Buffer overflow in GNU Aspell
CVE-2019-25051
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).
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (43.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 43.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- GNU Aspell — versions 0.60.8
- Debian Linux — versions 9.0, 10.0
- Fedoraproject Fedora — versions 34
Weakness classification (CWE)
References
- github.com/google/oss-fuzz-vulns/blob/main/vulns/aspell/OSV-2020-521.yaml (Third Party Advisory)
- github.com/gnuaspell/aspell/commit/0718b375425aad8e54e1150313b862e4c6fd324a (Patch, Third Party Advisory)
- bugs.chromium.org/p/oss-fuzz/issues/detail (Third Party Advisory)
- lists.debian.org/debian-lts-announce/2021/07/msg00021.html (mailing-list, Mailing List, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- www.debian.org/security/2021/dsa-4948 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-25051?
- CVE-2019-25051 is a high-severity vulnerability in GNU Aspell, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2021-07-20.
- How severe is CVE-2019-25051?
- High severity. CVSS v3 base score is 7.8 out of 10.