QID 355524

Date Published: 2023-07-03

QID 355524: Amazon Linux Security Advisory for libssh2 : AL2012-2023-423

Package updates are available for Amazon Linux that fix the following vulnerabilities:
CVE-2019-3860:
An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the way SFTP packets with empty payloads are parsed. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory. CVE-2019-3859:
An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the _libssh2_packet_require and _libssh2_packet_requirev functions. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.

Successful exploitation of this vulnerability could lead to a security breach or could affect integrity, availability, and confidentiality.

CVSS V3 rated as Critical - 9.1 severity.

CVSS V2 rated as High - 6.4 severity.

Solution

Administrators are advised to apply the appropriate software updates.

Vendor References

CVEs related to QID 355524

CVE-2019-3860 | CVE-2019-3859 |

Software Advisories

Advisory ID	Software	Component	Link
AL2012-2023-423	Amazon Linux Bare Metal		docs.aws.amazon.com/AWSEC2/latest/UserGuide/install-updates.html

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