RHSA-2021:1609 - Security Advisory

Topic

An update for p11-kit 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.

Description

The p11-kit packages provide a mechanism to manage PKCS#11 modules. The p11-kit-trust subpackage includes a PKCS#11 trust module that provides certificate anchors and black lists based on configuration files.

The following packages have been upgraded to a later upstream version: p11-kit (0.23.22). (BZ#1887853)

Security Fix(es):

• p11-kit: integer overflow when allocating memory for arrays or attributes and object identifiers (CVE-2020-29361)
• p11-kit: out-of-bounds read in p11_rpc_buffer_get_byte_array function in rpc-message.c (CVE-2020-29362)
• p11-kit: out-of-bounds write in p11_rpc_buffer_get_byte_array_value function in rpc-message.c (CVE-2020-29363)

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 8.4 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 IBM z Systems 8 s390x
• Red Hat Enterprise Linux for Power, little endian 8 ppc64le
• Red Hat Enterprise Linux for ARM 64 8 aarch64

Fixes

• BZ - 1665172 - SIGABRT when trust anchor read a malformed file
• BZ - 1890464 - p11-kit freeze for invalid module configuration
• BZ - 1903588 - CVE-2020-29363 p11-kit: out-of-bounds write in p11_rpc_buffer_get_byte_array_value function in rpc-message.c
• BZ - 1903590 - CVE-2020-29362 p11-kit: out-of-bounds read in p11_rpc_buffer_get_byte_array function in rpc-message.c
• BZ - 1903592 - CVE-2020-29361 p11-kit: integer overflow when allocating memory for arrays or attributes and object identifiers

CVEs

• CVE-2020-29361
• CVE-2020-29362
• CVE-2020-29363

References

• https://access.redhat.com/security/updates/classification/#moderate
• https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.4_release_notes/