CVE-2019-13115
CVSS v3
8.1
HIGH
EPSS Score
42.8 %
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
In libssh2 before 1.9.0, kex_method_diffie_hellman_group_exchange_sha256_key_exchange in kex.c has an integer overflow that could lead to an out-of-bounds read in the way packets are read from the server. A remote attacker who compromises a SSH server may be able to disclose sensitive information or cause a denial of service condition on the client system when a user connects to the server. This is related to an _libssh2_check_length mistake, and is different from the various issues fixed in 1.8.1, such as CVE-2019-3855.
Technical details
- Published
- 2019-07-16
Frequently asked questions
What is CVE-2019-13115?
In libssh2 before 1.9.0, kex_method_diffie_hellman_group_exchange_sha256_key_exchange in kex.c has an integer overflow that could lead to an out-of-bounds read in the way packets are read from the server. A remote attacker who compromises a SSH server may be able to disclose sensitive information or cause a denial of service condition on the client system when a user connects to the server. This is related to an _libssh2_check_length mistake, and is different from the various issues fixed in 1.8.1, such as CVE-2019-3855.
Is CVE-2019-13115 actively exploited?
Active exploitation of CVE-2019-13115 has not been confirmed. The EPSS score is 42.8%, indicating the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2019-13115?
CVE-2019-13115 has a CVSS v3 base score of 8.1 (HIGH severity).
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