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CVSS: 9.8EPSS: 2%CPEs: 7EXPL: 2

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. Se ha descubierto un problema en GNU gettext 0.19.8. Hay una doble liberación (double free) en default_add_message en read-catalog.c, relacionado con una liberación no válida en po_gram_parse en po-gram-gen.y, tal y como queda demostrado con lt-msgfmt. • http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00061.html http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00065.html http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00025.html https://access.redhat.com/errata/RHSA-2019:3643 https://github.com/CCCCCrash/POCs/tree/master/Bin/Tools-gettext-0.19.8.1/doublefree https://github.com/CCCCCrash/POCs/tree/master/Bin/Tools-gettext-0.19.8.1/heapcorruption https://usn.ubuntu.com/3815-1 https:// • CWE-415: Double Free CWE-416: Use After Free •