Skip to content
OpenAdvisories
Medium ELSA-2024-12232 1 CVE

Moderate: openssh security update (Oracle Linux 7)

Published Mar 19, 2024 · Updated Mar 19, 2024

Summary

[7.4p1-23.0.3_fips]
- Change Epoch from 1 to 10
- Enable fips KDF POST [Orabug: 32461750]
- Disable diffie-hellman-group-exchange-sha256 KEX FIPS method [Orabug: 32461739]

[7.4p1-23.0.3]
- add KEX_INITIAL flag [Orabug: 36160445]
- implement 'strict key exchange' [CVE-2023-48795][Orabug: 36160445]

Fixed packages 9

ReleasePackageFixed in
Oracle Linux · 7 openssh 10:7.4p1-23.0.3.el7_9_fips
Oracle Linux · 7 openssh-askpass 10:7.4p1-23.0.3.el7_9_fips
Oracle Linux · 7 openssh-cavs 10:7.4p1-23.0.3.el7_9_fips
Oracle Linux · 7 openssh-clients 10:7.4p1-23.0.3.el7_9_fips
Oracle Linux · 7 openssh-keycat 10:7.4p1-23.0.3.el7_9_fips
Oracle Linux · 7 openssh-ldap 10:7.4p1-23.0.3.el7_9_fips
Oracle Linux · 7 openssh-server 10:7.4p1-23.0.3.el7_9_fips
Oracle Linux · 7 openssh-server-sysvinit 10:7.4p1-23.0.3.el7_9_fips
Oracle Linux · 7 pam_ssh_agent_auth 10:0.10.3-2.23.0.3.el7_9_fips

Vulnerabilities 1

  • Medium 5.9
    CVE-2023-48795 Public exploit Scanner template EPSS 94%

    Prefix Truncation Attack against ChaCha20-Poly1305 and Encrypt-then-MAC aka Terrapin

    The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote attackers to bypass integrity checks such that some packets are omitted (from the extension negotiation message), and a client and server…