Description
An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the way SSH_MSG_CHANNEL_REQUEST packets with an exit status message and no payload are parsed. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.
CVSS breakdown
CVSS 3.0
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low
Affected products
- Debian / debian_linux8.0 – 8.0
- fedoraproject / fedora29 – 29
- libssh2 / libssh21.8.1
- NetApp / ONTAP Select Deploy administration utility
- openSUSE / Leap42.3 – 42.3
- The libssh2 Project / libssh21.8.1 – 1.8.1
References
- MAILING_LISThttp://www.openwall.com/lists/oss-security/2019/03/18/3
- MAILING_LISThttps://seclists.org/bugtraq/2019/Mar/25
- MISChttps://www.libssh2.org/CVE-2019-3862.html
- MISChttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3862
- EXPLOIThttp://packetstormsecurity.com/files/152136/Slackware-Security-Advisory-libssh2-Updates.html
- MISChttp://www.securityfocus.com/bid/107485
- MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XCWEA5ZCLKRDUK62QVVYMFWLWKOPX3LO/
- VENDOR_ADVISORYhttps://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2019-767
- MAILING_LISThttps://lists.debian.org/debian-lts-announce/2019/03/msg00032.html
- MISChttps://security.netapp.com/advisory/ntap-20190327-0005/
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.html
- MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/
- VENDOR_ADVISORYhttps://www.debian.org/security/2019/dsa-4431
- MAILING_LISThttps://seclists.org/bugtraq/2019/Apr/25
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2019:1884
- VENDOR_ADVISORYhttps://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
- VENDOR_ADVISORYhttps://www.oracle.com/security-alerts/cpujan2020.html
Updated 15m ago · 8 sources