CVE catalog

CVE-2022-27943

gcc-12 affected and fixed versions

[CVE catalog]

libiberty/rust-demangle.c in GNU GCC 11.2 allows stack consumption in demangle_const, as demonstrated by nm-new.

Severity: Medium · CVSS 5.5CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Published: Mar 26, 2022, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.95% · Oct 27, 2026

Projects and upstream resources

[gcc-13-cross-mipsen][Source-reported homepage]

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Distribution / release	Package	Version	Status	Source
Debiantrixie	gcc-12	Not reported	AffectedDistribution reports no fix	[CVE-2022-27943]
Debiantrixie	gcc-12	`12.4.0-5`	Affected	[CVE-2022-27943]
Debiansid	gcc-12	Not reported	AffectedDistribution reports no fix	[CVE-2022-27943]
Debiansid	gcc-12	`12.5.0-11`	Affected	[CVE-2022-27943]
Debianforky	gcc-12	Not reported	AffectedDistribution reports no fix	[CVE-2022-27943]
Debianforky	gcc-12	`12.5.0-11`	Affected	[CVE-2022-27943]
Debianbookworm	gcc-12	Not reported	AffectedDistribution reports no fix	[CVE-2022-27943]
Debianbookworm	gcc-12	`12.2.0-14+deb12u1`	Affected	[CVE-2022-27943]
UnknownRelease not reported	gcc-12	Not reported	UnknownSource applicability is not established	Provider not reported

Provider details and historical evidence

Distribution / release	Package	Version	Status	Source
UnknownRelease not reported	gcc-12	Not reported	UnknownSource applicability is not established	Provider not reported
Debianbookworm	gcc-12	Not reported	AffectedDistribution reports no fix	[CVE-2022-27943]
Debianbookworm	gcc-12	`12.2.0-14+deb12u1`	Affected	[CVE-2022-27943]
Debianforky	gcc-12	Not reported	AffectedDistribution reports no fix	[CVE-2022-27943]
Debianforky	gcc-12	`12.5.0-11`	Affected	[CVE-2022-27943]
Debiansid	gcc-12	Not reported	AffectedDistribution reports no fix	[CVE-2022-27943]
Debiansid	gcc-12	`12.5.0-11`	Affected	[CVE-2022-27943]
Debiantrixie	gcc-12	Not reported	AffectedDistribution reports no fix	[CVE-2022-27943]
Debiantrixie	gcc-12	`12.4.0-5`	Affected	[CVE-2022-27943]

Original provider fields

{
  "package_releases": [
    {
      "name": "gcc-12",
      "status": "vulnerable",
      "release": "sid",
      "version": "12.5.0-11"
    },
    {
      "name": "gcc-12",
      "status": "vulnerable",
      "release": "forky",
      "version": "12.5.0-11"
    },
    {
      "name": "gcc-12",
      "status": "vulnerable",
      "release": "trixie",
      "version": "12.4.0-5"
    },
    {
      "name": "gcc-12",
      "status": "vulnerable",
      "release": "bookworm",
      "version": "12.2.0-14+deb12u1"
    }
  ],
  "fixed_versions": [
    {
      "bug": null,
      "name": "gcc-12",
      "type": "source",
      "origin": null,
      "release": "sid",
      "urgency": "unimportant",
      "fixed_version": ""
    },
    {
      "bug": null,
      "name": "gcc-12",
      "type": "source",
      "origin": null,
      "release": "forky",
      "urgency": "unimportant",
      "fixed_version": ""
    },
    {
      "bug": null,
      "name": "gcc-12",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "unimportant",
      "fixed_version": ""
    },
    {
      "bug": null,
      "name": "gcc-12",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "unimportant",
      "fixed_version": ""
    }
  ],
  "distribution_packages": [
    {
      "name": "gcc-12",
      "fixed_version": "not yet fixed",
      "applicability_unknown": true
    },
    {
      "name": "gcc",
      "ranges": [],
      "ecosystem": "cpe",
      "provider_url": "https://nvd.nist.gov/vuln/detail/CVE-2022-27943",
      "fixed_version": "",
      "provider_source": "nvd",
      "provider_record_id": "NVD-CVE-2022-27943",
      "provider_updated_at": "2026-10-14T17:17:37.830"
    },
    {
      "name": "fedora",
      "ranges": [],
      "ecosystem": "cpe",
      "provider_url": "https://nvd.nist.gov/vuln/detail/CVE-2022-27943",
      "fixed_version": "",
      "provider_source": "nvd",
      "provider_record_id": "NVD-CVE-2022-27943",
      "provider_updated_at": "2026-10-14T17:17:37.830"
    }
  ]
}

