elfutils: excessive memory allocation in read_long_names in elf_begin.c in libelf
Published Jan 29, 2019
6.5
MEDIUMCVSS 3.0
EPSS 1.60%
Description
An attempted excessive memory allocation was discovered in the function read_long_names in elf_begin.c in libelf in elfutils 0.174. Remote attackers could leverage this vulnerability to cause a denial-of-service via crafted elf input, which leads to an out-of-memory exception. NOTE: The maintainers believe this is not a real issue, but instead a "warning caused by ASAN because the allocation is big. By setting ASAN_OPTIONS=allocator_may_return_null=1 and running the reproducer, nothing happens."
Affected products
No data.
- 0.174
No data.
Red Hat Enterprise Linux 5
elfutils
Not affected
Red Hat Enterprise Linux 6
elfutils
Not affected
Red Hat Enterprise Linux 7
elfutils
Not affected
Red Hat Enterprise Linux 8
elfutils
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | elfutils | Not affected | n/a |
| Red Hat Enterprise Linux 6 | elfutils | Not affected | n/a |
| Red Hat Enterprise Linux 7 | elfutils | Not affected | n/a |
| Red Hat Enterprise Linux 8 | elfutils | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/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:N/UI:R/S:U/C:N/I:N/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
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 1.60% (0.01598) | 74.89th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.58% (0.01585) | 72.31th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.14% (0.00140) | 50.10th | v3 (v2023.03.01) |
| Jun 21, 2024 | 0.14% (0.00140) | 49.88th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.14% (0.00140) | 47.86th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.05% (0.01055) | 52.13th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.05% (0.01055) | 48.43th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.56% (0.02561) | 61.74th | v2 (v2022.01.01) |
| Feb 3, 2022 | 2.30% (0.02304) | 53.71th | v5 (v2026.06.15) |
| Jan 6, 2022 | 2.30% (0.02304) | 53.25th | v1 |
| Sep 1, 2021 | 0.52% (0.00523) | 32.27th | v1 |
| Apr 14, 2021 | 0.52% (0.00523) | 0.00th | v1 |
References (5)
- https://access.redhat.com/security/cve/CVE-2019-7148 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1671439 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2019-7148
- https://sourceware.org/bugzilla/show_bug.cgi?id=24085 x_refsource_MISCExploitIssue TrackingThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2019-7148
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2019-7148 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1671439 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2019-7148 | ||
| https://sourceware.org/bugzilla/show_bug.cgi?id=24085 | x_refsource_MISCExploitIssue TrackingThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2019-7148 |
Change history (0)
No recorded changes yet.