Covert Timing Channel Affecting tfm-runtime package, versions <0:4.0-3.el7sat
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published26 Mar 2023
- disclosed7 Jun 2018
Introduced: 7 Jun 2018
CVE-2016-1000341 (opens in a new tab)How to fix?
Upgrade RHEL:7 tfm-runtime to version 0:4.0-3.el7sat or higher.
This issue was patched in RHSA-2018:2927.
NVD Description
Note: Versions mentioned in the description apply only to the upstream tfm-runtime package and not the tfm-runtime package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
In the Bouncy Castle JCE Provider version 1.55 and earlier DSA signature generation is vulnerable to timing attack. Where timings can be closely observed for the generation of signatures, the lack of blinding in 1.55, or earlier, may allow an attacker to gain information about the signature's k value and ultimately the private value as well.
References
- https://access.redhat.com/security/cve/CVE-2016-1000341
- https://access.redhat.com/errata/RHSA-2018:2927
- https://github.com/bcgit/bc-java/commit/acaac81f96fec91ab45bd0412beaf9c3acd8defa#diff-e75226a9ca49217a7276b29242ec59ce
- https://lists.debian.org/debian-lts-announce/2018/07/msg00009.html
- https://security.netapp.com/advisory/ntap-20181127-0004/
- https://usn.ubuntu.com/3727-1/
- https://www.oracle.com/security-alerts/cpuoct2020.html