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CVE-2026-68151

binfmt_elf_fdpic: only honour the first PT_INTERP

In the Linux kernel, the following vulnerability has been resolved: binfmt_elf_fdpic: only honour the first PT_INTERP The program header scan handles PT_INTERP from a switch nested in the scan loop, so its break leaves the switch and not the loop. A binary carrying more than one PT_INTERP runs the case again and overwrites both interpreter_name and interpreter. The previous name allocation leaks and so does the previous interpreter reference, along with the write denial open_exec() took on it. The denial is never released, so the file stays unwritable for as long as the system runs. An unprivileged caller reaches this with a crafted binary and repeats it at will. binfmt_elf stops at the first PT_INTERP. Do the same here. The flaw dates back to the driver's introduction in the pre-git history tree introduced in v2.6.11 by 91808d6ebe39 ("[PATCH] FRV: Add FDPIC ELF binary format driver").

CVSS n/a EPSS < 1% KEV · Not listed
Vendors
Linux
Products
Linux Kernel
CVE-2021-26855

Microsoft Exchange Server Remote Code Execution Vulnerability

Microsoft Exchange Server Remote Code Execution Vulnerability

CVSS 3.1 · 9.1 Critical EPSS 100.0% KEV · Listed
Vendors
Microsoft
Products
Exchange Server
CVE-2021-26854

Microsoft Exchange Server Remote Code Execution Vulnerability

Microsoft Exchange Server Remote Code Execution Vulnerability

CVSS 3.1 · 6.6 Medium EPSS 20.7% KEV · Not listed
Vendors
Microsoft
Products
Exchange Server
CVE-2021-26412

Microsoft Exchange Server Remote Code Execution Vulnerability

Microsoft Exchange Server Remote Code Execution Vulnerability

CVSS 3.1 · 9.1 Critical EPSS 28.6% KEV · Not listed
Vendors
Microsoft
Products
Exchange Server