CVE-2024-49851: tpm: Clean up TPM space after command failure
First published: Mon Oct 21 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: tpm: Clean up TPM space after command failure tpm_dev_transmit prepares the TPM space before attempting command transmission. However if the command fails no rollback of this preparation is done. This can result in transient handles being leaked if the device is subsequently closed with no further commands performed. Fix this by flushing the space in the event of command transmission failure.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=4.12<5.10.227 | |
| Linux Kernel | >=5.11<5.15.168 | |
| Linux Kernel | >=5.16<6.1.113 | |
| Linux Kernel | >=6.2<6.6.54 | |
| Linux Kernel | >=6.7<6.10.13 | |
| Linux Kernel | >=6.11<6.11.2 | |
| debian/linux | <=5.10.223-1<=5.10.226-1 | 6.1.123-1 6.1.128-1 6.12.12-1 6.12.15-1 |
| debian/linux-6.1 | 6.1.119-1~deb11u1 |
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Reference Links
- https://git.kernel.org/stable/c/2c9b228938e9266a1065a3f4fe5c99b7235dc439
- https://git.kernel.org/stable/c/3f9f72d843c92fb6f4ff7460d774413cde7f254c
- https://git.kernel.org/stable/c/82478cb8a23bd4f97935bbe60d64528c6d9918b4
- https://git.kernel.org/stable/c/87e8134c18977b566f4ec248c8a147244da69402
- https://git.kernel.org/stable/c/adf4ce162561222338cf2c9a2caa294527f7f721
- https://git.kernel.org/stable/c/c84ceb546f30432fccea4891163f7050f5bee5dd
- https://git.kernel.org/stable/c/e3aaebcbb7c6b403416f442d1de70d437ce313a7
- https://git.kernel.org/stable/c/ebc4e1f4492d114f9693950621b3ea42b2f82bec
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-49851
- https://nvd.nist.gov/vuln/detail/CVE-2024-49851
- https://launchpad.net/bugs/cve/CVE-2024-49851
- https://security-tracker.debian.org/tracker/CVE-2024-49851
- https://ubuntu.com/security/CVE-2024-49851
- https://git.kernel.org/linus/e3aaebcbb7c6b403416f442d1de70d437ce313a7
Frequently Asked Questions
What is the severity of CVE-2024-49851?
CVE-2024-49851 has been assessed with a high severity rating, indicating potential impact on system integrity.
How do I fix CVE-2024-49851?
To remediate CVE-2024-49851, upgrade your Linux kernel to a version that includes the security patch such as those above version 6.1.123-1.
What systems are affected by CVE-2024-49851?
CVE-2024-49851 affects various versions of the Linux kernel ranging from 4.12 to 6.11.2.
What type of vulnerability is CVE-2024-49851?
CVE-2024-49851 is a command failure vulnerability in the TPM implementation of the Linux kernel.
Is CVE-2024-49851 related to any specific software packages?
Yes, CVE-2024-49851 primarily affects the Linux kernel packaged in various distributions like Debian.
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