objstack in GNU Aspell 0.60.8 has a heap-based buffer overflow in acommon::ObjStack::dup_top (called from acommon::StringMap::add and acommon::Config::lookup_list).
https://www.debian.org/security/2021/dsa-4948
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H7E4EI7F6TVN7K6XWU6HSANMCOKKEREE/
https://lists.debian.org/debian-lts-announce/2021/07/msg00021.html
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/aspell/OSV-2020-521.yaml
https://github.com/gnuaspell/aspell/commit/0718b375425aad8e54e1150313b862e4c6fd324a
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=18462
Source: Mitre, NVD
Published: 2021-07-20
Updated: 2023-11-07
Base Score: 4.6
Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P
Severity: Medium
Base Score: 7.8
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Severity: High
EPSS: 0.0005