Vulnerabilities > CVE-2019-3861 - Out-of-bounds Read vulnerability in multiple products
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
HIGH Integrity impact
NONE Availability impact
HIGH Summary
An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the way SSH packets with a padding length value greater than the packet length are parsed. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Overread Buffers An adversary attacks a target by providing input that causes an application to read beyond the boundary of a defined buffer. This typically occurs when a value influencing where to start or stop reading is set to reflect positions outside of the valid memory location of the buffer. This type of attack may result in exposure of sensitive information, a system crash, or arbitrary code execution.
Nessus
NASL family NewStart CGSL Local Security Checks NASL id NEWSTART_CGSL_NS-SA-2019-0205_LIBSSH2.NASL description The remote NewStart CGSL host, running version CORE 5.04 / MAIN 5.04, has libssh2 packages installed that are affected by multiple vulnerabilities: - An out of bounds read flaw was discovered in libssh2 before 1.8.1 when a specially crafted SFTP packet is received from the server. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory. (CVE-2019-3858) - An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the way SSH packets with a padding length value greater than the packet length are parsed. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory. (CVE-2019-3861) Note that Nessus has not tested for this issue but has instead relied only on the application last seen 2020-06-01 modified 2020-06-02 plugin id 129930 published 2019-10-15 reporter This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/129930 title NewStart CGSL CORE 5.04 / MAIN 5.04 : libssh2 Multiple Vulnerabilities (NS-SA-2019-0205) NASL family CentOS Local Security Checks NASL id CENTOS_RHSA-2019-2136.NASL description An update for libssh2 is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. The libssh2 packages provide a library that implements the SSH2 protocol. The following packages have been upgraded to a later upstream version: libssh2 (1.8.0). (BZ#1592784) Security Fix(es) : * libssh2: Zero-byte allocation with a specially crafted SFTP packed leading to an out-of-bounds read (CVE-2019-3858) * libssh2: Out-of-bounds reads with specially crafted SSH packets (CVE-2019-3861) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Additional Changes : For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.7 Release Notes linked from the References section. last seen 2020-06-01 modified 2020-06-02 plugin id 128360 published 2019-08-30 reporter This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/128360 title CentOS 7 : libssh2 (CESA-2019:2136) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-1360.NASL description According to the versions of the libssh2 package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - An out of bounds read flaw was discovered in libssh2 when a specially crafted SFTP packet is received from the server. A remote attacker who compromises a SSH server may be able to cause a denial of service or read data in the client memory.(CVE-2019-3858) - An out of bounds read flaw was discovered in libssh2 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.(CVE-2019-3859) - An out of bounds read flaw was discovered in libssh2 in the way SFTP packets with empty payloads are parsed. A remote attacker who compromises a SSH server may be able to cause a denial of service or read data in the client memory.(CVE-2019-3860) - An out of bounds read flaw was discovered in libssh2 in the way SSH packets with a padding length value greater than the packet length are parsed. A remote attacker who compromises a SSH server may be able to cause a denial of service or read data in the client memory.(CVE-2019-3861) - An out of bounds read flaw was discovered in libssh2 in the way SSH_MSG_CHANNEL_REQUEST packets with an exit status message and no payload are parsed. A remote attacker who compromises a SSH server may be able to cause a denial of service or read data in the client memory.(CVE-2019-3862) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 124738 published 2019-05-10 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/124738 title EulerOS Virtualization 2.5.3 : libssh2 (EulerOS-SA-2019-1360) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-1309.NASL description According to the versions of the libssh2 package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - An out of bounds read flaw was discovered in libssh2 when a specially crafted SFTP packet is received from the server. A remote attacker who compromises a SSH server may be able to cause a denial of service or read data in the client memory.(CVE-2019-3858) - An out of bounds read flaw was discovered in libssh2 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.(CVE-2019-3859) - An out of bounds read flaw was discovered in libssh2 in the way SFTP packets with empty payloads are parsed. A remote attacker who compromises a SSH server may be able to cause a denial of service or read data in the client memory.