Divide By Zero Affecting libdwarf package, versions *
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL7-LIBDWARF-1384169
- published26 Jul 2021
- disclosed24 Jul 2019
Introduced: 24 Jul 2019
CVE-2019-14249 (opens in a new tab)How to fix?
There is no fixed version for RHEL:7 libdwarf.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libdwarf package and not the libdwarf package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
dwarf_elf_load_headers.c in libdwarf before 2019-07-05 allows attackers to cause a denial of service (division by zero) via an ELF file with a zero-size section group (SHT_GROUP), as demonstrated by dwarfdump.
References
- http://www.securityfocus.com/bid/109380
- https://access.redhat.com/security/cve/CVE-2019-14249
- https://sourceforge.net/p/libdwarf/code/ci/cb7198abde46c2ae29957ad460da6886eaa606ba/tree/libdwarf/dwarf_elf_load_headers.c?diff=99e77c3894877a1dd80b82808d8309eded4e5599
- https://sourceforge.net/p/libdwarf/code/merge-requests/4/