RHSA-2020:3873 - Security Advisory

Topic

An update for libsrtp is now available for Red Hat Enterprise Linux 7.

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.

Description

The libsrtp package provides an implementation of the Secure Real-time Transport Protocol (SRTP), the Universal Security Transform (UST), and a supporting cryptographic kernel.

Security Fix(es):

• libsrtp: improper handling of CSRC count and extension header length in RTP header (CVE-2015-6360)
• libsrtp: buffer overflow in application of crypto profiles (CVE-2013-2139)

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 7.9 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 Server 7 x86_64
• Red Hat Enterprise Linux Workstation 7 x86_64
• Red Hat Enterprise Linux Desktop 7 x86_64
• Red Hat Enterprise Linux for IBM z Systems 7 s390x
• Red Hat Enterprise Linux for Power, big endian 7 ppc64
• Red Hat Enterprise Linux for Scientific Computing 7 x86_64
• Red Hat Enterprise Linux for Power, little endian 7 ppc64le

Fixes

• BZ - 970697 - CVE-2013-2139 libsrtp: buffer overflow in application of crypto profiles
• BZ - 1301202 - libsrtp global-buffer-overflow
• BZ - 1323702 - CVE-2015-6360 libsrtp: improper handling of CSRC count and extension header length in RTP header
• BZ - 1323705 - CVE-2015-6360 libsrtp: improper handling of CSRC count and extension header length in RTP header [rhel-7]

CVEs

• CVE-2013-2139
• CVE-2015-6360

References

• https://access.redhat.com/security/updates/classification/#moderate
• https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/7.9_release_notes/index