libpcap: Mishandled length values in reused variables
Published Oct 3, 2019
5.3
MEDIUMCVSS 3.1
EPSS 2.76%
Description
rpcapd/daemon.c in libpcap before 1.9.1 mishandles certain length values because of reuse of a variable. This may open up an attack vector involving extra data at the end of a request.
Affected products
No data.
No data.
Red Hat Enterprise Linux 6
libpcap
Not affected
Red Hat Enterprise Linux 7
libpcap
Not affected
Red Hat Enterprise Linux 8
libpcap
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | libpcap | Not affected | n/a |
| Red Hat Enterprise Linux 7 | libpcap | Not affected | n/a |
| Red Hat Enterprise Linux 8 | libpcap | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue did not affect the versions of libpcap as shipped with Red Hat Enterprise Linux 6, 7, and 8 as they did not include support for RPCAPD.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:N/I:P/A:N
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 1, 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 (18 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.76% (0.02764) | 85.78th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.76% (0.02764) | 84.33th | v5 (v2026.06.15) |
| Mar 30, 2025 | 2.86% (0.02859) | 85.01th | v4 (v2025.03.14) |
| Mar 29, 2025 | 5.10% (0.05095) | 82.66th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.86% (0.02859) | 85.32th | v4 (v2025.03.14) |
| Dec 17, 2024 | 0.74% (0.00743) | 80.73th | v3 (v2023.03.01) |
| Sep 26, 2024 | 3.15% (0.03153) | 91.28th | v3 (v2023.03.01) |
| Jan 27, 2024 | 1.62% (0.01624) | 86.19th | v3 (v2023.03.01) |
| Sep 9, 2023 | 1.17% (0.01167) | 83.21th | v3 (v2023.03.01) |
| Sep 3, 2023 | 1.02% (0.01023) | 81.96th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.46% (0.00458) | 71.41th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.69% (0.02686) | 82.85th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.69% (0.02686) | 81.17th | v2 (v2022.01.01) |
| Feb 4, 2022 | 23.44% (0.23437) | 94.77th | v2 (v2022.01.01) |
| Feb 3, 2022 | 11.74% (0.11741) | 88.45th | v1 |
| Jan 6, 2022 | 11.74% (0.11741) | 88.31th | v1 |
| Jan 5, 2022 | 2.88% (0.02880) | 81.26th | v5 (v2026.06.15) |
| Apr 14, 2021 | 2.88% (0.02880) | 0.00th | v1 |
References (17)
- http://seclists.org/fulldisclosure/2019/Dec/26 mailing-listx_refsource_FULLDISC
- https://access.redhat.com/security/cve/CVE-2019-15161 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1760623 Issue Tracking
- https://github.com/the-tcpdump-group/libpcap/blob/libpcap-1.9/CHANGES x_refsource_CONFIRMProductRelease Notes
- https://github.com/the-tcpdump-group/libpcap/commit/617b12c0339db4891d117b661982126c495439ea x_refsource_CONFIRMPatchThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5P5K3DQ4TFSZBDB3XN4CZNJNQ3UIF3D3/ vendor-advisoryx_refsource_FEDORA
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GBIEKWLNIR62KZ5GA7EDXZS52HU6OE5F/ vendor-advisoryx_refsource_FEDORA
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UZTIPUWABYUE5KQOLCKAW65AUUSB7QO6/ vendor-advisoryx_refsource_FEDORA
- https://nvd.nist.gov/vuln/detail/CVE-2019-15161
- https://seclists.org/bugtraq/2019/Dec/23 mailing-listx_refsource_BUGTRAQ
- https://support.apple.com/kb/HT210785 x_refsource_CONFIRM
- https://support.apple.com/kb/HT210788 x_refsource_CONFIRM
- https://support.apple.com/kb/HT210789 x_refsource_CONFIRM
- https://support.apple.com/kb/HT210790 x_refsource_CONFIRM
- https://www.cve.org/CVERecord?id=CVE-2019-15161
- https://www.oracle.com/security-alerts/cpuapr2020.html x_refsource_MISC
- https://www.tcpdump.org/public-cve-list.txt x_refsource_CONFIRMVendor Advisory
Change history (0)
No recorded changes yet.