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Red Hat Product Errata RHSA-2021:4236 - Security Advisory
Issued:
2021-11-09
Updated:
2021-11-09

RHSA-2021:4236 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

Low: tcpdump security and bug fix update

Type/Severity

Security Advisory: Low

Red Hat Insights patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

An update for tcpdump is now available for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact of Low. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

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.

Security Fix(es):

  • tcpdump: ppp decapsulator can be convinced to allocate a large amount of memory (CVE-2020-8037)

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 8.5 Release Notes linked from the References section.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

  • Red Hat Enterprise Linux for x86_64 8 x86_64
  • Red Hat Enterprise Linux for x86_64 - Extended Update Support 8.6 x86_64
  • Red Hat Enterprise Linux Server - AUS 8.6 x86_64
  • Red Hat Enterprise Linux for IBM z Systems 8 s390x
  • Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 8.6 s390x
  • Red Hat Enterprise Linux for Power, little endian 8 ppc64le
  • Red Hat Enterprise Linux for Power, little endian - Extended Update Support 8.6 ppc64le
  • Red Hat Enterprise Linux Server - TUS 8.6 x86_64
  • Red Hat Enterprise Linux for ARM 64 8 aarch64
  • Red Hat Enterprise Linux for ARM 64 - Extended Update Support 8.6 aarch64
  • Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 8.6 ppc64le
  • Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 8.6 x86_64

Fixes

  • BZ - 1860216 - tcpdump can not parse mptcp options
  • BZ - 1895080 - CVE-2020-8037 tcpdump: ppp decapsulator can be convinced to allocate a large amount of memory

CVEs

  • CVE-2020-8037

References

  • https://access.redhat.com/security/updates/classification/#low
  • https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.5_release_notes/
Note: More recent versions of these packages may be available. Click a package name for more details.

Red Hat Enterprise Linux for x86_64 8

SRPM
tcpdump-4.9.3-2.el8.src.rpm SHA-256: 8f8172ba8cda99f02ee4b6006b4894dff6c292180cce0add3074a802c6953d9e
x86_64
tcpdump-4.9.3-2.el8.x86_64.rpm SHA-256: 40b60e76df77a025a3391129cc997a536d6fe220a05d636f31507a1bd92f2363
tcpdump-debuginfo-4.9.3-2.el8.x86_64.rpm SHA-256: 4db75cab3526619900691d89f812e82e24f99485982673b13c74cf1143be2607
tcpdump-debugsource-4.9.3-2.el8.x86_64.rpm SHA-256: ce290f1e41bd7268bffadf8cb1ea3ddb5533716bd432ab475a4e5910c253f87c

Red Hat Enterprise Linux for x86_64 - Extended Update Support 8.6

SRPM
tcpdump-4.9.3-2.el8.src.rpm SHA-256: 8f8172ba8cda99f02ee4b6006b4894dff6c292180cce0add3074a802c6953d9e
x86_64
tcpdump-4.9.3-2.el8.x86_64.rpm SHA-256: 40b60e76df77a025a3391129cc997a536d6fe220a05d636f31507a1bd92f2363
tcpdump-debuginfo-4.9.3-2.el8.x86_64.rpm SHA-256: 4db75cab3526619900691d89f812e82e24f99485982673b13c74cf1143be2607
tcpdump-debugsource-4.9.3-2.el8.x86_64.rpm SHA-256: ce290f1e41bd7268bffadf8cb1ea3ddb5533716bd432ab475a4e5910c253f87c

Red Hat Enterprise Linux Server - AUS 8.6

SRPM
tcpdump-4.9.3-2.el8.src.rpm SHA-256: 8f8172ba8cda99f02ee4b6006b4894dff6c292180cce0add3074a802c6953d9e
x86_64
tcpdump-4.9.3-2.el8.x86_64.rpm SHA-256: 40b60e76df77a025a3391129cc997a536d6fe220a05d636f31507a1bd92f2363
tcpdump-debuginfo-4.9.3-2.el8.x86_64.rpm SHA-256: 4db75cab3526619900691d89f812e82e24f99485982673b13c74cf1143be2607
tcpdump-debugsource-4.9.3-2.el8.x86_64.rpm SHA-256: ce290f1e41bd7268bffadf8cb1ea3ddb5533716bd432ab475a4e5910c253f87c

Red Hat Enterprise Linux for IBM z Systems 8

SRPM
tcpdump-4.9.3-2.el8.src.rpm SHA-256: 8f8172ba8cda99f02ee4b6006b4894dff6c292180cce0add3074a802c6953d9e
s390x
tcpdump-4.9.3-2.el8.s390x.rpm SHA-256: 1edc74f6ce2c7129208ea1d4b483844e09ac59b238d7b23e4ae77bb7f5a45e2a
tcpdump-debuginfo-4.9.3-2.el8.s390x.rpm SHA-256: ca49e4a994a00fa312e2f7f7242994fae2393b45a689364e26292c09364c2f30
tcpdump-debugsource-4.9.3-2.el8.s390x.rpm SHA-256: 86818ea89a314335a700ab123c29cff7a3887754b57d6fe3e3909d166412c2b0

Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 8.6

SRPM
tcpdump-4.9.3-2.el8.src.rpm SHA-256: 8f8172ba8cda99f02ee4b6006b4894dff6c292180cce0add3074a802c6953d9e
s390x
tcpdump-4.9.3-2.el8.s390x.rpm SHA-256: 1edc74f6ce2c7129208ea1d4b483844e09ac59b238d7b23e4ae77bb7f5a45e2a
tcpdump-debuginfo-4.9.3-2.el8.s390x.rpm SHA-256: ca49e4a994a00fa312e2f7f7242994fae2393b45a689364e26292c09364c2f30
tcpdump-debugsource-4.9.3-2.el8.s390x.rpm SHA-256: 86818ea89a314335a700ab123c29cff7a3887754b57d6fe3e3909d166412c2b0

Red Hat Enterprise Linux for Power, little endian 8

SRPM
tcpdump-4.9.3-2.el8.src.rpm SHA-256: 8f8172ba8cda99f02ee4b6006b4894dff6c292180cce0add3074a802c6953d9e
ppc64le
tcpdump-4.9.3-2.el8.ppc64le.rpm SHA-256: 6c55197ffb8a7a7fd946cbab11dce2d15bc9cc1fb0054449f0a7a6bc8d8786c9
tcpdump-debuginfo-4.9.3-2.el8.ppc64le.rpm SHA-256: eb83005cb9ad1342eb753f5d0c654b1a97333155a531113d5575824581fee3ce
tcpdump-debugsource-4.9.3-2.el8.ppc64le.rpm SHA-256: 5aa62932b101cff4161cfcab81556608b8685062d9e011b8a90b17290fa4f46d

Red Hat Enterprise Linux for Power, little endian - Extended Update Support 8.6

SRPM
tcpdump-4.9.3-2.el8.src.rpm SHA-256: 8f8172ba8cda99f02ee4b6006b4894dff6c292180cce0add3074a802c6953d9e
ppc64le
tcpdump-4.9.3-2.el8.ppc64le.rpm SHA-256: 6c55197ffb8a7a7fd946cbab11dce2d15bc9cc1fb0054449f0a7a6bc8d8786c9
tcpdump-debuginfo-4.9.3-2.el8.ppc64le.rpm SHA-256: eb83005cb9ad1342eb753f5d0c654b1a97333155a531113d5575824581fee3ce
tcpdump-debugsource-4.9.3-2.el8.ppc64le.rpm SHA-256: 5aa62932b101cff4161cfcab81556608b8685062d9e011b8a90b17290fa4f46d

