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No exploitation reportedFix available

CVE-2021-43618

No exploitation reported by the sources we read.

  • Published2021-11-15
  • WeaknessCWE-190

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

GNU Multiple Precision Arithmetic Library (GMP) through 6.2.1 has an mpz/inp_raw.c integer overflow and resultant buffer overflow via crafted input, leading to a segmentation fault on 32-bit platforms.

Timeline

dates in UTC
  1. 2021-11-1504:15CVE publishedNVD

Versions per branch

NVD
Debian debian linux
BranchAffectedFixed in
9.0= 9.0no fix published
Gmplib gmp
BranchAffectedFixed in
6.2≤ 6.2.1no fix published
Netapp active iq unified manager
BranchAffectedFixed in
—all versionsno fix published

5 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • gmpWolfiall versions · fixed in 6.2.1-r4
  • gmpUbuntu:Pro:16.04:LTSall versions · fixed in 2:6.1.0+dfsg-2ubuntu0.1~esm1
  • gmpUbuntu:Pro:14.04:LTSall versions · fixed in 2:5.1.3+dfsg-1ubuntu1+esm1
  • gmpUbuntu:20.04:LTSall versions · fixed in 2:6.2.0+dfsg-4ubuntu0.1
  • gmpUbuntu:18.04:LTSall versions · fixed in 2:6.1.2+dfsg-2ubuntu0.1
  • gmpTuxCare:OracleLinux:7all versions · fixed in 1:6.0.0-15.el7.tuxcare.els1and 2 other packages
  • gmpTuxCare:CentOS:7all versions · fixed in 1:6.0.0-15.el7.tuxcare.els1and 2 other packages
  • gmpTuxCare:AlmaLinux:9.2all versions · fixed in 1:6.2.0-10.el9.tuxcare.els1and 3 other packages

43 more package ranges on OSV.dev

Vendor advisories

  • CVE-2021-43618 Red Hat Product Security265 products fixed · 6 known affected

    gmp: Integer overflow and resultant buffer overflow via crafted input

    gmp-devel as a component of Red Hat Enterprise Linux 6 · gmp-static as a component of Red Hat Enterprise Linux 6 · gmp.src as a component of Red Hat Enterprise Linux 6 · +3 more

  • RHSA-2024:3214 Red Hat Product Security31 products fixed

    Red Hat Security Advisory: gmp security update

  • RHSA-2024:2092 Red Hat Product Security63 products fixed

    Red Hat Security Advisory: security update Logging for Red Hat OpenShift - 5.6.18

  • RHSA-2024:2093 Red Hat Product Security63 products fixed

    Red Hat Security Advisory: security update Logging for Red Hat OpenShift - 5.7.13

  • RHSA-2024:1412 Red Hat Product Security31 products fixed

    Red Hat Security Advisory: gmp update

  • RHSA-2024:1102 Red Hat Product Security31 products fixed

    Red Hat Security Advisory: gmp security update

3 more advisories

Full record on NVD

Fix

  1. Vendor fix Red Hat Product Security RHSA-2024:3214 · 31 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
  2. Vendor fix Red Hat Product Security RHSA-2024:2092 · 63 productsFor OpenShift Container Platform 4.11 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this errata update: https://docs.openshift.com/container-platform/4.11/release_notes/ocp-4-11-release-not…
  3. Vendor fix Red Hat Product Security RHSA-2024:2093 · 63 productsFor OpenShift Container Platform 4.11 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this errata update: https://docs.openshift.com/container-platform/4.12/release_notes/ocp-4-12-release-not…
  4. Vendor fix Red Hat Product Security RHSA-2024:1412 · 31 productsBefore applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
  5. Vendor fix Siemens ProductCERT SSA-398330 · 1 productUpdate to V3.1.5 or later version
  6. Vendor fix CISA ICSA-23-348-10 · 5 productsUpdate to V3.1.5 or later version

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
2021-11-15
Last Modified
2026-10-14
NVD status
Modified
GitHub Advisory
GHSA-mfg4-w44m-wr4g

Frequently asked questions

What is CVE-2021-43618?

GNU Multiple Precision Arithmetic Library (GMP) through 6.2.1 has an mpz/inp_raw.c integer overflow and resultant buffer overflow via crafted input, leading to a segmentation fault on 32-bit platforms.

Is CVE-2021-43618 actively exploited?

Active exploitation of CVE-2021-43618 has not been confirmed. Its EPSS score was 4.5% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-43618?

CVE-2021-43618 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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