Vulnerability Details : CVE-2019-3859
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.
Vulnerability category: Denial of service
Products affected by CVE-2019-3859
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:28:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*
- cpe:2.3:o:opensuse:leap:42.3:*:*:*:*:*:*:*
- cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:*
- cpe:2.3:a:libssh2:libssh2:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-3859
1.52%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 88 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-3859
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.4
|
MEDIUM | AV:N/AC:L/Au:N/C:P/I:N/A:P |
10.0
|
4.9
|
NIST | |
|
9.1
|
CRITICAL | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |
3.9
|
5.2
|
NIST | |
|
5.0
|
MEDIUM | CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L |
1.6
|
3.4
|
Red Hat, Inc. |
CWE ids for CVE-2019-3859
-
The product reads data past the end, or before the beginning, of the intended buffer.Assigned by:
- nvd@nist.gov (Primary)
- secalert@redhat.com (Secondary)
References for CVE-2019-3859
-
https://lists.debian.org/debian-lts-announce/2019/07/msg00024.html
[SECURITY] [DLA 1730-3] libssh2 regression update
-
http://packetstormsecurity.com/files/152136/Slackware-Security-Advisory-libssh2-Updates.html
Slackware Security Advisory - libssh2 Updates ≈ Packet StormPatch;Third Party Advisory;VDB Entry
-
https://security.netapp.com/advisory/ntap-20190327-0005/
March 2019 Libssh2 Vulnerabilities in NetApp Products | NetApp Product SecurityThird Party Advisory
-
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.html
[security-announce] openSUSE-SU-2019:1109-1: moderate: Security update fMailing List;Third Party Advisory
-
https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
Page not found | Oracle
-
https://www.debian.org/security/2019/dsa-4431
Debian -- Security Information -- DSA-4431-1 libssh2Third Party Advisory
-
https://seclists.org/bugtraq/2019/Apr/25
Bugtraq: [SECURITY] [DSA 4431-1] libssh2 security updateMailing List;Third Party Advisory
-
http://www.openwall.com/lists/oss-security/2019/03/18/3
oss-security - [SECURITY ADVISORIES] libssh2Mailing List;Patch;Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2019/04/msg00006.html
[SECURITY] [DLA 1730-2] libssh2 regression updateMailing List;Third Party Advisory
-
https://www.libssh2.org/CVE-2019-3859.html
libssh2 Security Advisory: CVE-2019-3859Vendor Advisory
-
https://seclists.org/bugtraq/2019/Mar/25
Bugtraq: [slackware-security] libssh2 (SSA:2019-077-01)Mailing List;Patch;Third Party Advisory
-
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00103.html
[security-announce] openSUSE-SU-2019:1291-1: important: Security updateMailing List;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XCWEA5ZCLKRDUK62QVVYMFWLWKOPX3LO/
[SECURITY] Fedora 29 Update: libssh2-1.8.1-1.fc29 - package-announce - Fedora Mailing-ListsRelease Notes;Third Party Advisory
-
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3859
1687307 – (CVE-2019-3859) CVE-2019-3859 libssh2: Unchecked use of _libssh2_packet_require and _libssh2_packet_requirev resulting in out-of-bounds readIssue Tracking;Patch;Third Party Advisory
-
https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2019-767
Broadcom Inc. | Connecting EverythingThird Party Advisory
-
https://lists.debian.org/debian-lts-announce/2019/03/msg00032.html
[SECURITY] [DLA 1730-1] libssh2 security updateMailing List;Third Party Advisory
-
http://www.securityfocus.com/bid/107485
libssh2 Multiple Security VulnerabilitiesThird Party Advisory;VDB Entry
-
http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html
[security-announce] openSUSE-SU-2019:1075-1: moderate: Security update fMailing List;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/
[SECURITY] Fedora 28 Update: libssh2-1.8.1-1.fc28 - package-announce - Fedora Mailing-ListsMailing List;Release Notes;Third Party Advisory
-
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00102.html
[security-announce] openSUSE-SU-2019:1290-1: important: Security updateMailing List;Third Party Advisory
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