SB2019061214 - Information disclosure in libreswan
Published: June 12, 2019 Updated: May 12, 2020
Security Bulletin ID
SB2019061214
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Insufficient verification of data authenticity (CVE-ID: CVE-2019-10155)
CWE-ID: CWE-345 - Insufficient Verification of Data Authenticity
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to the application does not verify origin for IKEv1 informational exchange packets. A remote attacker can craft packets and make the application believe they were sent by the original user.
Successful exploitation of the vulnerability may allow an attacker to gain access to sensitive information and use this issue combined with other vulnerabilities to decrypt data.Remediation
Install update from vendor's website.
References
- https://access.redhat.com/errata/RHSA-2019:3391
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10155
- https://libreswan.org/security/CVE-2019-10155/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EUEXFCN7FAYBKJBQJLYCEUQUCHDEJRZW/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LFGPGLLKAXSLWFI62A6BZHTZSCHRCBXS/