(CVE-2019-3860) - An out of bounds read flaw was discovered in libssh2 in the way SSH packets with a padding length value greater than the packet length are parsed. A remote attacker who compromises a SSH server may be able to cause a denial of service or read data in the client memory.(CVE-2019-3861) - An out of bounds read flaw was discovered in libssh2 in the way SSH_MSG_CHANNEL_REQUEST packets with an exit status message and no payload are parsed. A remote attacker who compromises a SSH server may be able to cause a denial of service or read data in the client memory.(CVE-2019-3862) - An integer overflow flaw which could lead to an out of bounds write was discovered in libssh2 in the way packets are read from the server. A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects to the server.(CVE-2019-3855) - An integer overflow flaw, which could lead to an out of bounds write, was discovered in libssh2 in the way keyboard prompt requests are parsed. A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects to the server.(CVE-2019-3856) - An integer overflow flaw which could lead to an out of bounds write was discovered in libssh2 in the way SSH_MSG_CHANNEL_REQUEST packets with an exit signal are parsed. A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects to the server.(CVE-2019-3857) - A flaw was found in libssh2 before 1.8.1. A server could send a multiple keyboard interactive response messages whose total length are greater than unsigned char max characters. This value is used as an index to copy memory causing in an out of bounds memory write error.(CVE-2019-3863) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-05-06 modified 2019-05-01 plugin id 124436 published 2019-05-01 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/124436 title EulerOS 2.0 SP3 : libssh2 (EulerOS-SA-2019-1309) NASL family FreeBSD Local Security Checks NASL id FREEBSD_PKG_6E58E1E92636413E9F844C0E21143628.NASL description libssh2 developers report : - Defend against possible integer overflows in comp_method_zlib_decomp. - Defend against writing beyond the end of the payload in _libssh2_transport_read(). - Sanitize padding_length - _libssh2_transport_read(). - This prevents an underflow resulting in a potential out-of-bounds read if a server sends a too-large padding_length, possibly with malicious intent. - Prevent zero-byte allocation in sftp_packet_read() which could lead to an out-of-bounds read. - Check the length of data passed to sftp_packet_add() to prevent out-of-bounds reads. - Add a required_size parameter to sftp_packet_require et. al. to require callers of these functions to handle packets that are too short. - Additional length checks to prevent out-of-bounds reads and writes in _libssh2_packet_add(). last seen 2020-06-01 modified 2020-06-02 plugin id 124182 published 2019-04-19 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/124182 title FreeBSD : libssh2 -- multiple issues (6e58e1e9-2636-413e-9f84-4c0e21143628) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-1308.NASL description According to the versions of the libssh2 package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - An out of bounds read flaw was discovered in libssh2 when a specially crafted SFTP packet is received from the server. A remote attacker who compromises a SSH server may be able to cause a denial of service or read data in the client memory.(CVE-2019-3858) - An out of bounds read flaw was discovered in libssh2 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.(CVE-2019-3859) - An out of bounds read flaw was discovered in libssh2 in the way SFTP packets with empty payloads are parsed. A remote attacker who compromises a SSH server may be able to cause a denial of service or read data in the client memory.(CVE-2019-3860) - An out of bounds read flaw was discovered in libssh2 in the way SSH packets with a padding length value greater than the packet length are parsed. A remote attacker who compromises a SSH server may be able to cause a denial of service or read data in the client memory.(CVE-2019-3861) - An out of bounds read flaw was discovered in libssh2 in the way SSH_MSG_CHANNEL_REQUEST packets with an exit status message and no payload are parsed. A remote attacker who compromises a SSH server may be able to cause a denial of service or read data in the client memory.(CVE-2019-3862) - An integer overflow flaw which could lead to an out of bounds write was discovered in libssh2 in the way packets are read from the server. A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects to the server.(CVE-2019-3855) - An integer overflow flaw, which could lead to an out of bounds write, was discovered in libssh2 in the way keyboard prompt requests are parsed. A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects to the server.(CVE-2019-3856) - An integer overflow flaw which could lead to an out of bounds write was discovered in libssh2 in the way SSH_MSG_CHANNEL_REQUEST packets with an exit signal are parsed. A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects to the server.