When unwinding through a signal frame the backtrace function on PowerPC didn't check array bounds when storing the frame address. Reference: https://sourceware.org/bugzilla/show_bug.cgi?id=25423 Upstream commit: https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=d93769405996dfc11d216ddbe415946617b5a494
Created glibc tracking bugs for this issue: Affects: fedora-all [bug 1811589]
Statement: This flaw did not affect the versions of `glibc` as shipped with Red Hat Enterprise Linux 5, 6, and 7, as they did not include the vulnerable code, which was introduced in a later version of the package.
This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2020:4444 https://access.redhat.com/errata/RHSA-2020:4444
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s): https://access.redhat.com/security/cve/cve-2020-1751