CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
5.1 | $0-$5k | 0.00 |
A vulnerability was found in libssh up to 0.5.1. It has been classified as problematic. Affected is the function ssh_packet_kexinit
of the file kex.c. The manipulation with an unknown input leads to a double free vulnerability. CWE is classifying the issue as CWE-415. The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations. This is going to have an impact on availability. CVE summarizes:
Double free vulnerability in the ssh_packet_kexinit function in kex.c in libssh 0.5.x and 0.6.x before 0.6.4 allows remote attackers to cause a denial of service via a crafted kexinit packet.
The weakness was presented 12/28/2014 (Website). The advisory is shared for download at libssh.org. This vulnerability is traded as CVE-2014-8132. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available.
The vulnerability scanner Nessus provides a plugin with the ID 80349 (Fedora 19 : libssh-0.6.4-1.fc19 (2014-17354)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 175641 (Debian Security Update for libssh (DSA 3488-1)).
Upgrading to version 0.5.2 eliminates this vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (80349).
Product
Name
Version
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.3VulDB Meta Temp Score: 5.1
VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Double freeCWE: CWE-415 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Today | unlock | unlock | unlock | unlock |
Nessus ID: 80349
Nessus Name: Fedora 19 : libssh-0.6.4-1.fc19 (2014-17354)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍
OpenVAS ID: 703488
OpenVAS Name: Debian Security Advisory DSA 3488-1 (libssh - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: libssh 0.5.2
Timeline
10/10/2014 🔍12/19/2014 🔍
12/19/2014 🔍
12/28/2014 🔍
12/28/2014 🔍
01/05/2015 🔍
01/09/2015 🔍
01/12/2015 🔍
03/27/2015 🔍
04/10/2022 🔍
Sources
Advisory: USN-2478-1Status: Not defined
Confirmation: 🔍
CVE: CVE-2014-8132 (🔍)
Vulnerability Center: 48001 - libssh 0.5.x and 0.6.x before 0.6.4 Remote DoS via a Crafted Kexinit Packet, Medium
SecurityFocus: 71865 - libssh 'kex.c' Double Free Denial of Service Vulnerability
Secunia: 60838 - SUSE update for libssh, Less Critical
Entry
Created: 03/27/2015 14:56Updated: 04/10/2022 09:53
Changes: 03/27/2015 14:56 (65), 06/17/2017 07:48 (10), 04/10/2022 09:50 (4), 04/10/2022 09:53 (1)
Complete: 🔍
Cache ID: 18:4CB:103
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