Search criteria
2 vulnerabilities by stefanberger
CVE-2025-49133 (GCVE-0-2025-49133)
Vulnerability from cvelistv5 – Published: 2025-06-10 19:46 – Updated: 2025-11-03 20:05
VLAI?
Title
Libtpms contains a possible out-of-bound access and abort due to HMAC signing issue
Summary
Libtpms is a library that targets the integration of TPM functionality into hypervisors, primarily into Qemu. Libtpms, which is derived from the TPM 2.0 reference implementation code published by the Trusted Computing Group, is prone to a potential out of bounds (OOB) read vulnerability. The vulnerability occurs in the ‘CryptHmacSign’ function with an inconsistent pairing of the signKey and signScheme parameters, where the signKey is ALG_KEYEDHASH key and inScheme is an ECC or RSA scheme. The reported vulnerability is in the ‘CryptHmacSign’ function, which is defined in the "Part 4: Supporting Routines – Code" document, section "7.151 - /tpm/src/crypt/CryptUtil.c ". This vulnerability can be triggered from user-mode applications by sending malicious commands to a TPM 2.0/vTPM (swtpm) whose firmware is based on an affected TCG reference implementation. The effect on libtpms is that it will cause an abort due to the detection of the out-of-bounds access, thus for example making a vTPM (swtpm) unavailable to a VM. This vulnerability is fixed in 0.7.12, 0.8.10, 0.9.7, and 0.10.1.
Severity ?
5.9 (Medium)
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| stefanberger | libtpms |
Affected:
= 0.7.11
Affected: = 0.8.9 Affected: = 0.9.6 Affected: = 0.10.0 |
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CVE-2022-23645 (GCVE-0-2022-23645)
Vulnerability from cvelistv5 – Published: 2022-02-18 20:50 – Updated: 2025-04-23 19:02
VLAI?
Title
Out-of-bounds read in swtpm
Summary
swtpm is a libtpms-based TPM emulator with socket, character device, and Linux CUSE interface. Versions prior to 0.5.3, 0.6.2, and 0.7.1 are vulnerable to out-of-bounds read. A specially crafted header of swtpm's state, where the blobheader's hdrsize indicator has an invalid value, may cause an out-of-bounds access when the byte array representing the state of the TPM is accessed. This will likely crash swtpm or prevent it from starting since the state cannot be understood. Users should upgrade to swtpm v0.5.3, v0.6.2, or v0.7.1 to receive a patch. There are currently no known workarounds.
Severity ?
6.2 (Medium)
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| stefanberger | swtpm |
Affected:
< 0.5.3
Affected: >= 0.6.0, < 0.6.2 Affected: = 0.7.0 |
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