Medium severity6.5NVD Advisory· Published Sep 1, 2022· Updated Jun 17, 2026
CVE-2021-3826
CVE-2021-3826
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
84- osv-coords82 versionspkg:rpm/almalinux/gdbpkg:rpm/almalinux/gdb-docpkg:rpm/almalinux/gdb-gdbserverpkg:rpm/almalinux/gdb-headlesspkg:rpm/almalinux/gdb-minimalpkg:rpm/opensuse/binutils&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/binutils&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/binutils&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/cross-aarch64-binutils&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/cross-aarch64-binutils&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/cross-arm-binutils&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/cross-arm-binutils&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/cross-avr-binutils&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/cross-avr-binutils&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/cross-epiphany-binutils&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/cross-epiphany-binutils&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/cross-hppa64-binutils&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/cross-hppa64-binutils&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/cross-hppa-binutils&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/cross-hppa-binutils&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/cross-i386-binutils&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/cross-i386-binutils&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/cross-ia64-binutils&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/cross-ia64-binutils&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/cross-m68k-binutils&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/cross-m68k-binutils&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/cross-mips-binutils&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/cross-mips-binutils&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/cross-ppc64-binutils&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/cross-ppc64-binutils&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/cross-ppc64le-binutils&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/cross-ppc64le-binutils&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/cross-ppc-binutils&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/cross-ppc-binutils&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/cross-riscv64-binutils&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/cross-riscv64-binutils&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/cross-rx-binutils&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/cross-rx-binutils&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/cross-s390-binutils&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/cross-s390-binutils&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/cross-s390x-binutils&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/cross-s390x-binutils&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/cross-sparc64-binutils&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/cross-sparc64-binutils&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/cross-sparc-binutils&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/cross-sparc-binutils&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/cross-spu-binutils&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/cross-spu-binutils&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/cross-x86_64-binutils&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/cross-x86_64-binutils&distro=openSUSE%20Leap%2015.4pkg:rpm/suse/binutils&distro=SUSE%20Enterprise%20Storage%206pkg:rpm/suse/binutils&distro=SUSE%20Enterprise%20Storage%207pkg:rpm/suse/binutils&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-ESPOSpkg:rpm/suse/binutils&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSSpkg:rpm/suse/binutils&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-ESPOSpkg:rpm/suse/binutils&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-LTSSpkg:rpm/suse/binutils&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3pkg:rpm/suse/binutils&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP4pkg:rpm/suse/binutils&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP3pkg:rpm/suse/binutils&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP4pkg:rpm/suse/binutils&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP3pkg:rpm/suse/binutils&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP4pkg:rpm/suse/binutils&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/binutils&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCLpkg:rpm/suse/binutils&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSSpkg:rpm/suse/binutils&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/binutils&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-BCLpkg:rpm/suse/binutils&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSSpkg:rpm/suse/binutils&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-BCLpkg:rpm/suse/binutils&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-LTSSpkg:rpm/suse/binutils&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/binutils&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/binutils&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1pkg:rpm/suse/binutils&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP2pkg:rpm/suse/binutils&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5pkg:rpm/suse/binutils&distro=SUSE%20Manager%20Proxy%204.1pkg:rpm/suse/binutils&distro=SUSE%20Manager%20Retail%20Branch%20Server%204.1pkg:rpm/suse/binutils&distro=SUSE%20Manager%20Server%204.1pkg:rpm/suse/binutils&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/binutils&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209pkg:rpm/suse/cross-ppc-binutils&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5pkg:rpm/suse/cross-spu-binutils&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5
< 10.2-11.el9+ 81 more
- (no CPE)range: < 10.2-11.el9
- (no CPE)range: < 10.2-11.el9
- (no CPE)range: < 10.2-11.el9
- (no CPE)range: < 10.2-11.el9
- (no CPE)range: < 10.2-11.el9
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-2.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-9.50.1
- (no CPE)range: < 2.39-9.50.1
- (no CPE)range: < 2.39-9.50.1
- (no CPE)range: < 2.39-9.50.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-9.50.1
- (no CPE)range: < 2.39-9.50.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-9.50.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-150100.7.40.1
- (no CPE)range: < 2.39-9.50.1
- (no CPE)range: < 2.39-9.50.1
- (no CPE)range: < 2.39-9.50.1
- (no CPE)range: < 2.39-9.50.1
Patches
Vulnerability mechanics
References
7- gcc.gnu.org/pipermail/gcc-patches/2021-September/579987nvdMailing ListPatchVendor Advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4MYLS3VR4OPL5ECRWOR4ZHMGXUSCJFZY/nvdMailing ListThird Party Advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6AKZ2DTS3ATVN5PANNVLKLE5OP4OF25Q/nvdMailing ListThird Party Advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7MTEHT3G6YKJ7F7MSGWYSI4UM3XBAYXZ/nvdMailing ListThird Party Advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AXFC74WRZ2Q7F2TSUKPYNIL7ZPBWYI6L/nvdMailing ListThird Party Advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H424YXGW7OKXS2NCAP35OP6Y4P4AW6VG/nvdMailing ListThird Party Advisory
- gcc.gnu.org/git/nvdBroken Link
News mentions
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