CLSA-2026-1786478067

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Import Source
https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1786478067.json
JSON Data
https://api.osv.dev/v1/vulns/CLSA-2026-1786478067
Upstream
Published
2026-08-11T19:54:37Z
Modified
2026-10-26T09:30:42Z
Summary
Fix CVE(s): CVE-2026-66032
Details
  • SECURITY UPDATE: double free in sftp_open() reachable by a malicious SSH server against an authenticated client opening an SFTP session
    • debian/patches/CVE-2026-66032.patch: NULL the response buffer after freeing it on the FX_OK path, so the if(badness) arm cannot free the same stale pointer a second time when sftp_packet_require() fails with anything other than LIBSSH2_ERROR_EAGAIN, in src/sftp.c
    • CVE-2026-66032
References

Affected packages

TuxCare:Ubuntu:18.04 / libssh2-1

Package

Name
libssh2-1
Purl
pkg:deb/tuxcare/libssh2-1?distro=ubuntu-18.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.8.0-1ubuntu0.1+tuxcare.els3

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1786478067.json"

TuxCare:Ubuntu:18.04 / libssh2-1-dev

Package

Name
libssh2-1-dev
Purl
pkg:deb/tuxcare/libssh2-1-dev?distro=ubuntu-18.04

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.8.0-1ubuntu0.1+tuxcare.els3

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1786478067.json"