CVSS: 6.1EPSS: 0%CPEs: 5EXPL: 0CVE-2021-3623
https://notcve.org/view.php?id=CVE-2021-3623
A flaw was found in libtpms. The flaw can be triggered by specially-crafted TPM 2 command packets containing illegal values and may lead to an out-of-bounds access when the volatile state of the TPM 2 is marshalled/written or unmarshalled/read. The highest threat from this vulnerability is to system availability. Se ha encontrado un fallo en libtpms. El fallo puede ser desencadenado por paquetes de comandos TPM 2 especialmente diseñados que contengan valores ilegales y puede conllevar a un acceso fuera de límites cuando el estado volátil del TPM 2 es marshalled/written o unmarshalled/read. • https://bugzilla.redhat.com/show_bug.cgi?id=1976806 https://github.com/stefanberger/libtpms/commit/2e6173c https://github.com/stefanberger/libtpms/commit/2f30d62 https://github.com/stefanberger/libtpms/commit/7981d9a https://github.com/stefanberger/libtpms/pull/223 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z7KZSYMTE7Z4BBEZUWO2DIMQDWMGEP46 • CWE-787: Out-of-bounds Write •
CVSS: 7.1EPSS: 0%CPEs: 6EXPL: 0CVE-2021-3746
https://notcve.org/view.php?id=CVE-2021-3746
A flaw was found in the libtpms code that may cause access beyond the boundary of internal buffers. The vulnerability is triggered by specially-crafted TPM2 command packets that then trigger the issue when the state of the TPM2's volatile state is written. The highest threat from this vulnerability is to system availability. This issue affects libtpms versions before 0.8.5, before 0.7.9 and before 0.6.6. Se ha encontrado un fallo en el código de libtpms que puede causar un acceso más allá de los límites de los búferes internos. • https://bugzilla.redhat.com/show_bug.cgi?id=1998588 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
CVSS: 5.5EPSS: 0%CPEs: 3EXPL: 0CVE-2021-3569
https://notcve.org/view.php?id=CVE-2021-3569
A stack corruption bug was found in libtpms in versions before 0.7.2 and before 0.8.0 while decrypting data using RSA. This flaw could result in a SIGBUS (bad memory access) and termination of swtpm. The highest threat from this vulnerability is to system availability. Se ha encontrado un bug de corrupción de pila en libtpms en versiones anteriores a 0.7.2 y versiones anteriores a 0.8.0 al descifrar datos usando RSA. Este fallo podría resultar en un SIGBUS (acceso de memoria incorrecto) y la terminación de swtpm. • https://bugzilla.redhat.com/show_bug.cgi?id=1964358 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') CWE-787: Out-of-bounds Write •
CVSS: 5.5EPSS: 0%CPEs: 3EXPL: 1CVE-2021-3505
https://notcve.org/view.php?id=CVE-2021-3505
A flaw was found in libtpms in versions before 0.8.0. The TPM 2 implementation returns 2048 bit keys with ~1984 bit strength due to a bug in the TCG specification. The bug is in the key creation algorithm in RsaAdjustPrimeCandidate(), which is called before the prime number check. The highest threat from this vulnerability is to data confidentiality. Se encontró un fallo en libtpms en versiones anteriores a 0.8.0. • https://bugzilla.redhat.com/show_bug.cgi?id=1950046 https://github.com/stefanberger/libtpms/issues/183 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NUCZX4S53TUNTSGTCRDNOQZV2V2RI4RJ • CWE-331: Insufficient Entropy •
CVSS: 5.5EPSS: 0%CPEs: 3EXPL: 0CVE-2021-3446
https://notcve.org/view.php?id=CVE-2021-3446
A flaw was found in libtpms in versions before 0.8.2. The commonly used integration of libtpms with OpenSSL contained a vulnerability related to the returned IV (initialization vector) when certain symmetric ciphers were used. Instead of returning the last IV it returned the initial IV to the caller, thus weakening the subsequent encryption and decryption steps. The highest threat from this vulnerability is to data confidentiality. Se encontró un fallo en libtpms en versiones anteriores a 0.8.2. • https://bugzilla.redhat.com/show_bug.cgi?id=1939664 • CWE-327: Use of a Broken or Risky Cryptographic Algorithm CWE-330: Use of Insufficiently Random Values •