CVE-2019-3858
What it is
An out of bounds read flaw was discovered in libssh2 before 1.8.1 when a specially crafted SFTP packet is received from the server. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.
At a glance
- Exploitability
- Can be exploited over the network without logging in, but needs a user to act. Limited direct impact.
- Exploit odds
- 6.4% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 6.4% in the next 30 days (EPSS).
- Severity: 5.0 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 6.4% · EPSS, next 30 days
- Weakness
- CWE-125 · Out-of-bounds read
- Record status
- Modified
Affected
- libssh2 < 1.8.1
- Fedoraproject Fedora 29
- Debian Linux 8.0
- Netapp Ontap Select Deploy Administration Utility
- Opensuse Leap 15.0
- Opensuse Leap 42.3
Attack profile CVSS 3.0 · 5.0
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
Raw vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2019-3858.md and follow it. Check whether this project is affected by CVE-2019-3858. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- http://www.openwall.com/lists/oss-security/2019/03/18/3
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3858
- https://www.libssh2.org/CVE-2019-3858.html
- http://www.openwall.com/lists/oss-security/2019/03/18/3
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3858
- https://www.libssh2.org/CVE-2019-3858.html
References
- http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.html
- http://packetstormsecurity.com/files/152136/Slackware-Security-Advisory-libssh2-Updates.html
- http://www.openwall.com/lists/oss-security/2019/03/18/3
- http://www.securityfocus.com/bid/107485
- https://access.redhat.com/errata/RHSA-2019:2136
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3858
- https://lists.debian.org/debian-lts-announce/2019/03/msg00032.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XCWEA5ZCLKRDUK62QVVYMFWLWKOPX3LO/
- https://seclists.org/bugtraq/2019/Apr/25
- https://seclists.org/bugtraq/2019/Mar/25
- https://security.netapp.com/advisory/ntap-20190327-0005/
- https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2019-767
- https://www.debian.org/security/2019/dsa-4431
- https://www.libssh2.org/CVE-2019-3858.html
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
- http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.html
- http://packetstormsecurity.com/files/152136/Slackware-Security-Advisory-libssh2-Updates.html
- http://www.openwall.com/lists/oss-security/2019/03/18/3
- http://www.securityfocus.com/bid/107485
- https://access.redhat.com/errata/RHSA-2019:2136
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3858
- https://lists.debian.org/debian-lts-announce/2019/03/msg00032.html