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Fencer Intel
high 7.5

CVE-2020-15890 json

LuaJit through 2.1.0-beta3 has an out-of-bounds read because __gc handler frame traversal is mishandled.

published 6y ago modified 4mo ago also EUVD-2020-7864

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.1%
EPSS 3.1% chance of exploitation in 30 days, percentile 87%
public exploits
0
none known

Summary

LuaJit through 2.1.0-beta3 has an out-of-bounds read because __gc handler frame traversal is mishandled.

Patch / fix

  • luajit Debian 14, Debian 13, Debian 12 2.1.0~beta3+git20210112+dfsg-2

debian advisories DEBIAN-CVE-2020-15890

  • luajit Ubuntu 16.04 LTS 2.0.4+dfsg-1+deb9u1build0.16.04.1

ubuntu advisories UBUNTU-CVE-2020-15890

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • SLOF advanced virtualization 8.2 20191022-3.git899d9883.module+el8.2.0+5449+efc036dd
  • hivex advanced virtualization 8.2 1.3.18-20.module+el8.2.0+5588+63a201c3
  • netcf advanced virtualization 8.2 0.2.8-12.module+el8.2.0+4793+b09dd2fb
  • swtpm advanced virtualization 8.2 0.2.0-2.20200127gitff5a83b.module+el8.2.0+5579+d71178e0
  • libnbd advanced virtualization 8.2 1.2.2-1.module+el8.2.0+5644+32ac38d4
  • nbdkit advanced virtualization 8.2 1.16.2-4.module+el8.2.1+6710+effcb1df
  • libtpms advanced virtualization 8.2 0.7.0-1.20191018gitdc116933b7.module+el8.2.0+4793+b09dd2fb
  • libvirt advanced virtualization 8.2 6.0.0-25.module+el8.2.1+7154+47ffd890

red hat advisories RHBA-2020:3172

  • luajit Alpine 3.13 2.2.0-r3

alpine advisories ALPINE-CVE-2020-15890

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Is CVE-2020-15890 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-15890 updated cvss 7.5

luajit: out-of-bounds read because __gc handler frame traversal is mishandled

  • Red Hat OpenShift Service Mesh 1 servicemesh-proxy
    affected: no fix planned “Will not fix”
  • Red Hat Advanced Virtualization CodeReady Builder for RHEL 8.2.1 libnbd 1.2.2-1.module+el8.2.0+5644+32ac38d4, netcf 0.2.8-12.module+el8.2.0+4793+b09dd2fb, hivex 1.3.18-20.module+el8.2.0+5588+63a201c3, nbdfuse 1.2.2-1.module+el8.2.0+5644+32ac38d4, libvirt 6.0.0-25.module+el8.2.1+7154+47ffd890, seabios 1.13.0-2.module+el8.2.1+7284+aa32a2c4, +45 more Red Hat Advanced Virtualization for RHEL 8.2.1 libnbd 1.2.2-1.module+el8.2.0+5644+32ac38d4, netcf 0.2.8-12.module+el8.2.0+4793+b09dd2fb, hivex 1.3.18-20.module+el8.2.0+5588+63a201c3, nbdfuse 1.2.2-1.module+el8.2.0+5644+32ac38d4, nbdkit 1.16.2-4.module+el8.2.1+6710+effcb1df, libvirt 6.0.0-25.module+el8.2.1+7154+47ffd890, +96 more
    fixed: vendor fix RHBA-2020:3172

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

3.13% chance of exploitation in the next 30 days, higher than 87% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • github.com https://github.com/LuaJIT/LuaJIT/issues/601 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.