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Amazon Linux AMI 2: CVE-2019-17498: Security patch for libssh2 (ALAS-2020-1531)

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Amazon Linux AMI 2: CVE-2019-17498: Security patch for libssh2 (ALAS-2020-1531)

Severity
6
CVSS
(AV:N/AC:M/Au:N/C:P/I:N/A:P)
Published
10/21/2019
Created
10/28/2020
Added
10/28/2020
Modified
09/30/2022

Description

In libssh2 v1.9.0 and earlier versions, the SSH_MSG_DISCONNECT logic in packet.c has an integer overflow in a bounds check, enabling an attacker to specify an arbitrary (out-of-bounds) offset for a subsequent memory read. A crafted 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.

Solution(s)

  • amazon-linux-ami-2-upgrade-libssh2
  • amazon-linux-ami-2-upgrade-libssh2-debuginfo
  • amazon-linux-ami-2-upgrade-libssh2-devel
  • amazon-linux-ami-2-upgrade-libssh2-docs

References

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