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ubuntucveUbuntu.comUB:CVE-2019-3859
HistoryMar 21, 2019 - 12:00 a.m.

CVE-2019-3859

2019-03-2100:00:00
ubuntu.com
ubuntu.com
7

9.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

6.4 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.021 Low

EPSS

Percentile

88.9%

JSON

An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the
_libssh2_packet_require and _libssh2_packet_requirev functions. A remote
attacker who compromises a SSH server may be able to cause a Denial of
Service or read data in the client memory.

Notes

Author Note
msalvatore Upstream fix causes regression: https://lists.opensuse.org/opensuse-security-announce/2019-04/msg00102.html Follow up patch: https://github.com/libssh2/libssh2/commit/ca2744483eac4e707084df5fc55cc69d57571dde
OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlibssh2< anyUNKNOWN
ubuntu14.04noarchlibssh2< 1.4.3-2ubuntu0.2+esm2) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu16.04noarchlibssh2< 1.5.0-2ubuntu0.1+esm1UNKNOWN

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9.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

6.4 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.021 Low

EPSS

Percentile

88.9%

JSON
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