blktrace: buffer overflow in the dev_map_read function in btt/devmap.c
Published May 3, 2018
5.5
MEDIUMCVSS 3.0
EPSS 1.89%
Description
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.
Affected products
No data.
- 1.2.0
- 1.2.0
No data.
Red Hat Enterprise Linux 7
blktrace-0:1.0.5-9.el7
Fixed · RHSA-2019:2162
Red Hat Enterprise Linux 5
blktrace
Will not fix
Red Hat Enterprise Linux 6
blktrace
Will not fix
Red Hat Enterprise Linux 8
blktrace
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | blktrace-0:1.0.5-9.el7 | Fixed | RHSA-2019:2162 |
| Red Hat Enterprise Linux 5 | blktrace | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | blktrace | Will not fix | n/a |
| Red Hat Enterprise Linux 8 | blktrace | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Red Hat Product Security has rated this issue as having a security impact of Low, and a future update may address this flaw.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L
AV:N/AC:M/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (19 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 1.89% (0.01889) | 78.82th | v5 (v2026.06.15) |
| Sep 22, 2026 | 1.89% (0.01889) | 78.64th | v5 (v2026.06.15) |
| Sep 21, 2026 | 3.13% (0.03131) | 87.28th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.89% (0.01889) | 78.62th | v5 (v2026.06.15) |
| Sep 6, 2026 | 1.96% (0.01959) | 78.99th | v5 (v2026.06.15) |
| Sep 5, 2026 | 3.25% (0.03246) | 87.50th | v5 (v2026.06.15) |
| Aug 30, 2026 | 1.96% (0.01959) | 78.89th | v5 (v2026.06.15) |
| Aug 28, 2026 | 3.25% (0.03246) | 87.42th | v5 (v2026.06.15) |
| Aug 24, 2026 | 1.96% (0.01959) | 78.77th | v5 (v2026.06.15) |
| Aug 23, 2026 | 3.25% (0.03246) | 87.37th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.00% (0.02001) | 78.11th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.08% (0.00082) | 21.57th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.18% (0.00181) | 56.75th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.18% (0.00177) | 54.21th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.13% (0.00128) | 45.74th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.11% (0.01108) | 55.18th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.11% (0.01108) | 29.61th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.45% (0.01454) | 32.67th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.25% (0.01247) | 0.00th | v1 |
References (10)
- http://git.kernel.dk/?p=blktrace.git%3Ba=log%3Bh=d61ff409cb4dda31386373d706ea0cfb1aaac5b7 x_refsource_MISC
- http://www.securityfocus.com/bid/104142 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2019:2162 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2018-10689 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1575119 Issue Tracking
- https://git.kernel.org/pub/scm/linux/kernel/git/axboe/blktrace.git/commit/?id=d61ff409cb4dda31386373d706ea0cfb1aaac5b7 x_refsource_MISCPatch
- https://nvd.nist.gov/vuln/detail/CVE-2018-10689
- https://security.gentoo.org/glsa/202107-15 vendor-advisoryx_refsource_GENTOO
- https://www.cve.org/CVERecord?id=CVE-2018-10689
- https://www.spinics.net/lists/linux-btrace/msg00847.html x_refsource_MISCMailing ListThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://git.kernel.dk/?p=blktrace.git%3Ba=log%3Bh=d61ff409cb4dda31386373d706ea0cfb1aaac5b7 | x_refsource_MISC | |
| http://www.securityfocus.com/bid/104142 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/errata/RHSA-2019:2162 | vendor-advisoryx_refsource_REDHAT | |
| https://access.redhat.com/security/cve/CVE-2018-10689 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1575119 | Issue Tracking | |
| https://git.kernel.org/pub/scm/linux/kernel/git/axboe/blktrace.git/commit/?id=d61ff409cb4dda31386373d706ea0cfb1aaac5b7 | x_refsource_MISCPatch | |
| https://nvd.nist.gov/vuln/detail/CVE-2018-10689 | ||
| https://security.gentoo.org/glsa/202107-15 | vendor-advisoryx_refsource_GENTOO | |
| https://www.cve.org/CVERecord?id=CVE-2018-10689 | ||
| https://www.spinics.net/lists/linux-btrace/msg00847.html | x_refsource_MISCMailing ListThird Party Advisory |
Change history (0)
No recorded changes yet.