CVE-2018-10933
First published: Tue Oct 16 2018(Updated: )
A vulnerability was found in libssh's server-side state machine before versions 0.7.6 and 0.8.4. A malicious client could create channels without first performing authentication, resulting in unauthorized access.
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/libssh | <=0.6.3-4+deb8u2<=0.7.3-2<=0.7.3-1 | 0.8.4-1 0.7.3-2+deb9u1 |
| Libssh Libssh | >=0.6.0<0.7.6 | |
| Libssh Libssh | >=0.8.0<0.8.4 | |
| Canonical Ubuntu Linux | =14.04 | |
| Canonical Ubuntu Linux | =16.04 | |
| Canonical Ubuntu Linux | =18.04 | |
| Canonical Ubuntu Linux | =18.10 | |
| Debian Debian Linux | =8.0 | |
| Debian Debian Linux | =9.0 | |
| Redhat Enterprise Linux | =7.0 | |
| Netapp Oncommand Unified Manager Windows | >=7.3 | |
| Netapp Oncommand Unified Manager Vsphere | >=9.4 | |
| NetApp OnCommand Workflow Automation | ||
| Netapp Snapcenter | ||
| Netapp Storage Automation Store | ||
| Oracle Mysql Workbench | <=8.0.13 | |
| ubuntu/libssh | <0.8.0~20170825.94 | 0.8.0~20170825.94 |
| ubuntu/libssh | <0.8.1-1ubuntu0.1 | 0.8.1-1ubuntu0.1 |
| ubuntu/libssh | <0.6.1-0ubuntu3.4 | 0.6.1-0ubuntu3.4 |
| ubuntu/libssh | <0.6.3-4.3ubuntu0.1 | 0.6.3-4.3ubuntu0.1 |
| debian/libssh | 0.9.8-0+deb11u1 0.10.6-0+deb12u1 0.10.6-3 |
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Reference Links
- https://security-tracker.debian.org/tracker/CVE-2018-10933
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-10933
- https://www.openwall.com/lists/oss-security/2018/10/16/1
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=911149
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10933
- https://www.libssh.org/security/advisories/CVE-2018-10933.txt
- https://www.debian.org/security/2018/dsa-4322
- https://usn.ubuntu.com/3795-1/
- https://lists.debian.org/debian-lts-announce/2018/10/msg00010.html
- https://www.exploit-db.com/exploits/45638/
- http://www.securityfocus.com/bid/105677
- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0016
- https://usn.ubuntu.com/3795-2/
- https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html
- https://security.netapp.com/advisory/ntap-20190118-0002/
- https://launchpad.net/bugs/cve/CVE-2018-10933
- https://www.libssh.org/2018/10/16/libssh-0-8-4-and-0-7-6-security-and-bugfix-release/
- https://bugs.libssh.org/T101
- https://www.openwall.com/lists/oss-security/2018/10/17/5
- https://git.libssh.org/projects/libssh.git/commit/?id=2bddafeb709eacc80ad31fec40479f9b628a8bd7
- https://git.libssh.org/projects/libssh.git/commit/?id=825f4ba96407abe8cebb046a7503fa2bf5de9df6
- https://git.libssh.org/projects/libssh.git/commit/?id=20981bf2296202e95d7919394d4610ae3a876cfa
- https://git.libssh.org/projects/libssh.git/commit/?id=5d7414467d6dac100a93df761b06de5cd07fc69a
- https://git.libssh.org/projects/libssh.git/commit/?id=459868c4a57d2d11cf7835655a8d1a5cf034ccb4
- https://git.libssh.org/projects/libssh.git/commit/?id=68b0c7a93448123cc0d6a04d3df40d92a3fd0a67
- https://git.libssh.org/projects/libssh.git/commit/?id=75be012b4a14f4550ce6ad3f126e559f44dbde76
- https://git.libssh.org/projects/libssh.git/commit/?id=e1548a71bdac73da084174ab1d6d2713edd93f6e
- https://ubuntu.com/security/notices/USN-3795-1
- https://ubuntu.com/security/notices/USN-3795-2
- https://www.cve.org/CVERecord?id=CVE-2018-10933
- https://nvd.nist.gov/vuln/detail/CVE-2018-10933
- https://www.libssh.org/security/patches/stable-0.6_CVE-2018-10933.jmcd.patch01.txt
- https://git.libssh.org/projects/libssh.git/commit/?h=stable-0.8&id=b166ac4749c78f475b1708f0345e6ca2749c5d6d
- https://git.libssh.org/projects/libssh.git/commit/?h=stable-0.8&id=fcfba0d8aa15a0142e57513f271eb7fa4bbabc9a
- https://git.libssh.org/projects/libssh.git/commit/?h=stable-0.8&id=7819621fc2a07d2d4649b36ca77850610741cfec
- https://git.libssh.org/projects/libssh.git/commit/?h=stable-0.8&id=72bce5ece7edc2fd8023185f9d47b9fc86ef4663
- https://git.libssh.org/projects/libssh.git/commit/?h=stable-0.8&id=adeaa69cc535827ec8acfbaf3ff91224b5a595a7
- https://git.libssh.org/projects/libssh.git/commit/?h=stable-0.8&id=f8c452cbef228b105dcb757d7554c3388a4dbea5
- https://git.libssh.org/projects/libssh.git/commit/?h=stable-0.8&id=203818608ac8a83d68098f008306c3a568ac4cac
- https://git.libssh.org/projects/libssh.git/commit/?h=stable-0.8&id=09a7638575b3c07ad227763e1f03f7553b045e79
- https://ubuntu.com/security/CVE-2018-10933
Frequently Asked Questions
What is CVE-2018-10933?
CVE-2018-10933 is a vulnerability found in libssh's server-side state machine before versions 0.7.6 and 0.8.4.
How does CVE-2018-10933 work?
CVE-2018-10933 allows a malicious client to create channels without authentication, leading to unauthorized access.
What is the severity of CVE-2018-10933?
The severity of CVE-2018-10933 is critical with a CVSS score of 9.1.
Which software versions are affected by CVE-2018-10933?
Versions 0.6.0 to 0.7.6 and 0.8.0 to 0.8.4 of libssh are affected by CVE-2018-10933.
How can I fix CVE-2018-10933?
To fix CVE-2018-10933, update libssh to version 0.7.6 or 0.8.4 or later.
- collector/debian-bugs
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