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ENT-13591: Fixed buffer overflow in cf-secret when using multiple keys of different sizes #5992

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ENT-13591: Fixed buffer overflow in cf-secret when using multiple keys of different sizes #5992

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@larsewi larsewi commented Dec 11, 2025 

$ openssl genrsa -out small.priv 2048
$ openssl rsa -in small.priv -RSAPublicKey_out -out small.pub
writing RSA key
$ openssl genrsa -out large.priv 4096
$ openssl rsa -in large.priv -RSAPublicKey_out -out large.pub
writing RSA key
$ echo "Secret Data" > secret.txt
$ cf-secret encrypt -k small.pub,large.pub -o secret.enc secret.txt
free(): invalid next size (normal)
Aborted (core dumped)

Ticket: ENT-13591
Changelog: Title
Signed-off-by: Lars Erik Wik [email protected]

@larsewi
Fixed buffer overflow in cf-secret when using multiple keys of differ…
b8d1e09 
…ent sizes

```
$ openssl genrsa -out small.priv 2048
$ openssl rsa -in small.priv -RSAPublicKey_out -out small.pub
writing RSA key
$ openssl genrsa -out large.priv 4096
$ openssl rsa -in large.priv -RSAPublicKey_out -out large.pub
writing RSA key
$ echo "Secret Data" > secret.txt
$ cf-secret encrypt -k small.pub,large.pub -o secret.enc secret.txt
free(): invalid next size (normal)
Aborted (core dumped)
```

Ticket: ENT-13591
Changelog: Title
Signed-off-by: Lars Erik Wik <[email protected]>
@larsewi larsewi changed the title Fixed buffer overflow in cf-secret when using multiple keys of different sizes ENT-13591: Fixed buffer overflow in cf-secret when using multiple keys of different sizes Dec 11, 2025
@larsewi larsewi marked this pull request as ready for review December 11, 2025 11:25
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