CVE-2021-3826

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Summary

CVECVE-2021-3826
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-09-01 21:15:08 UTC
Updated2026-10-14 10:17:48 UTC
DescriptionHeap/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.

Risk And Classification

Primary CVSS: v3.1 6.5 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Problem Types: CWE-119 | CWE-787 | CWE-119 CWE-119

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Fedoraproject Fedora 35 All All All
Operating System Fedoraproject Fedora 36 All All All
Operating System Fedoraproject Fedora 37 All All All
Application Gnu Gcc 11.2 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na Gcc affected gcc 11.2.0 Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified
ADP Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified

References

ReferenceSourceLinkTags
cert-portal.siemens.com/productcert/html/ssa-398330.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
[SECURITY] Fedora 35 Update: insight-13.0.50.20220502-1.fc35 - package-announce - Fedora Mailing-Lists af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org Mailing List, Third Party Advisory
[SECURITY] Fedora 36 Update: mingw-binutils-2.37-5.fc36 - package-announce - Fedora Mailing-Lists af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org Mailing List, Third Party Advisory
[SECURITY] Fedora 36 Update: mingw-gdb-12.1-2.fc36 - package-announce - Fedora Mailing-Lists af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org Mailing List, Third Party Advisory
gcc.gnu.org Git af854a3a-2127-422b-91ae-364da2661108 gcc.gnu.org Broken Link
[SECURITY] Fedora 36 Update: mingw-gcc-11.2.1-6.fc36 - package-announce - Fedora Mailing-Lists af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org Mailing List, Third Party Advisory
[SECURITY] Fedora 37 Update: mingw-binutils-2.38-5.fc37 - package-announce - Fedora Mailing-Lists af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org Mailing List, Third Party Advisory
[PATCH] libiberty: prevent null dereferencing on dlang_type af854a3a-2127-422b-91ae-364da2661108 gcc.gnu.org Mailing List, Patch, Vendor Advisory
[SECURITY] Fedora 36 Update: mingw-binutils-2.37-5.fc36 - package-announce - Fedora Mailing-Lists MITRE lists.fedoraproject.org
[SECURITY] Fedora 37 Update: mingw-binutils-2.38-5.fc37 - package-announce - Fedora Mailing-Lists MITRE lists.fedoraproject.org
[SECURITY] Fedora 35 Update: insight-13.0.50.20220502-1.fc35 - package-announce - Fedora Mailing-Lists MITRE lists.fedoraproject.org
[SECURITY] Fedora 36 Update: mingw-gdb-12.1-2.fc36 - package-announce - Fedora Mailing-Lists MITRE lists.fedoraproject.org
[SECURITY] Fedora 36 Update: mingw-gcc-11.2.1-6.fc36 - package-announce - Fedora Mailing-Lists MITRE lists.fedoraproject.org
gcc.gnu.org Git - gcc.git/commit MITRE gcc.gnu.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 161078 Oracle Enterprise Linux Security Update for gdb (ELSA-2023-6372)
  • 182579 Debian Security Update for libibertybinutils (CVE-2021-3826)
  • 241553 Red Hat Update for devtoolset-12-binutils (RHSA-2023:3269)
  • 242296 Red Hat Update for gdb (RHSA-2023:6372)
  • 283099 Fedora Security Update for insight (FEDORA-2022-8e1df11a7a)
  • 283289 Fedora Security Update for mingw (FEDORA-2022-19538a3732)
  • 283290 Fedora Security Update for mingw (FEDORA-2022-affcf9eea6)
  • 283299 Fedora Security Update for mingw (FEDORA-2022-c9a1fd5370)
  • 283446 Fedora Security Update for mingw (FEDORA-2022-667ee398b1)
  • 591406 Siemens SIMATIC S7-1500 CPU GNU/Linux subsystem Multiple Vulnerabilities (SSB-439005, ICSA-22-104-13)
  • 752893 SUSE Enterprise Linux Security Update for binutils (SUSE-SU-2022:4146-1)
  • 752941 SUSE Enterprise Linux Security Update for binutils (SUSE-SU-2022:4277-1)
  • 941376 AlmaLinux Security Update for gdb (ALSA-2023:6372)

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