Buffer Overflow Affecting blktrace package, versions <0:1.0.5-9.el7
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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Test your applications- Snyk IDSNYK-RHEL7-BLKTRACE-4880180
- published26 Jul 2021
- disclosed2 May 2018
Introduced: 2 May 2018
CVE-2018-10689 (opens in a new tab)How to fix?
Upgrade RHEL:7 blktrace to version 0:1.0.5-9.el7 or higher.
This issue was patched in RHSA-2019:2162.
NVD Description
Note: Versions mentioned in the description apply only to the upstream blktrace package and not the blktrace package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
blktrace (aka Block IO Tracing) 1.2.0, as used with the Linux kernel and Android, has a buffer overflow in the dev_map_read function in btt/devmap.c because the device and devno arrays are too small, as demonstrated by an invalid free when using the btt program with a crafted file.
References
- http://www.securityfocus.com/bid/104142
- https://access.redhat.com/security/cve/CVE-2018-10689
- http://git.kernel.dk/?p=blktrace.git;a=log;h=d61ff409cb4dda31386373d706ea0cfb1aaac5b7
- https://git.kernel.org/pub/scm/linux/kernel/git/axboe/blktrace.git/commit/?id=d61ff409cb4dda31386373d706ea0cfb1aaac5b7
- https://www.spinics.net/lists/linux-btrace/msg00847.html
- https://access.redhat.com/errata/RHSA-2019:2162
- http://git.kernel.dk/?p=blktrace.git%3Ba=log%3Bh=d61ff409cb4dda31386373d706ea0cfb1aaac5b7
- https://security.gentoo.org/glsa/202107-15