CVE-2015-1782 Denial of service in n/a
A remote server can crash the libssh2 client by sending crafted SSH key exchange initialization packets, causing a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2015-1782?
CVE-2015-1782 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 13 Mar 2015. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The kex_agree_methods function in libssh2 before 1.5.0 allows remote servers to cause a denial of service (crash) or have other unspecified impact via crafted length values in an SSH_MSG_KEXINIT packet.
Weakness: CWE-20
Which versions are affected by CVE-2015-1782?
It affects 3 products.
Linux distribution packages (20)
libssh2 Red Hat:enterprise_linux:7::client | All versions | 0:1.4.3-10.el7 |
libssh2-debuginfo Red Hat:enterprise_linux:7::client | All versions | 0:1.4.3-10.el7 |
libssh2-devel Red Hat:enterprise_linux:7::client | All versions | 0:1.4.3-10.el7 |
libssh2-docs Red Hat:enterprise_linux:7::client | All versions | 0:1.4.3-10.el7 |
libssh2 Red Hat:enterprise_linux:7::computenode | All versions | 0:1.4.3-10.el7 |
libssh2-debuginfo Red Hat:enterprise_linux:7::computenode | All versions | 0:1.4.3-10.el7 |
libssh2-devel Red Hat:enterprise_linux:7::computenode | All versions | 0:1.4.3-10.el7 |
libssh2-docs Red Hat:enterprise_linux:7::computenode | All versions | 0:1.4.3-10.el7 |
libssh2 Red Hat:enterprise_linux:7::server | All versions | 0:1.4.3-10.el7 |
libssh2-debuginfo Red Hat:enterprise_linux:7::server | All versions | 0:1.4.3-10.el7 |
libssh2-devel Red Hat:enterprise_linux:7::server | All versions | 0:1.4.3-10.el7 |
libssh2-docs Red Hat:enterprise_linux:7::server | All versions | 0:1.4.3-10.el7 |
libssh2 Red Hat:enterprise_linux:7::workstation | All versions | 0:1.4.3-10.el7 |
libssh2-debuginfo Red Hat:enterprise_linux:7::workstation | All versions | 0:1.4.3-10.el7 |
libssh2-devel Red Hat:enterprise_linux:7::workstation | All versions | 0:1.4.3-10.el7 |
libssh2-docs Red Hat:enterprise_linux:7::workstation | All versions | 0:1.4.3-10.el7 |
libssh2_org SUSE:Linux Enterprise Desktop 12 | All versions | 1.4.3-11.1 |
libssh2_org SUSE:Linux Enterprise Server 12 | All versions | 1.4.3-11.1 |
libssh2_org SUSE:Linux Enterprise Server for SAP Applications 12 | All versions | 1.4.3-11.1 |
libssh2_org SUSE:Linux Enterprise Software Development Kit 12 | All versions | 1.4.3-11.1 |
Products include Debian Debian Linux, Fedoraproject Fedora, Libssh2 Libssh2.
How do I fix CVE-2015-1782?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2015-1782 being exploited?
There is no known exploitation of CVE-2015-1782 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2015-1782, DLA-171-1, DSA-3182-1, GHSA-47g3-jvrj-pm9m, MGASA-2015-0107, RHSA-2015:2140 and 3 more.