(CVE-2019-3857) - A flaw was found in libssh2 before 1.8.1. A server could send a multiple keyboard interactive response messages whose total length are greater than unsigned char max characters. This value is used as an index to copy memory causing in an out of bounds memory write error.(CVE-2019-3863) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-05-06 modified 2019-05-01 plugin id 124435 published 2019-05-01 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/124435 title EulerOS 2.0 SP2 : libssh2 (EulerOS-SA-2019-1308) NASL family SuSE Local Security Checks NASL id OPENSUSE-2019-1075.NASL description This update for libssh2_org fixes the following issues : Security issues fixed: 	 - CVE-2019-3861: Fixed Out-of-bounds reads with specially crafted SSH packets (bsc#1128490). - CVE-2019-3862: Fixed Out-of-bounds memory comparison with specially crafted message channel request packet (bsc#1128492). - CVE-2019-3860: Fixed Out-of-bounds reads with specially crafted SFTP packets (bsc#1128481). - CVE-2019-3863: Fixed an Integer overflow in user authenticate keyboard interactive which could allow out-of-bounds writes with specially crafted keyboard responses (bsc#1128493). - CVE-2019-3856: Fixed a potential Integer overflow in keyboard interactive handling which could allow out-of-bounds write with specially crafted payload (bsc#1128472). - CVE-2019-3859: Fixed Out-of-bounds reads with specially crafted payloads due to unchecked use of _libssh2_packet_require and _libssh2_packet_requirev (bsc#1128480). - CVE-2019-3855: Fixed a potential Integer overflow in transport read which could allow out-of-bounds write with specially crafted payload (bsc#1128471). - CVE-2019-3858: Fixed a potential zero-byte allocation which could lead to an out-of-bounds read with a specially crafted SFTP packet (bsc#1128476). - CVE-2019-3857: Fixed a potential Integer overflow which could lead to zero-byte allocation and out-of-bounds with specially crafted message channel request SSH packet (bsc#1128474). Other issue addressed : - Libbssh2 will stop using keys unsupported types in the known_hosts file (bsc#1091236). This update was imported from the SUSE:SLE-12:Update update project. last seen 2020-06-01 modified 2020-06-02 plugin id 123494 published 2019-03-29 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/123494 title openSUSE Security Update : libssh2_org (openSUSE-2019-1075) NASL family SuSE Local Security Checks NASL id SUSE_SU-2019-13982-1.NASL description This update for libssh2_org fixes the following issues : Security issues fixed : CVE-2019-3861: Fixed Out-of-bounds reads with specially crafted SSH packets (bsc#1128490). CVE-2019-3862: Fixed Out-of-bounds memory comparison with specially crafted message channel request packet (bsc#1128492). CVE-2019-3860: Fixed Out-of-bounds reads with specially crafted SFTP packets (bsc#1128481). CVE-2019-3863: Fixed an Integer overflow in user authenicate keyboard interactive which could allow out-of-bounds writes with specially crafted keyboard responses (bsc#1128493). CVE-2019-3856: Fixed a potential Integer overflow in keyboard interactive handling which could allow out-of-bounds write with specially crafted payload (bsc#1128472). CVE-2019-3859: Fixed Out-of-bounds reads with specially crafted payloads due to unchecked use of _libssh2_packet_require and _libssh2_packet_requirev (bsc#1128480). CVE-2019-3855: Fixed a potential Integer overflow in transport read which could allow out-of-bounds write with specially crafted payload (bsc#1128471). CVE-2019-3858: Fixed a potential zero-byte allocation which could lead to an out-of-bounds read with a specially crafted SFTP packet (bsc#1128476). CVE-2019-3857: Fixed a potential Integer overflow which could lead to zero-byte allocation and out-of-bounds with specially crafted message channel request SSH packet (bsc#1128474). Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 122971 published 2019-03-20 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/122971 title SUSE SLES11 Security Update : libssh2_org (SUSE-SU-2019:13982-1) NASL family PhotonOS Local Security Checks NASL id PHOTONOS_PHSA-2019-3_0-0009_LIBSSH2.NASL description An update of the libssh2 package has been released. last seen 2020-06-01 modified 2020-06-02 plugin id 126377 published 2019-07-02 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/126377 title Photon OS 3.0: Libssh2 PHSA-2019-3.0-0009 NASL family Fedora Local Security Checks NASL id FEDORA_2019-3348CB4934.NASL description This update addresses various overflow conditions that could result in possible memory read/write out of bounds errors or zero byte allocations when connected to a malicious server. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 123760 published 2019-04-05 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/123760 title Fedora 28 : libssh2 (2019-3348cb4934) NASL family NewStart CGSL Local Security Checks NASL id NEWSTART_CGSL_NS-SA-2019-0252_LIBSSH2.NASL description The remote NewStart CGSL host, running version CORE 5.05 / MAIN 5.05, has libssh2 packages installed that are affected by multiple vulnerabilities: - An out of bounds read flaw was discovered in libssh2 before 1.8.1 when a specially crafted SFTP packet is received from the server. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory. (CVE-2019-3858) - An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the way SSH packets with a padding length value greater than the packet length are parsed. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory. (CVE-2019-3861) Note that Nessus has not tested for this issue but has instead relied only on the application last seen 2020-06-01 modified 2020-06-02 plugin id 132483 published 2019-12-31 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/132483 title NewStart CGSL CORE 5.05 / MAIN 5.05 : libssh2 Multiple Vulnerabilities (NS-SA-2019-0252) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-1310.NASL description According to the versions of the libssh2 package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - An out of bounds read flaw was discovered in libssh2 when a specially crafted SFTP packet is received from the server. A remote attacker who compromises a SSH server may be able to cause a denial of service or read data in the client memory.(CVE-2019-3858) - An out of bounds read flaw was discovered in libssh2 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.(CVE-2019-3859) - An out of bounds read flaw was discovered in libssh2 in the way SFTP packets with empty payloads are parsed. A remote attacker who compromises a SSH server may be able to cause a denial of service or read data in the client memory.(CVE-2019-3860) - An out of bounds read flaw was discovered in libssh2 in the way SSH packets with a padding length value greater than the packet length are parsed. A remote attacker who compromises a SSH server may be able to cause a denial of service or read data in the client memory.(CVE-2019-3861) - An out of bounds read flaw was discovered in libssh2 in the way SSH_MSG_CHANNEL_REQUEST packets with an exit status message and no payload are parsed. A remote attacker who compromises a SSH server may be able to cause a denial of service or read data in the client memory.(CVE-2019-3862) - An integer overflow flaw which could lead to an out of bounds write was discovered in libssh2 in the way packets are read from the server. A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects to the server.(CVE-2019-3855) - An integer overflow flaw, which could lead to an out of bounds write, was discovered in libssh2 in the way keyboard prompt requests are parsed. A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects to the server.(CVE-2019-3856) - An integer overflow flaw which could lead to an out of bounds write was discovered in libssh2 in the way SSH_MSG_CHANNEL_REQUEST packets with an exit signal are parsed. A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects to the server.(CVE-2019-3857) - A flaw was found in libssh2 before 1.8.1. A server could send a multiple keyboard interactive response messages whose total length are greater than unsigned char max characters. This value is used as an index to copy memory causing in an out of bounds memory write error.(CVE-2019-3863) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-05-06 modified 2019-05-01 plugin id 124437 published 2019-05-01 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/124437 title EulerOS 2.0 SP5 : libssh2 (EulerOS-SA-2019-1310) NASL family Debian Local Security Checks NASL id DEBIAN_DSA-4431.NASL description Chris Coulson discovered several vulnerabilities in libssh2, a SSH2 client-side library, which could result in denial of service, information leaks or the execution of arbitrary code. last seen 2020-06-01 modified 2020-06-02 plugin id 124039 published 2019-04-15 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/124039 title Debian DSA-4431-1 : libssh2 - security update NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-1429.NASL description According to the versions of the libssh2 package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - A type confusion issue was found in the way libssh2 generated ephemeral secrets for the diffie-hellman-group1 and diffie-hellman-group14 key exchange methods. This would cause an SSHv2 Diffie-Hellman handshake to use significantly less secure random parameters.(CVE-2016-0787) - A flaw was found in the way the kex_agree_methods() function of libssh2 performed a key exchange when negotiating a new SSH session. A man-in-the-middle attacker could use a crafted SSH_MSG_KEXINIT packet to crash a connecting libssh2 client.(CVE-2015-1782) - An integer overflow flaw which could lead to an out of bounds write was discovered in libssh2 in the way SSH_MSG_CHANNEL_REQUEST packets with an exit signal are parsed. A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects to the server.(CVE-2019-3857) - An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the way SSH_MSG_CHANNEL_REQUEST packets with an exit status message and no payload are parsed. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.(CVE-2019-3862) - An integer overflow flaw, which could lead to an out of bounds write, was discovered in libssh2 before 1.8.1 in the way keyboard prompt requests are parsed. A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects to the server.