Red Hat Enterprise Linux Server - TUS 8.6

SRPM
tcpdump-4.9.3-2.el8.src.rpm SHA-256: 8f8172ba8cda99f02ee4b6006b4894dff6c292180cce0add3074a802c6953d9e
x86_64
tcpdump-4.9.3-2.el8.x86_64.rpm SHA-256: 40b60e76df77a025a3391129cc997a536d6fe220a05d636f31507a1bd92f2363
tcpdump-debuginfo-4.9.3-2.el8.x86_64.rpm SHA-256: 4db75cab3526619900691d89f812e82e24f99485982673b13c74cf1143be2607
tcpdump-debugsource-4.9.3-2.el8.x86_64.rpm SHA-256: ce290f1e41bd7268bffadf8cb1ea3ddb5533716bd432ab475a4e5910c253f87c

Red Hat Enterprise Linux for ARM 64 8

SRPM
tcpdump-4.9.3-2.el8.src.rpm SHA-256: 8f8172ba8cda99f02ee4b6006b4894dff6c292180cce0add3074a802c6953d9e
aarch64
tcpdump-4.9.3-2.el8.aarch64.rpm SHA-256: 175f4812bddcd537ca5215a5bd6a786daa60fbae6968f841ff9dc0e3f47fad59
tcpdump-debuginfo-4.9.3-2.el8.aarch64.rpm SHA-256: 96651723d0db48d2fee0ff9dd0d4acb90d612eca4628c33ad49a79715debc454
tcpdump-debugsource-4.9.3-2.el8.aarch64.rpm SHA-256: f9351ad9aac5f122bc2fea65b9b30d2be48be926b5dff48845eacaf0a31bac82

Red Hat Enterprise Linux for ARM 64 - Extended Update Support 8.6

SRPM
tcpdump-4.9.3-2.el8.src.rpm SHA-256: 8f8172ba8cda99f02ee4b6006b4894dff6c292180cce0add3074a802c6953d9e
aarch64
tcpdump-4.9.3-2.el8.aarch64.rpm SHA-256: 175f4812bddcd537ca5215a5bd6a786daa60fbae6968f841ff9dc0e3f47fad59
tcpdump-debuginfo-4.9.3-2.el8.aarch64.rpm SHA-256: 96651723d0db48d2fee0ff9dd0d4acb90d612eca4628c33ad49a79715debc454
tcpdump-debugsource-4.9.3-2.el8.aarch64.rpm SHA-256: f9351ad9aac5f122bc2fea65b9b30d2be48be926b5dff48845eacaf0a31bac82

Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 8.6

SRPM
tcpdump-4.9.3-2.el8.src.rpm SHA-256: 8f8172ba8cda99f02ee4b6006b4894dff6c292180cce0add3074a802c6953d9e
ppc64le
tcpdump-4.9.3-2.el8.ppc64le.rpm SHA-256: 6c55197ffb8a7a7fd946cbab11dce2d15bc9cc1fb0054449f0a7a6bc8d8786c9
tcpdump-debuginfo-4.9.3-2.el8.ppc64le.rpm SHA-256: eb83005cb9ad1342eb753f5d0c654b1a97333155a531113d5575824581fee3ce
tcpdump-debugsource-4.9.3-2.el8.ppc64le.rpm SHA-256: 5aa62932b101cff4161cfcab81556608b8685062d9e011b8a90b17290fa4f46d

Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 8.6

SRPM
tcpdump-4.9.3-2.el8.src.rpm SHA-256: 8f8172ba8cda99f02ee4b6006b4894dff6c292180cce0add3074a802c6953d9e
x86_64
tcpdump-4.9.3-2.el8.x86_64.rpm SHA-256: 40b60e76df77a025a3391129cc997a536d6fe220a05d636f31507a1bd92f2363
tcpdump-debuginfo-4.9.3-2.el8.x86_64.rpm SHA-256: 4db75cab3526619900691d89f812e82e24f99485982673b13c74cf1143be2607
tcpdump-debugsource-4.9.3-2.el8.x86_64.rpm SHA-256: ce290f1e41bd7268bffadf8cb1ea3ddb5533716bd432ab475a4e5910c253f87c

The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.

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