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Red Hat Security Advisory 2020-1792-01

Red Hat Security Advisory 2020-1792-01
Posted Apr 28, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-1792-01 - The curl packages provide the libcurl library and the curl utility for downloading files from servers using various protocols, including HTTP, FTP, and LDAP. Issues addressed include buffer overflow and double free vulnerabilities.

tags | advisory, web, overflow, vulnerability, protocol
systems | linux, redhat
advisories | CVE-2019-5436, CVE-2019-5481, CVE-2019-5482
MD5 | 18d77e36f531d8ecfa916126fffa8ef4

Red Hat Security Advisory 2020-1792-01

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====================================================================
Red Hat Security Advisory

Synopsis: Moderate: curl security update
Advisory ID: RHSA-2020:1792-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:1792
Issue date: 2020-04-28
CVE Names: CVE-2019-5436 CVE-2019-5481 CVE-2019-5482
====================================================================
1. Summary:

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

Red Hat Product Security has rated this update as having a security impact
of Moderate. 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.

2. Relevant releases/architectures:

Red Hat Enterprise Linux BaseOS (v. 8) - aarch64, ppc64le, s390x, x86_64

3. Description:

The curl packages provide the libcurl library and the curl utility for
downloading files from servers using various protocols, including HTTP,
FTP, and LDAP.

Security Fix(es):

* curl: double free due to subsequent call of realloc() (CVE-2019-5481)

* curl: heap buffer overflow in function tftp_receive_packet()
(CVE-2019-5482)

* curl: TFTP receive heap buffer overflow in tftp_receive_packet() function
(CVE-2019-5436)

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 8.2 Release Notes linked from the References section.

4. 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

5. Bugs fixed (https://bugzilla.redhat.com/):

1710620 - CVE-2019-5436 curl: TFTP receive heap buffer overflow in tftp_receive_packet() function
1749402 - CVE-2019-5481 curl: double free due to subsequent call of realloc()
1749652 - CVE-2019-5482 curl: heap buffer overflow in function tftp_receive_packet()

6. Package List:

Red Hat Enterprise Linux BaseOS (v. 8):

Source:
curl-7.61.1-12.el8.src.rpm

aarch64:
curl-7.61.1-12.el8.aarch64.rpm
curl-debuginfo-7.61.1-12.el8.aarch64.rpm
curl-debugsource-7.61.1-12.el8.aarch64.rpm
curl-minimal-debuginfo-7.61.1-12.el8.aarch64.rpm
libcurl-7.61.1-12.el8.aarch64.rpm
libcurl-debuginfo-7.61.1-12.el8.aarch64.rpm
libcurl-devel-7.61.1-12.el8.aarch64.rpm
libcurl-minimal-7.61.1-12.el8.aarch64.rpm
libcurl-minimal-debuginfo-7.61.1-12.el8.aarch64.rpm

ppc64le:
curl-7.61.1-12.el8.ppc64le.rpm
curl-debuginfo-7.61.1-12.el8.ppc64le.rpm
curl-debugsource-7.61.1-12.el8.ppc64le.rpm
curl-minimal-debuginfo-7.61.1-12.el8.ppc64le.rpm
libcurl-7.61.1-12.el8.ppc64le.rpm
libcurl-debuginfo-7.61.1-12.el8.ppc64le.rpm
libcurl-devel-7.61.1-12.el8.ppc64le.rpm
libcurl-minimal-7.61.1-12.el8.ppc64le.rpm
libcurl-minimal-debuginfo-7.61.1-12.el8.ppc64le.rpm

s390x:
curl-7.61.1-12.el8.s390x.rpm
curl-debuginfo-7.61.1-12.el8.s390x.rpm
curl-debugsource-7.61.1-12.el8.s390x.rpm
curl-minimal-debuginfo-7.61.1-12.el8.s390x.rpm
libcurl-7.61.1-12.el8.s390x.rpm
libcurl-debuginfo-7.61.1-12.el8.s390x.rpm
libcurl-devel-7.61.1-12.el8.s390x.rpm
libcurl-minimal-7.61.1-12.el8.s390x.rpm
libcurl-minimal-debuginfo-7.61.1-12.el8.s390x.rpm

x86_64:
curl-7.61.1-12.el8.x86_64.rpm
curl-debuginfo-7.61.1-12.el8.i686.rpm
curl-debuginfo-7.61.1-12.el8.x86_64.rpm
curl-debugsource-7.61.1-12.el8.i686.rpm
curl-debugsource-7.61.1-12.el8.x86_64.rpm
curl-minimal-debuginfo-7.61.1-12.el8.i686.rpm
curl-minimal-debuginfo-7.61.1-12.el8.x86_64.rpm
libcurl-7.61.1-12.el8.i686.rpm
libcurl-7.61.1-12.el8.x86_64.rpm
libcurl-debuginfo-7.61.1-12.el8.i686.rpm
libcurl-debuginfo-7.61.1-12.el8.x86_64.rpm
libcurl-devel-7.61.1-12.el8.i686.rpm
libcurl-devel-7.61.1-12.el8.x86_64.rpm
libcurl-minimal-7.61.1-12.el8.i686.rpm
libcurl-minimal-7.61.1-12.el8.x86_64.rpm
libcurl-minimal-debuginfo-7.61.1-12.el8.i686.rpm
libcurl-minimal-debuginfo-7.61.1-12.el8.x86_64.rpm

These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2019-5436
https://access.redhat.com/security/cve/CVE-2019-5481
https://access.redhat.com/security/cve/CVE-2019-5482
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.2_release_notes/index

8. Contact:

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

Copyright 2020 Red Hat, Inc.
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