(CVE-2019-3856) - A flaw was found in libssh2 before 1.8.1. A server could send a multiple keyboard interactive response messages whose total length are greater than unsigned char max characters. This value is used as an index to copy memory causing in an out of bounds memory write error.(CVE-2019-3863) - An integer overflow flaw which could lead to an out of bounds write was discovered in libssh2 before 1.8.1 in the way packets are read from the server. A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects to the server.(CVE-2019-3855) - An out of bounds read flaw was discovered in libssh2 before 1.8.1 when a specially crafted SFTP packet is received from the server. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.(CVE-2019-3858) - 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.(CVE-2019-3859) - An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the way SFTP packets with empty payloads are parsed. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.(CVE-2019-3860) - An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the way SSH packets with a padding length value greater than the packet length are parsed. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.(CVE-2019-3861) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 124932 published 2019-05-14 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/124932 title EulerOS Virtualization 3.0.1.0 : libssh2 (EulerOS-SA-2019-1429) NASL family SuSE Local Security Checks NASL id OPENSUSE-2019-1109.NASL description This update for libssh2_org fixes the following issues : Security issues fixed:	 - CVE-2019-3861: Fixed Out-of-bounds reads with specially crafted SSH packets (bsc#1128490). - CVE-2019-3862: Fixed Out-of-bounds memory comparison with specially crafted message channel request packet (bsc#1128492). - CVE-2019-3860: Fixed Out-of-bounds reads with specially crafted SFTP packets (bsc#1128481). - CVE-2019-3863: Fixed an Integer overflow in user authenicate keyboard interactive which could allow out-of-bounds writes with specially crafted keyboard responses (bsc#1128493). - CVE-2019-3856: Fixed a potential Integer overflow in keyboard interactive handling which could allow out-of-bounds write with specially crafted payload (bsc#1128472). - CVE-2019-3859: Fixed Out-of-bounds reads with specially crafted payloads due to unchecked use of _libssh2_packet_require and _libssh2_packet_requirev (bsc#1128480). - CVE-2019-3855: Fixed a potential Integer overflow in transport read which could allow out-of-bounds write with specially crafted payload (bsc#1128471). - CVE-2019-3858: Fixed a potential zero-byte allocation which could lead to an out-of-bounds read with a specially crafted SFTP packet (bsc#1128476). - CVE-2019-3857: Fixed a potential Integer overflow which could lead to zero-byte allocation and out-of-bounds with specially crafted message channel request SSH packet (bsc#1128474). This update was imported from the SUSE:SLE-15:Update update project. last seen 2020-06-01 modified 2020-06-02 plugin id 123656 published 2019-04-03 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/123656 title openSUSE Security Update : libssh2_org (openSUSE-2019-1109) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2019-2136.NASL description An update for libssh2 is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. The libssh2 packages provide a library that implements the SSH2 protocol. The following packages have been upgraded to a later upstream version: libssh2 (1.8.0). (BZ#1592784) Security Fix(es) : * libssh2: Zero-byte allocation with a specially crafted SFTP packed leading to an out-of-bounds read (CVE-2019-3858) * libssh2: Out-of-bounds reads with specially crafted SSH packets (CVE-2019-3861) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Additional Changes : For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.7 Release Notes linked from the References section. last seen 2020-06-01 modified 2020-06-02 plugin id 127680 published 2019-08-12 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/127680 title RHEL 7 : libssh2 (RHSA-2019:2136) NASL family Slackware Local Security Checks NASL id SLACKWARE_SSA_2019-077-01.NASL description New libssh2 packages are available for Slackware 14.2 and -current to fix security issues. last seen 2020-06-01 modified 2020-06-02 plugin id 122940 published 2019-03-19 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/122940 title Slackware 14.2 / current : libssh2 (SSA:2019-077-01) NASL family Amazon Linux Local Security Checks NASL id AL2_ALAS-2019-1263.NASL description An out of bounds read flaw was discovered in libssh2 when a specially crafted SFTP packet is received from the server. A remote attacker who compromises a SSH server may be able to cause a denial of service or read data in the client memory. (CVE-2019-3858) An out of bounds read flaw was discovered in libssh2 in the way SSH packets with a padding length value greater than the packet length are parsed. A remote attacker who compromises a SSH server may be able to cause a denial of service or read data in the client memory. (CVE-2019-3861) last seen 2020-06-01 modified 2020-06-02 plugin id 127465 published 2019-08-12 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/127465 