PT-2019-5260 · Tcpdump+1 · Libpcap+1

Published 2019-10-03 · Updated 2021-03-03 · CVE-2019-15163

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions libpcap versions prior to 1.9.1

Description The issue is related to a denial of service caused by a NULL pointer dereference and daemon crash in the rpcapd/daemon.c component of the libpcap library. This can occur if a crypt() call fails. The vulnerability can be exploited by a remote attacker to cause a denial of service.

Recommendations For versions prior to 1.9.1, update to version 1.9.1 or later to resolve the issue. As a temporary workaround, consider restricting access to the rpcapd/daemon.c component to minimize the risk of exploitation.

Fix

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

ALT-PU-2019-3119

ALT-PU-2020-3562

ALT-PU-2021-1432

BDU:2020-02115

CVE-2019-15163

MGASA-2019-0297

Affected Products

Alt Linux

Libpcap

References · 30

• https://github.com/the-tcpdump-group/libpcap/commit/437b273761adedcbd880f714bfa44afeec186a31 · Patch
• https://bdu.fstec.ru/vul/2020-02115 · Security Note
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5P5K3DQ4TFSZBDB3XN4CZNJNQ3UIF3D3 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-15163 · Security Note
• https://osv.dev/vulnerability/ALPINE-CVE-2019-15163 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/[e-mail]/message/GBIEKWLNIR62KZ5GA7EDXZS52HU6OE5F · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2019-0297 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GBIEKWLNIR62KZ5GA7EDXZS52HU6OE5F · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2019-15163 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UZTIPUWABYUE5KQOLCKAW65AUUSB7QO6 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/[e-mail]/message/UZTIPUWABYUE5KQOLCKAW65AUUSB7QO6 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/[e-mail]/message/5P5K3DQ4TFSZBDB3XN4CZNJNQ3UIF3D3 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2019-15163 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2019-0297.html · Security Note
• https://osv.dev/vulnerability/CVE-2019-15163 · Vendor Advisory