ISOMAN

CVE

CVE-2018-18751

An issue was discovered in GNU gettext 0.19.8. There is a double free in default_add_message in read-catalog.c, related to an invalid free in po_gram_parse in po-gram-gen.y, as demonstrated by lt-msgfmt.

Severity
CRITICAL
CVSS
9.8
Published
Modified

Linked Releases

References

  1. http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00061.html
  2. http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00065.html
  3. http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00025.html
  4. https://access.redhat.com/errata/RHSA-2019:3643
  5. https://github.com/CCCCCrash/POCs/tree/master/Bin/Tools-gettext-0.19.8.1/doublefree
  6. https://github.com/CCCCCrash/POCs/tree/master/Bin/Tools-gettext-0.19.8.1/heapcorruption
  7. https://usn.ubuntu.com/3815-1/
  8. https://usn.ubuntu.com/3815-2/
  9. http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00061.html
  10. http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00065.html
  11. http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00025.html
  12. https://access.redhat.com/errata/RHSA-2019:3643
  13. https://github.com/CCCCCrash/POCs/tree/master/Bin/Tools-gettext-0.19.8.1/doublefree
  14. https://github.com/CCCCCrash/POCs/tree/master/Bin/Tools-gettext-0.19.8.1/heapcorruption
  15. https://usn.ubuntu.com/3815-1/
  16. https://usn.ubuntu.com/3815-2/