title Amazon Linux 2 : libssh2 (ALAS-2019-1263) NASL family Scientific Linux Local Security Checks NASL id SL_20190806_LIBSSH2_ON_SL7_X.NASL description The following packages have been upgraded to a later upstream version: libssh2 (1.8.0). Security Fix(es) : - libssh2: Zero-byte allocation with a specially crafted SFTP packed leading to an out-of-bounds read (CVE-2019-3858) - libssh2: Out-of-bounds reads with specially crafted SSH packets (CVE-2019-3861) last seen 2020-03-18 modified 2019-08-27 plugin id 128235 published 2019-08-27 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/128235 title Scientific Linux Security Update : libssh2 on SL7.x x86_64 (20190806) NASL family SuSE Local Security Checks NASL id SUSE_SU-2019-0655-1.NASL description This update for libssh2_org fixes the following issues : Security issues fixed : CVE-2019-3861: Fixed Out-of-bounds reads with specially crafted SSH packets (bsc#1128490). CVE-2019-3862: Fixed Out-of-bounds memory comparison with specially crafted message channel request packet (bsc#1128492). CVE-2019-3860: Fixed Out-of-bounds reads with specially crafted SFTP packets (bsc#1128481). CVE-2019-3863: Fixed an Integer overflow in user authenticate keyboard interactive which could allow out-of-bounds writes with specially crafted keyboard responses (bsc#1128493). CVE-2019-3856: Fixed a potential Integer overflow in keyboard interactive handling which could allow out-of-bounds write with specially crafted payload (bsc#1128472). CVE-2019-3859: Fixed Out-of-bounds reads with specially crafted payloads due to unchecked use of _libssh2_packet_require and _libssh2_packet_requirev (bsc#1128480). CVE-2019-3855: Fixed a potential Integer overflow in transport read which could allow out-of-bounds write with specially crafted payload (bsc#1128471). CVE-2019-3858: Fixed a potential zero-byte allocation which could lead to an out-of-bounds read with a specially crafted SFTP packet (bsc#1128476). CVE-2019-3857: Fixed a potential Integer overflow which could lead to zero-byte allocation and out-of-bounds with specially crafted message channel request SSH packet (bsc#1128474). Other issue addressed: Libbssh2 will stop using keys unsupported types in the known_hosts file (bsc#1091236). Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 122997 published 2019-03-21 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/122997 title SUSE SLED12 / SLES12 Security Update : libssh2_org (SUSE-SU-2019:0655-1) NASL family PhotonOS Local Security Checks NASL id PHOTONOS_PHSA-2019-1_0-0222_LIBSSH2.NASL description An update of the libssh2 package has been released. last seen 2020-06-01 modified 2020-06-02 plugin id 125155 published 2019-05-15 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/125155 title Photon OS 1.0: Libssh2 PHSA-2019-1.0-0222 NASL family Fedora Local Security Checks NASL id FEDORA_2019-70A9D4F970.NASL description This update addresses various overflow conditions that could result in possible memory read/write out of bounds errors or zero byte allocations when connected to a malicious server. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 124503 published 2019-05-02 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/124503 title Fedora 30 : libssh2 (2019-70a9d4f970) NASL family Fedora Local Security Checks NASL id FEDORA_2019-F31C14682F.NASL description This update addresses various overflow conditions that could result in possible memory read/write out of bounds errors or zero byte allocations when connected to a malicious server. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 123052 published 2019-03-25 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/123052 title Fedora 29 : libssh2 (2019-f31c14682f)
Redhat
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The Hacker News
| id | THN:B9050A4E7D2CE55A80B70F1870DE2C24 |
| last seen | 2019-03-19 |
| modified | 2019-03-19 |
| published | 2019-03-19 |
| reporter | The Hacker News |
| source | https://thehackernews.com/2019/03/libssh2-vulnerabilities.html |
| title | Libssh Releases Update to Patch 9 New Security Vulnerabilities |
References
- http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html
- http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.html
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.html
- https://access.redhat.com/errata/RHSA-2019:2136
- https://access.redhat.com/errata/RHSA-2019:2136
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3861
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3861
- https://lists.debian.org/debian-lts-announce/2019/03/msg00032.html
- https://lists.debian.org/debian-lts-announce/2019/03/msg00032.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/
- https://seclists.org/bugtraq/2019/Apr/25
- https://seclists.org/bugtraq/2019/Apr/25
- https://security.netapp.com/advisory/ntap-20190327-0005/
- https://security.netapp.com/advisory/ntap-20190327-0005/
- https://www.debian.org/security/2019/dsa-4431
- https://www.debian.org/security/2019/dsa-4431
- https://www.libssh2.org/CVE-2019-3861.html
- https://www.libssh2.org/CVE-2019-3861.html
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html