CVE-2023-2283
Vulnerability from cvelistv5
Published
2023-05-26 00:00
Modified
2024-08-02 06:19
Severity ?
Summary
A vulnerability was found in libssh, where the authentication check of the connecting client can be bypassed in the`pki_verify_data_signature` function in memory allocation problems. This issue may happen if there is insufficient memory or the memory usage is limited. The problem is caused by the return value `rc,` which is initialized to SSH_ERROR and later rewritten to save the return value of the function call `pki_key_check_hash_compatible.` The value of the variable is not changed between this point and the cryptographic verification. Therefore any error between them calls `goto error` returning SSH_OK.
References
secalert@redhat.comhttp://packetstormsecurity.com/files/172861/libssh-0.9.6-0.10.4-pki_verify_data_signature-Authorization-Bypass.html
secalert@redhat.comhttps://access.redhat.com/security/cve/CVE-2023-2283Third Party Advisory
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2189736Issue Tracking, Third Party Advisory
secalert@redhat.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/27PD44ALQTZXX7K6JAM3BXBUHYA6DFFN/
secalert@redhat.comhttps://security.gentoo.org/glsa/202312-05
secalert@redhat.comhttps://security.netapp.com/advisory/ntap-20240201-0005/
secalert@redhat.comhttps://www.libssh.org/security/advisories/CVE-2023-2283.txtVendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/172861/libssh-0.9.6-0.10.4-pki_verify_data_signature-Authorization-Bypass.html
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/security/cve/CVE-2023-2283Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=2189736Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/27PD44ALQTZXX7K6JAM3BXBUHYA6DFFN/
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202312-05
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20240201-0005/
af854a3a-2127-422b-91ae-364da2661108https://www.libssh.org/security/advisories/CVE-2023-2283.txtVendor Advisory
Impacted products
Vendor Product Version
n/a libssh Version: libssh-2
Show details on NVD website

To clipboard 

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