# CVE-2018-10103: tcpdump: The tcpdump packages contain the tcpdump utility for monitoring network traffic

CVE-2018-10103 is fixed in tcpdump on 1 platform, first by tcpdump 4.9.3-0ubuntu0.18.04.1, released September 29, 2019. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2018-10103
- Priority: High
- CVSS: 9.8 (Moderate)
- EPSS: 0.0407
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 29, 2019

## Description

The tcpdump packages contain the tcpdump utility for monitoring network traffic. The tcpdump utility can capture and display the packet headers on a particular network interface or on all interfaces.  The following packages have been upgraded to a later upstream version: tcpdump (4.9.3). (BZ#1804063)  Security Fix(es):  * tcpdump: SMB data printing mishandled (CVE-2018-10103)  * tcpdump: SMB data printing mishandled (CVE-2018-10105)  * tcpdump: Out of bounds read/write in get_next_file() in tcpdump.c (CVE-2018-14879)  * tcpdump: Buffer over-read in ldp_tlv_print() function in print-ldp.c (CVE-2018-14461)  * tcpdump: Buffer over-read in icmp_print() function in print-icmp.c (CVE-2018-14462)  * tcpdump: Buffer over-read in vrrp_print() function in print-vrrp.c (CVE-2018-14463)  * tcpdump: Buffer over-read in lmp_print_data_link_subobjs() function in print-lmp.c (CVE-2018-14464)  * tcpdump: Buffer over-read in rsvp_obj_print() function in print-rsvp.c (CVE-2018-14465)  * tcpdump: Buffer over-read in print-icmp6.c (CVE-2018-14466)  * tcpdump: Buffer over-read in bgp_capabilities_print() in print-bgp.c (CVE-2018-14467)  * tcpdump: Buffer over-read in mfr_print() function in print-fr.c (CVE-2018-14468)  * tcpdump: Buffer over-read in ikev1_n_print() function in print-isakmp.c (CVE-2018-14469)  * tcpdump: Buffer over-read in babel_print_v2() in print-babel.c (CVE-2018-14470)  * tcpdump: Buffer over-read in ospf6_print_lshdr() function in print-ospf6.c (CVE-2018-14880)  * tcpdump: Buffer over-read in bgp_capabilities_print() function in print-bgp.c (CVE-2018-14881)  * tcpdump: Buffer over-read in function rpl_dio_printopt in print-icmp6.c (CVE-2018-14882)  * tcpdump: Buffer over-read in print-802_11.c (CVE-2018-16227)  * tcpdump: Access to uninitialized buffer in print_prefix() function in print-hncp.c (CVE-2018-16228)  * tcpdump: Buffer over-read in dccp_print_option() function in print-dccp.c (CVE-2018-16229)  * tcpdump: Buffer over-read in bgp_attr_print() function in print-bgp.c (CVE-2018-16230)  * tcpdump: Resource exhaustion in bgp_attr_print() function in print-bgp.c (CVE-2018-16300)  * tcpdump: Buffer over-read in print_trans() function in print-smb.c (CVE-2018-16451)  * tcpdump: Resource exhaustion in smb_fdata() funtion in smbutil.c (CVE-2018-16452)  * tcpdump: Buffer overflow in lmp_print_data_link_subobjs() in print-lmp.c (CVE-2019-15166)  For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.  Additional Changes:  For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.3 Release Notes linked from the References section.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | tcpdump RHEL 8 | 14:4.9.3-1.el8 | [RHSA-2020:4760](https://patchblox.com/security/data/fix/linux/rhsa-2020-4760.md) | Nov 4, 2020 |
| Linux | tcpdump Ubuntu 18.04.6 LTS (bionic) | 4.9.3-0ubuntu0.18.04.1 | [tcpdump 4.9.3-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-tcpdump-4.9.3-0ubuntu0.18.04.1.md) | Sep 29, 2019 |
| Linux | tcpdump ol 8 | 14:4.9.3-1.el8 | [ELSA-2020-4760](https://patchblox.com/security/data/fix/linux/elsa-2020-4760.md) | Nov 10, 2020 |

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Data as of 2026-11-07T12:40:37Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo