Vulnerability Details CVE-2019-17498
In libssh2 v1.9.0 and earlier versions, the SSH_MSG_DISCONNECT logic in packet.c has an integer overflow in a bounds check, enabling an attacker to specify an arbitrary (out-of-bounds) offset for a subsequent memory read. A crafted SSH server may be able to disclose sensitive information or cause a denial of service condition on the client system when a user connects to the server.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.012
EPSS Ranking 77.9%
CVSS Severity
CVSS v3 Score 8.1
CVSS v2 Score 5.8
References
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00026.html
- http://packetstormsecurity.com/files/172835/libssh2-1.9.0-Out-Of-Bounds-Read.html
- https://blog.semmle.com/libssh2-integer-overflow-CVE-2019-17498/
- https://github.com/kevinbackhouse/SecurityExploits/tree/8cbdbbe6363510f7d9ceec685373da12e6fc752d/libssh2/out_of_bounds_read_disconnect_CVE-2019-17498
- https://github.com/libssh2/libssh2/blob/42d37aa63129a1b2644bf6495198923534322d64/src/packet.c#L480
- https://github.com/libssh2/libssh2/commit/dedcbd106f8e52d5586b0205bc7677e4c9868f9c
- https://lists.debian.org/debian-lts-announce/2019/11/msg00010.html
- https://lists.debian.org/debian-lts-announce/2021/12/msg00013.html
- https://lists.debian.org/debian-lts-announce/2023/09/msg00006.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/22H4Q5XMGS3QNSA7OCL3U7UQZ4NXMR5O/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TY7EEE34RFKCTXTMBQQWWSLXZWSCXNDB/
- https://security.netapp.com/advisory/ntap-20220909-0004/
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00026.html
- http://packetstormsecurity.com/files/172835/libssh2-1.9.0-Out-Of-Bounds-Read.html
- https://blog.semmle.com/libssh2-integer-overflow-CVE-2019-17498/
- https://github.com/kevinbackhouse/SecurityExploits/tree/8cbdbbe6363510f7d9ceec685373da12e6fc752d/libssh2/out_of_bounds_read_disconnect_CVE-2019-17498
- https://github.com/libssh2/libssh2/blob/42d37aa63129a1b2644bf6495198923534322d64/src/packet.c#L480
- https://github.com/libssh2/libssh2/commit/dedcbd106f8e52d5586b0205bc7677e4c9868f9c
- https://lists.debian.org/debian-lts-announce/2019/11/msg00010.html
- https://lists.debian.org/debian-lts-announce/2021/12/msg00013.html
- https://lists.debian.org/debian-lts-announce/2023/09/msg00006.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/22H4Q5XMGS3QNSA7OCL3U7UQZ4NXMR5O/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TY7EEE34RFKCTXTMBQQWWSLXZWSCXNDB/
- https://security.netapp.com/advisory/ntap-20220909-0004/
Products affected by CVE-2019-17498
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cpe:2.3:a:libssh2:libssh2:-
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cpe:2.3:a:libssh2:libssh2:0.1
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cpe:2.3:a:libssh2:libssh2:0.10
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cpe:2.3:a:libssh2:libssh2:0.11
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cpe:2.3:a:libssh2:libssh2:0.12
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cpe:2.3:a:libssh2:libssh2:0.13
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cpe:2.3:a:libssh2:libssh2:0.14
-
cpe:2.3:a:libssh2:libssh2:0.15
-
cpe:2.3:a:libssh2:libssh2:0.16
-
cpe:2.3:a:libssh2:libssh2:0.17
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cpe:2.3:a:libssh2:libssh2:0.18
-
cpe:2.3:a:libssh2:libssh2:0.3
-
cpe:2.3:a:libssh2:libssh2:0.5
-
cpe:2.3:a:libssh2:libssh2:0.6
-
cpe:2.3:a:libssh2:libssh2:0.7
-
cpe:2.3:a:libssh2:libssh2:0.8
-
cpe:2.3:a:libssh2:libssh2:1.0
-
cpe:2.3:a:libssh2:libssh2:1.1
-
cpe:2.3:a:libssh2:libssh2:1.2
-
cpe:2.3:a:libssh2:libssh2:1.2.1
-
cpe:2.3:a:libssh2:libssh2:1.2.2
-
cpe:2.3:a:libssh2:libssh2:1.2.3
-
cpe:2.3:a:libssh2:libssh2:1.2.4
-
cpe:2.3:a:libssh2:libssh2:1.2.5
-
cpe:2.3:a:libssh2:libssh2:1.2.6
-
cpe:2.3:a:libssh2:libssh2:1.2.7
-
cpe:2.3:a:libssh2:libssh2:1.2.8
-
cpe:2.3:a:libssh2:libssh2:1.2.9
-
cpe:2.3:a:libssh2:libssh2:1.3.0
-
cpe:2.3:a:libssh2:libssh2:1.4.0
-
cpe:2.3:a:libssh2:libssh2:1.4.1
-
cpe:2.3:a:libssh2:libssh2:1.4.2
-
cpe:2.3:a:libssh2:libssh2:1.4.3
-
cpe:2.3:a:libssh2:libssh2:1.5.0
-
cpe:2.3:a:libssh2:libssh2:1.6.0
-
cpe:2.3:a:libssh2:libssh2:1.7.0
-
cpe:2.3:a:libssh2:libssh2:1.8.0
-
cpe:2.3:a:libssh2:libssh2:1.8.1
-
cpe:2.3:a:libssh2:libssh2:1.8.2
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cpe:2.3:a:libssh2:libssh2:1.9.0
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cpe:2.3:a:netapp:active_iq_unified_manager:-
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cpe:2.3:a:netapp:element_software:-
-
cpe:2.3:a:netapp:hci_management_node:-
-
cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-
-
cpe:2.3:a:netapp:solidfire:-
-
cpe:2.3:h:netapp:hci_compute_node:-
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cpe:2.3:o:debian:debian_linux:8.0
-
cpe:2.3:o:debian:debian_linux:9.0
-
cpe:2.3:o:fedoraproject:fedora:30
-
cpe:2.3:o:fedoraproject:fedora:31
-
cpe:2.3:o:netapp:bootstrap_os:-
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cpe:2.3:o:opensuse:leap:15.1