CVE-2019-17498
Libssh2 SSH Integer Overflow Memory Disclosure
Description
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.
INFO
Published Date :
Oct. 21, 2019, 10:15 p.m.
Last Modified :
Nov. 7, 2023, 3:06 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.2
Exploitability Score :
2.8
Public PoC/Exploit Available at Github
CVE-2019-17498 has a 5 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2019-17498
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2019-17498.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
cits3007 assignments
C
Secure coding project, research on CVE-2019-17498 and implement a player score function written in C.
C
Map Vulnerabilities into Different Layers of the Container Image
Python
2019年天融信阿尔法实验室在微信公众号发布的所有安全资讯汇总
IoT CVEs as abnormal events to evaluate a real-time host-based IDS. https://doi.org/10.1016/j.future.2022.03.001
iot cves ids dataset anomaly-detection real-time stream-processing host-based security
Shell Dockerfile Python Ruby
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2019-17498 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2019-17498 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TY7EEE34RFKCTXTMBQQWWSLXZWSCXNDB/ [No types assigned] Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/22H4Q5XMGS3QNSA7OCL3U7UQZ4NXMR5O/ [No types assigned] Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/TY7EEE34RFKCTXTMBQQWWSLXZWSCXNDB/ Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/22H4Q5XMGS3QNSA7OCL3U7UQZ4NXMR5O/ -
CVE Modified by [email protected]
Sep. 08, 2023
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2023/09/msg00006.html [No Types Assigned] -
CVE Modified by [email protected]
Jun. 12, 2023
Action Type Old Value New Value Added Reference http://packetstormsecurity.com/files/172835/libssh2-1.9.0-Out-Of-Bounds-Read.html [No Types Assigned] -
Modified Analysis by [email protected]
Oct. 27, 2022
Action Type Old Value New Value Changed Reference Type https://security.netapp.com/advisory/ntap-20220909-0004/ No Types Assigned https://security.netapp.com/advisory/ntap-20220909-0004/ Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:* *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:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:bootstrap_os:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:hci_compute_node:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Sep. 09, 2022
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20220909-0004/ [No Types Assigned] -
Modified Analysis by [email protected]
Mar. 09, 2022
Action Type Old Value New Value Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00026.html Third Party Advisory http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00026.html Mailing List, Third Party Advisory Changed Reference Type https://blog.semmle.com/libssh2-integer-overflow-CVE-2019-17498/ Exploit, Third Party Advisory https://blog.semmle.com/libssh2-integer-overflow-CVE-2019-17498/ Broken Link Changed Reference Type https://github.com/libssh2/libssh2/commit/dedcbd106f8e52d5586b0205bc7677e4c9868f9c Patch, Vendor Advisory https://github.com/libssh2/libssh2/commit/dedcbd106f8e52d5586b0205bc7677e4c9868f9c Patch, Third Party Advisory Changed Reference Type https://lists.debian.org/debian-lts-announce/2019/11/msg00010.html Third Party Advisory https://lists.debian.org/debian-lts-announce/2019/11/msg00010.html Mailing List, Third Party Advisory Changed Reference Type https://lists.debian.org/debian-lts-announce/2021/12/msg00013.html No Types Assigned https://lists.debian.org/debian-lts-announce/2021/12/msg00013.html Mailing List, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/22H4Q5XMGS3QNSA7OCL3U7UQZ4NXMR5O/ Third Party Advisory https://lists.fedoraproject.org/archives/list/[email protected]/message/22H4Q5XMGS3QNSA7OCL3U7UQZ4NXMR5O/ Mailing List, Third Party Advisory Changed CPE Configuration OR *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* *cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* OR *cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Dec. 18, 2021
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2021/12/msg00013.html [No Types Assigned] -
Modified Analysis by [email protected]
Oct. 14, 2020
Action Type Old Value New Value Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00026.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00026.html Third Party Advisory Changed Reference Type https://github.com/libssh2/libssh2/commit/dedcbd106f8e52d5586b0205bc7677e4c9868f9c No Types Assigned https://github.com/libssh2/libssh2/commit/dedcbd106f8e52d5586b0205bc7677e4c9868f9c Patch, Vendor Advisory Changed Reference Type https://lists.debian.org/debian-lts-announce/2019/11/msg00010.html No Types Assigned https://lists.debian.org/debian-lts-announce/2019/11/msg00010.html Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/22H4Q5XMGS3QNSA7OCL3U7UQZ4NXMR5O/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/22H4Q5XMGS3QNSA7OCL3U7UQZ4NXMR5O/ Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/TY7EEE34RFKCTXTMBQQWWSLXZWSCXNDB/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/TY7EEE34RFKCTXTMBQQWWSLXZWSCXNDB/ Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* *cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Oct. 08, 2020
Action Type Old Value New Value Removed Reference https://github.com/libssh2/libssh2/pull/402/commits/1c6fa92b77e34d089493fe6d3e2c6c8775858b94 [Patch, Third Party Advisory] Added Reference https://github.com/libssh2/libssh2/commit/dedcbd106f8e52d5586b0205bc7677e4c9868f9c [No Types Assigned] -
CVE Modified by [email protected]
Nov. 16, 2019
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/22H4Q5XMGS3QNSA7OCL3U7UQZ4NXMR5O/ [No Types Assigned] -
CVE Modified by [email protected]
Nov. 13, 2019
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2019/11/msg00010.html [No Types Assigned] -
CVE Modified by [email protected]
Nov. 11, 2019
Action Type Old Value New Value Added Reference http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00026.html [No Types Assigned] -
CVE Modified by [email protected]
Nov. 07, 2019
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/TY7EEE34RFKCTXTMBQQWWSLXZWSCXNDB/ [No Types Assigned] -
Initial Analysis by [email protected]
Oct. 23, 2019
Action Type Old Value New Value Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:N/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H Changed Reference Type https://blog.semmle.com/libssh2-integer-overflow-CVE-2019-17498/ No Types Assigned https://blog.semmle.com/libssh2-integer-overflow-CVE-2019-17498/ Exploit, Third Party Advisory Changed Reference Type https://github.com/kevinbackhouse/SecurityExploits/tree/8cbdbbe6363510f7d9ceec685373da12e6fc752d/libssh2/out_of_bounds_read_disconnect_CVE-2019-17498 No Types Assigned https://github.com/kevinbackhouse/SecurityExploits/tree/8cbdbbe6363510f7d9ceec685373da12e6fc752d/libssh2/out_of_bounds_read_disconnect_CVE-2019-17498 Exploit, Third Party Advisory Changed Reference Type https://github.com/libssh2/libssh2/blob/42d37aa63129a1b2644bf6495198923534322d64/src/packet.c#L480 No Types Assigned https://github.com/libssh2/libssh2/blob/42d37aa63129a1b2644bf6495198923534322d64/src/packet.c#L480 Exploit, Third Party Advisory Changed Reference Type https://github.com/libssh2/libssh2/pull/402/commits/1c6fa92b77e34d089493fe6d3e2c6c8775858b94 No Types Assigned https://github.com/libssh2/libssh2/pull/402/commits/1c6fa92b77e34d089493fe6d3e2c6c8775858b94 Patch, Third Party Advisory Added CWE NIST CWE-190 Added CPE Configuration OR *cpe:2.3:a:libssh2:libssh2:*:*:*:*:*:*:*:* versions up to (including) 1.9.0
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2019-17498 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2019-17498
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.41 }} 0.05%
score
0.70734
percentile