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Openbsd : Security Vulnerabilities Published In 2019

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# CVE ID CWE ID # of Exploits Vulnerability Type(s) Publish Date Update Date Score Gained Access Level Access Complexity Authentication Conf. Integ. Avail.
1 CVE-2019-8460 20 DoS 2019-08-26 2019-09-05
5.0
None Remote Low Not required None None Partial
Reuven Plevinsky and Tal Vainshtein of Check Point Software Technologies Ltd. discovered that OpenBSD kernel (all versions, including 6.5) can be forced to create long chains of TCP SACK holes that cause very expensive calls to tcp_sack_option() for every incoming SACK packet which can lead to a denial of service.
2 CVE-2019-6111 20 Dir. Trav. 2019-01-31 2019-05-03
5.8
None Remote Medium Not required None Partial Partial
An issue was discovered in OpenSSH 7.9. Due to the scp implementation being derived from 1983 rcp, the server chooses which files/directories are sent to the client. However, the scp client only performs cursory validation of the object name returned (only directory traversal attacks are prevented). A malicious scp server (or Man-in-The-Middle attacker) can overwrite arbitrary files in the scp client target directory. If recursive operation (-r) is performed, the server can manipulate subdirectories as well (for example, to overwrite the .ssh/authorized_keys file).
3 CVE-2019-6110 284 2019-01-31 2019-04-18
4.0
None Remote High Not required Partial Partial None
In OpenSSH 7.9, due to accepting and displaying arbitrary stderr output from the server, a malicious server (or Man-in-The-Middle attacker) can manipulate the client output, for example to use ANSI control codes to hide additional files being transferred.
4 CVE-2019-6109 284 2019-01-31 2019-05-03
4.0
None Remote High Not required Partial Partial None
An issue was discovered in OpenSSH 7.9. Due to missing character encoding in the progress display, a malicious server (or Man-in-The-Middle attacker) can employ crafted object names to manipulate the client output, e.g., by using ANSI control codes to hide additional files being transferred. This affects refresh_progress_meter() in progressmeter.c.
5 CVE-2018-20685 706 Bypass 2019-01-10 2019-10-02
2.6
None Remote High Not required None Partial None
In OpenSSH 7.9, scp.c in the scp client allows remote SSH servers to bypass intended access restrictions via the filename of . or an empty filename. The impact is modifying the permissions of the target directory on the client side.
Total number of vulnerabilities : 5   Page : 1 (This Page)
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