CLSA-2026-1787740667

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Import Source
https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/debian10els/CLSA-2026-1787740667.json
JSON Data
https://api.osv.dev/v1/vulns/CLSA-2026-1787740667
Upstream
Published
2026-08-26T10:38:04Z
Modified
2026-10-26T09:31:53Z
Summary
Fix CVE(s): CVE-2026-66032
Details
  • SECURITY UPDATE: double free in sftp_open() lets a malicious SSH server corrupt the heap of an authenticated client opening an SFTP session
    • debian/patches/CVE-2026-66032.patch: set data to NULL after freeing the SSH_FXP_STATUS response buffer on the FX_OK path, so the if(badness) arm cannot free the same pointer a second time when the follow-up sftp_packet_require() for SSH_FXP_HANDLE fails, in sftp_open() in src/sftp.c
    • CVE-2026-66032
References

Affected packages

TuxCare:Debian:10 / libssh2-1

Package

Name
libssh2-1
Purl
pkg:deb/tuxcare/libssh2-1?distro=debian-10

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.8.0-2.1+deb10u1+tuxcare.els3

Database specific

source
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/debian10els/CLSA-2026-1787740667.json"

TuxCare:Debian:10 / libssh2-1-dev

Package

Name
libssh2-1-dev
Purl
pkg:deb/tuxcare/libssh2-1-dev?distro=debian-10

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.8.0-2.1+deb10u1+tuxcare.els3

Database specific

source
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/debian10els/CLSA-2026-1787740667.json"