CVE-2019-3862
High
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.
SeverityHigh
CVSS7.3
Exploit probability—
Product
Libssh2
PublishedMar 21, 2019
First seenMar 21, 2019
Weakness typeCWE-130CWE-130
How to fix
Update
- libssh2 libssh21.8.1 or later
Vendor advisories
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XCWEA5ZCLKRDUK62QVVYMFWLWKOPX3LO/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/
- debian.org/security/2019/dsa-4431
- access.redhat.com/errata/RHSA-2019:1884
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| libssh2 libssh2 | v < 1.8.1 | 1.8.1 |
| fedoraproject fedora | 29 | — |
| debian debian_linux | 8.0 | — |
| netapp ontap_select_deploy_administration_utility | No range specified | — |
| opensuse leap | 42.3 | — |
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