librabbitmq: integer overflow in amqp_handle_input in amqp_connection.c leads to heap-based buffer overflow
Published Dec 1, 2019
9.8
CRITICALCVSS 3.1
EPSS 3.32%
Description
An issue was discovered in amqp_handle_input in amqp_connection.c in rabbitmq-c 0.9.0. There is an integer overflow that leads to heap memory corruption in the handling of CONNECTION_STATE_HEADER. A rogue server could return a malicious frame header that leads to a smaller target_size value than needed. This condition is then carried on to a memcpy function that copies too much data into a heap buffer.
Affected products
No data.
Configuration 1
- < 0.10.0
Configuration 2
- 30
- 31
Configuration 3
- 14.04
- 16.04
- 18.04
- 19.04
- 19.10
Configuration 4
- 8.0
No data.
Red Hat Enterprise Linux 7
librabbitmq-0:0.8.0-3.el7
Fixed · RHSA-2020:3949
Red Hat Enterprise Linux 8
librabbitmq-0:0.9.0-2.el8
Fixed · RHSA-2020:4445
Red Hat OpenStack Platform 10 (Newton) Operational Tools
librabbitmq
Out of support scope
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | librabbitmq-0:0.8.0-3.el7 | Fixed | RHSA-2020:3949 |
| Red Hat Enterprise Linux 8 | librabbitmq-0:0.9.0-2.el8 | Fixed | RHSA-2020:4445 |
| Red Hat OpenStack Platform 10 (Newton) Operational Tools | librabbitmq | Out of support scope | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
1 other source (Red Hat) ▾
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:P/I:P/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 v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (23 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 3.32% (0.03317) | 88.19th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.32% (0.03317) | 86.95th | v5 (v2026.06.15) |
| May 9, 2026 | 1.55% (0.01547) | 81.53th | v4 (v2025.03.14) |
| Nov 21, 2025 | 2.76% (0.02763) | 85.52th | v4 (v2025.03.14) |
| Nov 18, 2025 | 5.27% (0.05269) | 88.98th | v4 (v2025.03.14) |
| Mar 30, 2025 | 2.24% (0.02243) | 83.08th | v4 (v2025.03.14) |
| Mar 29, 2025 | 5.62% (0.05617) | 83.48th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.24% (0.02243) | 83.40th | v4 (v2025.03.14) |
| Dec 17, 2024 | 0.43% (0.00431) | 74.20th | v3 (v2023.03.01) |
| Mar 26, 2024 | 0.66% (0.00656) | 79.02th | v3 (v2023.03.01) |
| Nov 8, 2023 | 0.66% (0.00665) | 77.35th | v3 (v2023.03.01) |
| Nov 7, 2023 | 0.75% (0.00754) | 79.02th | v3 (v2023.03.01) |
| Oct 22, 2023 | 0.66% (0.00661) | 77.29th | v3 (v2023.03.01) |
| Oct 5, 2023 | 0.69% (0.00688) | 77.76th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.71% (0.00709) | 77.36th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.54% (0.01537) | 74.52th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.54% (0.01537) | 74.48th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.54% (0.01537) | 72.41th | v2 (v2022.01.01) |
| Feb 4, 2022 | 17.17% (0.17166) | 93.10th | v2 (v2022.01.01) |
| Feb 3, 2022 | 7.18% (0.07180) | 83.80th | v1 |
| Jan 6, 2022 | 7.18% (0.07180) | 83.64th | v1 |
| Sep 1, 2021 | 1.70% (0.01695) | 74.02th | v1 |
| Apr 14, 2021 | 1.70% (0.01695) | 0.00th | v1 |
References (13)
- https://access.redhat.com/security/cve/CVE-2019-18609 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1786646 Issue Tracking
- https://github.com/alanxz/rabbitmq-c/blob/master/ChangeLog.md x_refsource_MISCThird Party Advisory
- https://github.com/alanxz/rabbitmq-c/commit/fc85be7123050b91b054e45b91c78d3241a5047a x_refsource_CONFIRMPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/12/msg00004.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WA7CPNVYMF6OQNIYNLWUY6U2GTKFOKH3/ vendor-advisoryx_refsource_FEDORA
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XQER6XTKYMHNQR7QTHW7DJAH645WQROU/ vendor-advisoryx_refsource_FEDORA
- https://news.ycombinator.com/item?id=21681976 x_refsource_MISCIssue TrackingThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2019-18609
- https://security.gentoo.org/glsa/202003-07 vendor-advisoryx_refsource_GENTOOThird Party Advisory
- https://usn.ubuntu.com/4214-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/4214-2/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2019-18609
Change history (0)
No recorded changes yet.