CVE-2021-3826
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-3826
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-3826.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2021-3826
- Downstream
- Related
- Published
- 2022-09-01T21:15:08.843Z
- Modified
- 2025-11-14T12:16:01.087882Z
- 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
-
- https://gcc.gnu.org/git/?p=gcc.git%3Ba=commit%3Bh=5481040197402be6dfee265bd2ff5a4c88e30505
- https://gcc.gnu.org/pipermail/gcc-patches/2021-September/579987
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4MYLS3VR4OPL5ECRWOR4ZHMGXUSCJFZY/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6AKZ2DTS3ATVN5PANNVLKLE5OP4OF25Q/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7MTEHT3G6YKJ7F7MSGWYSI4UM3XBAYXZ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AXFC74WRZ2Q7F2TSUKPYNIL7ZPBWYI6L/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H424YXGW7OKXS2NCAP35OP6Y4P4AW6VG/
Affected packages
Git / github.com/gcc-mirror/gcc
Affected ranges
- Type
- GIT
- Repo
- https://github.com/gcc-mirror/gcc
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedLast affected
Affected versions
Other
basepoints/gcc-0
basepoints/gcc-10
basepoints/gcc-11
basepoints/gcc-5
basepoints/gcc-6
basepoints/gcc-7
basepoints/gcc-8
basepoints/gcc-9
misc/cutover-cvs2svn
misc/cutover-egcs-0
misc/cutover-egcs-1
misc/cutover-git
misc/first-auto-changelog
releases/gcc-11.*
releases/gcc-11.1.0
releases/gcc-11.2.0