High severity · published Apr 13, 2016
CVE-2015-3146
The (1) SSH_MSG_NEWKEYS and (2) SSH_MSG_KEXDH_REPLY packet handlers in package_cb.c in libssh before 0.6.5 do not properly validate state, which allows remote attackers to cause a…
7.5
CVSS
4%
EPSS
No
On KEV
Description
The (1) SSH_MSG_NEWKEYS and (2) SSH_MSG_KEXDH_REPLY packet handlers in package_cb.c in libssh before 0.6.5 do not properly validate state, which allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a crafted SSH packet.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)4.0% · higher than 90% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
7.0; 8.0 · source: NVD
FE
Fedora · Fedoraproject
21; 22 · source: NVD
LI
Libssh · Libssh
through 0.6.4 · source: NVD
UL
Ubuntu Linux · Canonical
12.04; 14.04; 15.10 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2015-3146
CVE.org
https://www.cve.org/CVERecord?id=CVE-2015-3146
lists.fedoraproject.org
http://lists.fedoraproject.org/pipermail/package-announce/2015-July/161802.html
lists.fedoraproject.org
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158013.html
www.debian.org
http://www.debian.org/security/2016/dsa-3488
www.ubuntu.com
http://www.ubuntu.com/usn/USN-2912-1
git.libssh.org
https://git.libssh.org/projects/libssh.git/commit/?h=libssh-0.6.5&id=94f6955fbaee6fda9385a23e505497efe21f5b4f
Vendor Advisory
https://www.libssh.org/2015/04/30/libssh-0-6-5-security-and-bugfix-release/
More from Ubuntu Linux
9.8
CVE-2020-11651
SaltStack Salt Authentication Bypass Vulnerability
9.8
CVE-2020-7247
OpenSMTPD Remote Code Execution Vulnerability
9.8
CVE-2019-11043
Underflow in PHP-FPM can lead to RCE
9.8
CVE-2019-16928
Exim Out-of-bounds Write Vulnerability
9.8
CVE-2019-10149
Exim Mail Transfer Agent (MTA) Improper Input Validation