CVE-2017-16837
published 2017-11-16CVE-2017-16837: Certain function pointers in Trusted Boot (tboot) through 1.9.6 are not validated and can cause arbitrary code execution, which allows local users to overwrite…
PriorityP334high7.8CVSS 3.0
AVLACLPRLUINSUCHIHAH
EPSS
0.42%
34.3th percentile
Certain function pointers in Trusted Boot (tboot) through 1.9.6 are not validated and can cause arbitrary code execution, which allows local users to overwrite dynamic PCRs of Trusted Platform Module (TPM) by hooking these function pointers.
Affected
4 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | tboot | — | — |
| redhat | ansible | >= 0 < 2.0.0.2-2ubuntu1.3 | 2.0.0.2-2ubuntu1.3 |
| redhat | ansible | >= 0 < 2.5.1+dfsg-1ubuntu0.1 | 2.5.1+dfsg-1ubuntu0.1 |
| trusted_boot_project | trusted_boot | — | — |
CVSS provenance
nvdv3.07.8HIGHCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv2.04.6MEDIUMAV:L/AC:L/Au:N/C:P/I:P/A:P
osv9.8CRITICAL
vendor_debian7.8LOW
vendor_redhat7.8HIGH
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
GHSA
GHSA-86m6-cj8w-2c48: Certain function pointers in Trusted Boot (tboot) through 1
ghsa_unreviewed·2022-05-14
CVE-2017-16837 [HIGH] CWE-20 GHSA-86m6-cj8w-2c48: Certain function pointers in Trusted Boot (tboot) through 1
Certain function pointers in Trusted Boot (tboot) through 1.9.6 are not validated and can cause arbitrary code execution, which allows local users to overwrite dynamic PCRs of Trusted Platform Module (TPM) by hooking these function pointers.
OSV
ansible vulnerabilities
osv·2019-07-24·CVSS 9.8
CVE-2017-7481 ansible vulnerabilities
ansible vulnerabilities
It was discovered that Ansible failed to properly handle sensitive information.
A local attacker could use those vulnerabilities to extract them.
(CVE-2017-7481)
(CVE-2018-10855)
(CVE-2018-16837)
(CVE-2018-16876)
(CVE-2019-10156)
It was discovered that Ansible could load configuration files from the current
working directory containing crafted commands. An attacker could run arbitrary
code as result.
(CVE-2018-10874)
(CVE-2018-10875)
It was discovered that Ansible fetch module had a path traversal vulnerability.
A local attacker could copy and overwrite files outside of the specified
destination.
(CVE-2019-3828)
OSV
CVE-2017-16837: Certain function pointers in Trusted Boot (tboot) through 1
osv·2017-11-16·CVSS 7.8
CVE-2017-16837 [HIGH] CVE-2017-16837: Certain function pointers in Trusted Boot (tboot) through 1
Certain function pointers in Trusted Boot (tboot) through 1.9.6 are not validated and can cause arbitrary code execution, which allows local users to overwrite dynamic PCRs of Trusted Platform Module (TPM) by hooking these function pointers.
Red Hat
tboot: Incorrect validation of certain function pointers
vendor_redhat·2017-11-13·CVSS 7.8
CVE-2017-16837 [HIGH] CWE-20 tboot: Incorrect validation of certain function pointers
tboot: Incorrect validation of certain function pointers
Certain function pointers in Trusted Boot (tboot) through 1.9.6 are not validated and can cause arbitrary code execution, which allows local users to overwrite dynamic PCRs of Trusted Platform Module (TPM) by hooking these function pointers.
Package: tboot (Red Hat Enterprise Linux 6) - Will not fix
Package: tboot (Red Hat Enterprise Linux 7) - Will not fix
Debian
CVE-2017-16837: tboot - Certain function pointers in Trusted Boot (tboot) through 1.9.6 are not validate...
vendor_debian·2017·CVSS 7.8
CVE-2017-16837 [HIGH] CVE-2017-16837: tboot - Certain function pointers in Trusted Boot (tboot) through 1.9.6 are not validate...
Certain function pointers in Trusted Boot (tboot) through 1.9.6 are not validated and can cause arbitrary code execution, which allows local users to overwrite dynamic PCRs of Trusted Platform Module (TPM) by hooking these function pointers.
Scope: local
bookworm: resolved
bullseye: resolved
sid: resolved
trixie: resolved
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2017-16837 tboot: Incorrect validation of certain function pointers [fedora-all]
bugzilla·2017-11-20·CVSS 7.8
CVE-2017-16837 [HIGH] CVE-2017-16837 tboot: Incorrect validation of certain function pointers [fedora-all]
CVE-2017-16837 tboot: Incorrect validation of certain function pointers [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported v
Bugzilla
CVE-2017-16837 tboot: Incorrect validation of certain function pointers
bugzilla·2017-11-20·CVSS 7.8
CVE-2017-16837 [HIGH] CVE-2017-16837 tboot: Incorrect validation of certain function pointers
CVE-2017-16837 tboot: Incorrect validation of certain function pointers
Certain function pointers in Trusted Boot (tboot) through 1.9.6 are not validated and can cause arbitrary code execution, which allows local users to overwrite dynamic PCRs of Trusted Platform Module (TPM) by hooking these function pointers.
References:
https://sourceforge.net/p/tboot/code/ci/521c58e51eb5be105a29983742850e72c44ed80e/
Discussion:
Created tboot tracking bugs for this issue:
Affects: fedora-all [bug 1515199]
---
The main issue here is an "evil maid"-style attack, where the attacker has physical access to the target machine and uses this to modify /boot/tboot.gz to run arbitrary code at boot time. This could be a concern if disk encryption keys are stored sealed in the TPM .. but in this scenario t
2017-11-16
Published