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

[cpp-12]Unknown
Source package: [gcc-12]
Details (2)
- 12.2.0-14+deb12u1 · amd64 · bookworm
  Affected
  dsa · gcc-12 · debian · bookworm
- 12.2.0-14+deb12u1 · arm64 · bookworm
  Affected
  dsa · gcc-12 · debian · bookworm
[g++-12]Unknown
Source package: [gcc-12]
Details (2)
- 12.2.0-14+deb12u1 · amd64 · bookworm
  Affected
  dsa · gcc-12 · debian · bookworm
- 12.2.0-14+deb12u1 · arm64 · bookworm
  Affected
  dsa · gcc-12 · debian · bookworm
[g++-12-multilib]Unknown
Source package: [gcc-12]
Details (1)
- 12.2.0-14+deb12u1 · amd64 · bookworm
  Affected
  dsa · gcc-12 · debian · bookworm
[gcc-12]Unknown
Details (2)
- 12.2.0-14+deb12u1 · amd64 · bookworm
  Affected
  dsa · gcc-12 · debian · bookworm
- 12.2.0-14+deb12u1 · arm64 · bookworm
  Affected
  dsa · gcc-12 · debian · bookworm
[gcc-12-base]Unknown
Source package: [gcc-12]
Details (2)
- 12.2.0-14+deb12u1 · amd64 · bookworm
  Affected
  dsa · gcc-12 · debian · bookworm
- 12.2.0-14+deb12u1 · arm64 · bookworm
  Affected
  dsa · gcc-12 · debian · bookworm
[gcc-12-hppa64-linux-gnu]Unknown
Source package: [gcc-12]
Details (1)
- 12.2.0-14+deb12u1 · amd64 · bookworm
  Affected
  dsa · gcc-12 · debian · bookworm
[gcc-12-locales]Unknown
Source package: [gcc-12]
Details (2)
- 12.2.0-14+deb12u1 · all · bookworm
  Affected
  dsa · gcc-12 · debian · bookworm
- 12.2.0-14+deb12u1 · all · bookworm
  Affected
  dsa · gcc-12 · debian · bookworm
[gcc-12-multilib]Unknown
Source package: [gcc-12]
Details (1)
- 12.2.0-14+deb12u1 · amd64 · bookworm
  Affected
  dsa · gcc-12 · debian · bookworm
[gcc-12-offload-amdgcn]Unknown
Source package: [gcc-12]
Details (1)
- 12.2.0-14+deb12u1 · amd64 · bookworm
  Affected
  dsa · gcc-12 · debian · bookworm
[gcc-12-offload-nvptx]Unknown
Source package: [gcc-12]
Details (1)
- 12.2.0-14+deb12u1 · amd64 · bookworm
  Affected
  dsa · gcc-12 · debian · bookworm
[gcc-12-plugin-dev]Unknown
Source package: [gcc-12]
Details (2)
- 12.2.0-14+deb12u1 · amd64 · bookworm
  Affected
  dsa · gcc-12 · debian · bookworm
- 12.2.0-14+deb12u1 · arm64 · bookworm
  Affected
  dsa · gcc-12 · debian · bookworm
[gcc-12-source]Unknown
Source package: [gcc-12]
Details (2)
- 12.2.0-14+deb12u1 · all · bookworm
  Affected
  dsa · gcc-12 · debian · bookworm
- 12.2.0-14+deb12u1 · all · bookworm
  Affected
  dsa · gcc-12 · debian · bookworm
[gcc-12-test-results]Unknown
Source package: [gcc-12]
Details (2)
- 12.2.0-14+deb12u1 · amd64 · bookworm
  Affected
  dsa · gcc-12 · debian · bookworm
- 12.2.0-14+deb12u1 · arm64 · bookworm
  Affected
  dsa · gcc-12 · debian · bookworm
[gccgo-12]Unknown
Source package: [gcc-12]
Details (2)
- 12.2.0-14+deb12u1 · amd64 · bookworm
  Affected
  dsa · gcc-12 · debian · bookworm
- 12.2.0-14+deb12u1 · arm64 · bookworm
  Affected
  dsa · gcc-12 · debian · bookworm
[gccgo-12-multilib]Unknown
Source package: [gcc-12]
Details (1)
- 12.2.0-14+deb12u1 · amd64 · bookworm
  Affected
  dsa · gcc-12 · debian · bookworm
[gdc-12]Unknown
Source package: [gcc-12]
Details (2)
- 12.2.0-14+deb12u1 · amd64 · bookworm
  Affected
  dsa · gcc-12 · debian · bookworm
- 12.2.0-14+deb12u1 · arm64 · bookworm
  Affected
  dsa · gcc-12 · debian · bookworm
[gdc-12-multilib]Unknown
Source package: [gcc-12]
Details (1)
- 12.2.0-14+deb12u1 · amd64 · bookworm
  Affected
  dsa · gcc-12 · debian · bookworm
[gfortran-12]Unknown
Source package: [gcc-12]
Details (2)
- 12.2.0-14+deb12u1 · amd64 · bookworm
  Affected
  dsa · gcc-12 · debian · bookworm
- 12.2.0-14+deb12u1 · arm64 · bookworm
  Affected
  dsa · gcc-12 · debian · bookworm
[gfortran-12-multilib]Unknown
Source package: [gcc-12]
Details (1)
- 12.2.0-14+deb12u1 · amd64 · bookworm
  Affected
  dsa · gcc-12 · debian · bookworm
[gm2-12]Unknown
Source package: [gcc-12]
Details (2)
- 12.2.0-14+deb12u1 · amd64 · bookworm
  Affected
  dsa · gcc-12 · debian · bookworm
- 12.2.0-14+deb12u1 · arm64 · bookworm
  Affected
  dsa · gcc-12 · debian · bookworm

Next results

Observed: Oct 23, 2026, 6:25:47 PM UTC

References

[CERT-Bund public advisories] · [CISA cybersecurity advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]