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libssh: Write beyond bounds in binary to base64 conversion functions

🗓️ 19 May 2026 13:16:29Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 9 Views

Libssh 32-bit Unix flaw: large input to ssh_get_fingerprint_hash causes bin_to_base64 overflow; heap corruption.

Related
Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux9aarch64libssh0.10.4-18.el9libssh-0.10.4-18.el9.aarch64.rpm
Red Hat Enterprise Linux9i686libssh0.10.4-18.el9libssh-0.10.4-18.el9.i686.rpm
Red Hat Enterprise Linux9ppc64lelibssh0.10.4-18.el9libssh-0.10.4-18.el9.ppc64le.rpm
Red Hat Enterprise Linux9s390xlibssh0.10.4-18.el9libssh-0.10.4-18.el9.s390x.rpm
Red Hat Enterprise Linux9x86_64libssh0.10.4-18.el9libssh-0.10.4-18.el9.x86_64.rpm
Red Hat Enterprise Linux9noarchlibssh-config0.10.4-18.el9libssh-config-0.10.4-18.el9.noarch.rpm
Red Hat Enterprise Linux9aarch64libssh-debuginfo0.10.4-18.el9libssh-debuginfo-0.10.4-18.el9.aarch64.rpm
Red Hat Enterprise Linux9i686libssh-debuginfo0.10.4-18.el9libssh-debuginfo-0.10.4-18.el9.i686.rpm
Red Hat Enterprise Linux9ppc64lelibssh-debuginfo0.10.4-18.el9libssh-debuginfo-0.10.4-18.el9.ppc64le.rpm
Red Hat Enterprise Linux9s390xlibssh-debuginfo0.10.4-18.el9libssh-debuginfo-0.10.4-18.el9.s390x.rpm
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03 Jul 2026 00:44Current
7.1High risk
Vulners AI Score7.1
CVSS 3.14.5
EPSS0.00178
SSVC
9