VulnerabilityModified
CVE-2019-3859
A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.
CRITICAL 9.1EPSS 6.28%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (6.28%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the _libssh2_packet_require and _libssh2_packet_requirev functions. 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 3.1
- 9.1 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
- EPSS
- 6.28% probability · 93th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- libssh2/libssh2 · fedoraproject/fedora · debian/debian linux · netapp/ontap select deploy administration utility · opensuse/leap
- Source
- secalert@redhat.com
References
- http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00102.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00103.htmlMailing List, Third Party Advisory
- http://packetstormsecurity.com/files/152136/Slackware-Security-Advisory-libssh2-Updates.htmlPatch, Third Party Advisory, VDB Entry
- http://www.openwall.com/lists/oss-security/2019/03/18/3Mailing List, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/107485Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3859Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/03/msg00032.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/04/msg00006.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/07/msg00024.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/25Mailing List, Third Party Advisory
- https://seclists.org/bugtraq/2019/Mar/25Mailing List, Patch, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20190327-0005/Third Party Advisory
- https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2019-767Third Party Advisory
- https://www.debian.org/security/2019/dsa-4431Third Party Advisory
- https://www.libssh2.org/CVE-2019-3859.htmlVendor Advisory
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
- http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00102.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00103.htmlMailing List, Third Party Advisory
- http://packetstormsecurity.com/files/152136/Slackware-Security-Advisory-libssh2-Updates.htmlPatch, Third Party Advisory, VDB Entry
- http://www.openwall.com/lists/oss-security/2019/03/18/3Mailing List, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/107485Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3859Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/03/msg00032.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/04/msg00006.htmlMailing List, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.