CVE-2021-3826

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Source
https://cve.org/CVERecord?id=CVE-2021-3826
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-3826.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-3826
Downstream
Related
Published
2022-09-01T21:15:08.843Z
Modified
2026-04-02T07:27:22.932776Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

Heap/stack buffer overflow in the dlang_lname function in d-demangle.c in libiberty allows attackers to potentially cause a denial of service (segmentation fault and crash) via a crafted mangled symbol.

References

Affected packages

Git / github.com/gcc-mirror/gcc

Affected ranges

Type
GIT
Repo
https://github.com/gcc-mirror/gcc
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
7ca388565af176bd4efd4f8db1e5e9e11e98ef45
Database specific 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "11.2"
        }
    ]
}

Affected versions

Other
basepoints/gcc-0
basepoints/gcc-10
basepoints/gcc-11
basepoints/gcc-12
basepoints/gcc-13
basepoints/gcc-14
basepoints/gcc-15
basepoints/gcc-16
basepoints/gcc-5
basepoints/gcc-6
basepoints/gcc-7
basepoints/gcc-8
basepoints/gcc-9
embedded-9-2020-q2
embedded-9-2020q2
misc/cutover-cvs2svn
misc/cutover-egcs-0
misc/cutover-egcs-1
misc/cutover-git
misc/first-auto-changelog
misc/first-auto-changelog-10
misc/first-auto-changelog-8
misc/first-auto-changelog-9
misc/first-egcs-checkin
misc/gccgo-go1_1_2
misc/gupc_5_2_0_release
misc/last-fsf-checkin
misc/start
prereleases/egcs-1.*
prereleases/egcs-1.0.1-prerelease
prereleases/egcs-1.0.2-980309-prerelease
prereleases/egcs-1.0.2-prerelease
prereleases/egcs-1.0.3-prerelease
prereleases/egcs-1.1-prerelease
prereleases/egcs-1.1.1-pre
prereleases/egcs-1.1.1-prerelease
prereleases/egcs-1.1.1-prerelease-2
prereleases/egcs-1.1.1-prerelease-3
prereleases/egcs-1.1.2-prerelease-1
prereleases/egcs-1.1.2-prerelease-2
prereleases/egcs-1.1.2-prerelease-3
prereleases/gcc-2.*
prereleases/gcc-2.8
prereleases/gcc-2.95-test
prereleases/gcc-2.95.3-test1
prereleases/gcc-2.95.3-test2
prereleases/gcc-2.95.3-test3
prereleases/gcc-2.95.3-test4
prereleases/gcc-2.95.3-test5
prereleases/gcc-4.*
prereleases/gcc-4.2.3-rc1
prereleases/gcc-4.2.4-rc1
prereleases/gcc-4.3.2-rc1
prereleases/libgcj-0.*
prereleases/libgcj-0.1
prereleases/libstdc++-2.*
prereleases/libstdc++-2.92
prereleases/libstdc++-3.*
prereleases/libstdc++-3.0.95
prereleases/libstdc++-3.0.96
prereleases/libstdc++-3.0.97
release-12.*
release-12.2.mpacbti-bet1
release-12.2.mpacbti-rel1
releases/egcs-1.*
releases/egcs-1.0.0
releases/egcs-1.0.1
releases/egcs-1.0.2
releases/egcs-1.0.3
releases/egcs-1.1.0
releases/egcs-1.1.1
releases/egcs-1.1.2
releases/g77-0.*
releases/g77-0.5.21
releases/g77-0.5.22
releases/gcc-10.*
releases/gcc-10.1.0
releases/gcc-10.2.0
releases/gcc-10.3.0
releases/gcc-10.4.0
releases/gcc-10.5.0
releases/gcc-11.*
releases/gcc-11.1.0
releases/gcc-11.2.0
releases/gcc-12.*
releases/gcc-12.1.0
releases/gcc-12.2.0
releases/gcc-12.3.0
releases/gcc-12.4.0
