Test ID:	1.3.6.1.4.1.25623.1.0.891991
Category:	Debian Local Security Checks
Title:	Debian: Security Advisory (DLA-1991-1)
Summary:	The remote host is missing an update for the Debian 'libssh2' package(s) announced via the DLA-1991-1 advisory.
Description:	Summary: The remote host is missing an update for the Debian 'libssh2' package(s) announced via the DLA-1991-1 advisory. Vulnerability Insight: In libssh2, 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 For Debian 8 Jessie, this problem has been fixed in version 1.4.3-4.1+deb8u6. We recommend that you upgrade your libssh2 packages. Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: [link moved to references] Affected Software/OS: 'libssh2' package(s) on Debian 8. Solution: Please install the updated package(s). CVSS Score: 5.8 CVSS Vector: AV:N/AC:M/Au:N/C:P/I:N/A:P
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2019-17498 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TY7EEE34RFKCTXTMBQQWWSLXZWSCXNDB/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/22H4Q5XMGS3QNSA7OCL3U7UQZ4NXMR5O/ 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 SuSE Security Announcement: openSUSE-SU-2019:2483 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00026.html
Copyright	Copyright (C) 2019 Greenbone AG

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