r3::::::
	cpe:2.3:a:cesnet:libyang:1.0:r1::::::
	cpe:2.3:a:cesnet:libyang:1.0:r2::::::

Information

Published : 2020-01-22 14:15

Updated : 2020-01-23 13:16

NVD link : CVE-2019-20391

Mitre link : CVE-2019-20391

JSON object : View

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

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Products Affected

cesnet

libyang

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