releases/gcc-12.5.0
releases/gcc-13.*
releases/gcc-13.1.0
releases/gcc-13.2.0
releases/gcc-13.3.0
releases/gcc-13.4.0
releases/gcc-14.*
releases/gcc-14.1.0
releases/gcc-14.2.0
releases/gcc-14.3.0
releases/gcc-15.*
releases/gcc-15.1.0
releases/gcc-15.2.0
releases/gcc-2.*
releases/gcc-2.8.0
releases/gcc-2.8.1
releases/gcc-2.95.0
releases/gcc-2.95.1
releases/gcc-2.95.2
releases/gcc-2.95.2.1
releases/gcc-2.95.3
releases/gcc-3.*
releases/gcc-3.0.0
releases/gcc-3.0.1
releases/gcc-3.0.2
releases/gcc-3.0.3
releases/gcc-3.0.4
releases/gcc-3.1.0
releases/gcc-3.1.1
releases/gcc-3.2.0
releases/gcc-3.2.1
releases/gcc-3.2.2
releases/gcc-3.2.3
releases/gcc-3.3.0
releases/gcc-3.3.1
releases/gcc-3.3.2
releases/gcc-3.3.3
releases/gcc-3.3.4
releases/gcc-3.3.5
releases/gcc-3.3.6
releases/gcc-3.4.0
releases/gcc-3.4.1
releases/gcc-3.4.2
releases/gcc-3.4.3
releases/gcc-3.4.4
releases/gcc-3.4.5
releases/gcc-3.4.6
releases/gcc-4.*
releases/gcc-4.0.0
releases/gcc-4.0.1
releases/gcc-4.0.2
releases/gcc-4.0.3
releases/gcc-4.0.4
releases/gcc-4.1.0
releases/gcc-4.1.1
releases/gcc-4.1.2
releases/gcc-4.2.0
releases/gcc-4.2.1
releases/gcc-4.2.2
releases/gcc-4.2.3
releases/gcc-4.2.4
releases/gcc-4.3.0
releases/gcc-4.3.1
releases/gcc-4.3.2
releases/gcc-4.3.3
releases/gcc-4.3.4
releases/gcc-4.3.5
releases/gcc-4.3.6
releases/gcc-4.4.0
releases/gcc-4.4.1
releases/gcc-4.4.2
releases/gcc-4.4.3
releases/gcc-4.4.4
releases/gcc-4.4.5
releases/gcc-4.4.6
releases/gcc-4.4.7
releases/gcc-4.5.0
releases/gcc-4.5.1
releases/gcc-4.5.2
releases/gcc-4.5.3
releases/gcc-4.5.4
releases/gcc-4.6.0
releases/gcc-4.6.1
releases/gcc-4.6.2
releases/gcc-4.6.3
releases/gcc-4.6.4
releases/gcc-4.7.0
releases/gcc-4.7.1
releases/gcc-4.7.2
releases/gcc-4.7.3
releases/gcc-4.7.4
releases/gcc-4.8.0
releases/gcc-4.8.1
releases/gcc-4.8.2
releases/gcc-4.8.3
releases/gcc-4.8.4
releases/gcc-4.8.5
releases/gcc-4.9.0
releases/gcc-4.9.1
releases/gcc-4.9.2
releases/gcc-4.9.3
releases/gcc-4.9.4
releases/gcc-5.*
releases/gcc-5.1.0
releases/gcc-5.2.0
releases/gcc-5.3.0
releases/gcc-5.4.0
releases/gcc-5.5.0
releases/gcc-6.*
releases/gcc-6.1.0
releases/gcc-6.2.0
releases/gcc-6.3.0
releases/gcc-6.4.0
releases/gcc-6.5.0
releases/gcc-7.*
releases/gcc-7.1.0
releases/gcc-7.2.0
releases/gcc-7.3.0
releases/gcc-7.4.0
releases/gcc-7.5.0
releases/gcc-8.*
releases/gcc-8.1.0
releases/gcc-8.2.0
releases/gcc-8.3.0
releases/gcc-8.4.0
releases/gcc-8.5.0
releases/gcc-9.*
releases/gcc-9.1.0
releases/gcc-9.2.0
releases/gcc-9.3.0
releases/gcc-9.4.0
releases/gcc-9.5.0
releases/libf2c-0.*
releases/libf2c-0.5.21
releases/libf2c-0.5.22
releases/libgcj-2.*
releases/libgcj-2.95.0
releases/libgcj-2.95.1
vendors/ARM/release-12.*
vendors/ARM/release-12.3.rel1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-3826.json"
unresolved_ranges 
[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "35"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "36"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "37"
            }
        ]
    }
]