From: Mimi Zohar <zohar@linux.ibm.com>
To: linux-integrity@vger.kernel.org
Cc: Mimi Zohar <zohar@linux.ibm.com>, Petr Vorel <pvorel@suse.cz>,
Vitaly Chikunov <vt@altlinux.org>,
Stefan Berger <stefanb@linux.ibm.com>
Subject: [PATCH ima-evm-utils 11/11] Missing template data size lower bounds checking
Date: Fri, 2 Sep 2022 12:28:36 -0400 [thread overview]
Message-ID: <20220902162836.554839-12-zohar@linux.ibm.com> (raw)
In-Reply-To: <20220902162836.554839-1-zohar@linux.ibm.com>
Each record in the IMA measurement list must contain some template data.
Ensure the template data is not zero length.
Reviewed-by: Petr Vorel <pvorel@suse.cz>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
---
src/evmctl.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/src/evmctl.c b/src/evmctl.c
index aac669438a1c..e603449b7d9e 100644
--- a/src/evmctl.c
+++ b/src/evmctl.c
@@ -2188,6 +2188,10 @@ static int ima_measurement(const char *file)
log_err("Unable to read template length\n");
goto out;
}
+ if (entry.template_len == 0) {
+ log_err("Invalid template data len\n");
+ goto out;
+ }
} else {
entry.template_len = SHA_DIGEST_LENGTH +
TCG_EVENT_NAME_LEN_MAX + 1;
--
2.31.1
prev parent reply other threads:[~2022-09-02 16:29 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-02 16:28 [PATCH ima-evm-utils 00/11] address deprecated warnings Mimi Zohar
2022-09-02 16:28 ` [PATCH ima-evm-utils 01/11] travis: use the distro OpenSSL version on jammy Mimi Zohar
2022-09-02 16:28 ` [PATCH ima-evm-utils 02/11] travis: update dist=focal Mimi Zohar
2022-09-02 20:24 ` Stefan Berger
2022-09-06 18:27 ` Mimi Zohar
2022-09-02 16:28 ` [PATCH ima-evm-utils 03/11] Update configure.ac to address a couple of obsolete warnings Mimi Zohar
2022-09-02 16:28 ` [PATCH ima-evm-utils 04/11] Deprecate IMA signature version 1 Mimi Zohar
2022-09-02 19:25 ` Stefan Berger
2022-09-02 16:28 ` [PATCH ima-evm-utils 05/11] Replace the low level SHA1 calls when calculating the TPM 1.2 PCRs Mimi Zohar
2022-09-02 20:18 ` Stefan Berger
2022-09-02 16:28 ` [PATCH ima-evm-utils 06/11] Replace the low level HMAC calls when calculating the EVM HMAC Mimi Zohar
2022-09-02 16:28 ` [PATCH ima-evm-utils 07/11] Add missing EVP_MD_CTX_free() call in calc_evm_hash() Mimi Zohar
2022-09-02 16:28 ` [PATCH ima-evm-utils 08/11] Deprecate use of OpenSSL v3 "engine" support Mimi Zohar
2022-09-04 3:08 ` Vitaly Chikunov
2022-09-04 16:26 ` Mimi Zohar
2022-09-02 16:28 ` [PATCH ima-evm-utils 09/11] Fix potential use after free in read_tpm_banks() Mimi Zohar
2022-09-02 16:28 ` [PATCH ima-evm-utils 10/11] Limit the file hash algorithm name length Mimi Zohar
2022-09-02 16:28 ` Mimi Zohar [this message]
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