An issue was discovered in elfutils 0.175. A segmentation fault can occur in the function elf64_xlatetom in libelf/elf32_xlatetom.c, due to dwfl_segment_report_module not checking whether the dyn data read from a core file is truncated. A crafted input can cause a program crash, leading to denial-of-service, as demonstrated by eu-stack. References: https://sourceware.org/bugzilla/show_bug.cgi?id=24103 https://sourceware.org/ml/elfutils-devel/2019-q1/msg00070.html Upstream Patch: https://sourceware.org/git/?p=elfutils.git;a=commit;h=da5c5336a1eaf519de246f7d9f0f5585e1d4ac59
Created elfutils tracking bugs for this issue: Affects: fedora-all [bug 1680044]
The title and description are slightly unfortunate since the issue doesn't have anything to do with the elf64_xlatetom function. That function just happens to be the function that accesses some undefined memory (indirectly through a memmove call). A better description would be "eu-stack can crash when reading a corrupt or partial core file".
Flagging openshift-online-3 as NOTAFFECTED since binaries ship as part of RHEL.
This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2019:2197 https://access.redhat.com/errata/RHSA-2019:2197
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-2019-7150
This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2019:3575 https://access.redhat.com/errata/RHSA-2019:3575