Integer Overflow or Wraparound Affecting libssh2-docs package, versions *


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.26% (66th percentile)

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  • Snyk IDSNYK-CENTOS7-LIBSSH2DOCS-1993576
  • published26 Jul 2021
  • disclosed16 Jul 2019

Introduced: 16 Jul 2019

CVE-2019-13115  (opens in a new tab)
CWE-190  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

There is no fixed version for Centos:7 libssh2-docs.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libssh2-docs package and not the libssh2-docs package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

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.

References

CVSS Scores

version 3.1