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Ubuntu.comUB:CVE-2019-16748

HistorySep 24, 2019 - 12:00 a.m.

CVE-2019-16748

2019-09-2400:00:00

ubuntu.com

7.5 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

0.002 Low

EPSS

Percentile

51.5%

JSON

In wolfSSL through 4.1.0, there is a missing sanity check of memory
accesses in parsing ASN.1 certificate data while handshaking. Specifically,
there is a one-byte heap-based buffer over-read in CheckCertSignature_ex in
wolfcrypt/src/asn.c.

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchwolfssl< anyUNKNOWN
ubuntu16.04noarchwolfssl< anyUNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	wolfssl	< any	UNKNOWN
ubuntu	16.04	noarch	wolfssl	< any	UNKNOWN

References

github.com/wolfSSL/wolfssl/issues/2459

launchpad.net/bugs/cve/CVE-2019-16748

nvd.nist.gov/vuln/detail/CVE-2019-16748

security-tracker.debian.org/tracker/CVE-2019-16748

www.cve.org/CVERecord?id=CVE-2019-16748

7.5 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

0.002 Low

EPSS

Percentile

51.5%

JSON

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