OpenSSH server (sshd) 9.1 introduced a double-free vulnerability during options.kex_algorithms handling. This is fixed in OpenSSH 9.2. The double free can be leveraged, by an unauthenticated remote attacker in the default configuration, to jump to any location in the sshd address space. One third-party report states "remote code execution is theoretically possible."
References
Configurations
Configuration 1 (hide)
|
Configuration 2 (hide)
|
Configuration 3 (hide)
|
Configuration 4 (hide)
AND |
|
Configuration 5 (hide)
AND |
|
Configuration 6 (hide)
AND |
|
History
27 Feb 2024, 15:15
Type | Values Removed | Values Added |
---|---|---|
First Time |
Openbsd openssh
Openbsd |
|
CPE | cpe:2.3:a:openbsd:openssh:9.1:*:*:*:*:*:*:* |
21 Jul 2023, 19:21
Type | Values Removed | Values Added |
---|---|---|
References | (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/R7LKQDFZWKYHQ65TBSH2X2HJQ4V2THS3/ - Mailing List | |
References | (CONFIRM) https://security.netapp.com/advisory/ntap-20230309-0003/ - Third Party Advisory | |
References | (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JGAUIXJ3TEKCRKVWFQ6GDAGQFTIIGQQP/ - Mailing List | |
References | (GENTOO) https://security.gentoo.org/glsa/202307-01 - Third Party Advisory | |
References | (MLIST) http://www.openwall.com/lists/oss-security/2023/03/09/2 - Mailing List, Third Party Advisory | |
CPE | cpe:2.3:o:netapp:a250_firmware:-:*:*:*:*:*:*:* cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:* cpe:2.3:o:netapp:500f_firmware:-:*:*:*:*:*:*:* cpe:2.3:o:netapp:c250_firmware:-:*:*:*:*:*:*:* cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:* cpe:2.3:h:netapp:c250:-:*:*:*:*:*:*:* cpe:2.3:h:netapp:a250:-:*:*:*:*:*:*:* cpe:2.3:h:netapp:500f:-:*:*:*:*:*:*:* cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:* |
20 Jul 2023, 04:15
Type | Values Removed | Values Added |
---|---|---|
References |
|
19 Apr 2023, 04:15
Type | Values Removed | Values Added |
---|---|---|
References |
|
09 Mar 2023, 19:15
Type | Values Removed | Values Added |
---|---|---|
References |
|
|
References | (MLIST) http://www.openwall.com/lists/oss-security/2023/02/22/2 - Mailing List, Third Party Advisory | |
References | (MLIST) http://www.openwall.com/lists/oss-security/2023/02/23/3 - Mailing List, Third Party Advisory | |
References | (MLIST) http://www.openwall.com/lists/oss-security/2023/02/22/1 - Mailing List, Third Party Advisory | |
References | (MLIST) http://www.openwall.com/lists/oss-security/2023/02/13/1 - Mailing List, Third Party Advisory | |
CVSS |
v2 : v3 : |
v2 : unknown
v3 : 6.5 |
23 Feb 2023, 19:15
Type | Values Removed | Values Added |
---|---|---|
CWE | CWE-415 | |
CVSS |
v2 : v3 : |
v2 : unknown
v3 : 9.8 |
References |
|
|
References | (MISC) https://bugzilla.mindrot.org/show_bug.cgi?id=3522 - Exploit, Issue Tracking, Third Party Advisory | |
References | (MISC) https://ftp.openbsd.org/pub/OpenBSD/patches/7.2/common/017_sshd.patch.sig - Patch, Vendor Advisory | |
References | (MISC) https://www.openwall.com/lists/oss-security/2023/02/02/2 - Exploit, Mailing List, Third Party Advisory | |
References | (MISC) https://github.com/openssh/openssh-portable/commit/486c4dc3b83b4b67d663fb0fa62bc24138ec3946 - Patch, Third Party Advisory | |
CPE | cpe:2.3:a:openssh:openssh:9.1:*:*:*:*:*:*:* | |
Summary | OpenSSH server (sshd) 9.1 introduced a double-free vulnerability during options.kex_algorithms handling. This is fixed in OpenSSH 9.2. The double free can be leveraged, by an unauthenticated remote attacker in the default configuration, to jump to any location in the sshd address space. One third-party report states "remote code execution is theoretically possible." |
03 Feb 2023, 14:01
Type | Values Removed | Values Added |
---|---|---|
New CVE |
Information
Published : 2023-02-03 06:15
Updated : 2024-02-27 15:15
NVD link : CVE-2023-25136
Mitre link : CVE-2023-25136
CVE.ORG link : CVE-2023-25136
JSON object : View
Products Affected
netapp
- c250_firmware
- a250
- a250_firmware
- ontap_select_deploy_administration_utility
- 500f
- c250
- 500f_firmware
fedoraproject
- fedora
openbsd
- openssh
CWE
CWE-415
Double Free