CVE-2015-1782: Input Validation
First published: Fri Mar 13 2015(Updated: )
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.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Debian Debian Linux | =7.0 | |
| libssh2 | <=1.4.3 | |
| Fedoraproject Fedora | =20 | |
| Fedoraproject Fedora | =21 | |
| Fedoraproject Fedora | =22 |
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Reference Links
- http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151943.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152362.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-March/153933.html
- http://www.debian.org/security/2015/dsa-3182
- http://www.libssh2.org/adv_20150311.html
- http://www.mandriva.com/security/advisories?name=MDVSA-2015:148
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
- http://www.securityfocus.com/bid/73061
Frequently Asked Questions
What is the severity of CVE-2015-1782?
CVE-2015-1782 has a severity rating of medium due to the potential denial of service it can cause.
How do I fix CVE-2015-1782?
To fix CVE-2015-1782, update libssh2 to version 1.5.0 or higher, or apply the relevant patches from your vendor.
What impact does CVE-2015-1782 have on affected systems?
CVE-2015-1782 can cause a denial of service by crashing the application when receiving specially crafted SSH_MSG_KEXINIT packets.
Which versions of libssh2 are affected by CVE-2015-1782?
CVE-2015-1782 affects libssh2 versions up to and including 1.4.3.
What systems are vulnerable to CVE-2015-1782?
Vulnerable systems include Debian 7.0 and Fedora versions 20, 21, and 22 that utilize affected versions of libssh2.
- agent/weakness
- agent/severity
- agent/author
- agent/references
- agent/type
- agent/event
- agent/description
- agent/tags
- agent/first-publish-date
- agent/softwarecombine
- agent/last-modified-date
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/7.0
- vendor/libssh2
- canonical/libssh2
- version/libssh2/1.4.3
- vendor/fedoraproject
- canonical/fedoraproject fedora
- version/fedoraproject fedora/20
- version/fedoraproject fedora/21
- version/fedoraproject fedora/22