# CVE-2021-3826: gdb: The GNU Debugger (GDB) allows users to debug programs written in various programming languages including C, C++, and...

CVE-2021-3826 is fixed in 7 products on 1 platform, first by DEBIAN-CVE-2021-3826, released September 1, 2022. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2021-3826
- Priority: High
- CVSS: 7.5 (Low)
- EPSS: 0.0150
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 1, 2022

## Description

The GNU Debugger (GDB) allows users to debug programs written in various programming languages including C, C++, and Fortran.   Security Fix(es):  * libiberty: Heap/stack buffer overflow in the dlang_lname function in d-demangle.c (CVE-2021-3826)  For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.  Additional Changes:  For detailed information on changes in this release, see the Red Hat Enterprise Linux 9.3 Release Notes linked from the References section.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | binutils Debian 12.15 (bookworm) | 2.37.50.20220121-1 | [DEBIAN-CVE-2021-3826](https://patchblox.com/security/data/fix/linux/debian-cve-2021-3826.md) | Sep 1, 2022 |
| Linux | binutils Debian 13.5 (trixie) | 2.37.50.20220121-1 | [DEBIAN-CVE-2021-3826](https://patchblox.com/security/data/fix/linux/debian-cve-2021-3826.md) | Sep 1, 2022 |
| Linux | binutils Debian 14 | 2.37.50.20220121-1 | [DEBIAN-CVE-2021-3826](https://patchblox.com/security/data/fix/linux/debian-cve-2021-3826.md) | Sep 1, 2022 |
| Linux | gdb RHEL 9 | 0:10.2-11.el9 | [RHSA-2023:6372](https://patchblox.com/security/data/fix/linux/rhsa-2023-6372.md) | Nov 7, 2023 |
| Linux | gdb almalinux 9 | 10.2-11.el9 | [ALSA-2023:6372](https://patchblox.com/security/data/fix/linux/alsa-2023-6372.md) | Nov 7, 2023 |
| Linux | gdb ol 9 | 0:10.2-11.0.1.el9 | [ELSA-2023-6372](https://patchblox.com/security/data/fix/linux/elsa-2023-6372.md) | Nov 11, 2023 |
| Linux | gdb-doc RHEL 9 | 0:10.2-11.el9 | [RHSA-2023:6372](https://patchblox.com/security/data/fix/linux/rhsa-2023-6372.md) | Nov 7, 2023 |
| Linux | gdb-doc almalinux 9 | 10.2-11.el9 | [ALSA-2023:6372](https://patchblox.com/security/data/fix/linux/alsa-2023-6372.md) | Nov 7, 2023 |
| Linux | gdb-doc ol 9 | 0:10.2-11.0.1.el9 | [ELSA-2023-6372](https://patchblox.com/security/data/fix/linux/elsa-2023-6372.md) | Nov 11, 2023 |
| Linux | gdb-gdbserver RHEL 9 | 0:10.2-11.el9 | [RHSA-2023:6372](https://patchblox.com/security/data/fix/linux/rhsa-2023-6372.md) | Nov 7, 2023 |
| Linux | gdb-gdbserver almalinux 9 | 10.2-11.el9 | [ALSA-2023:6372](https://patchblox.com/security/data/fix/linux/alsa-2023-6372.md) | Nov 7, 2023 |
| Linux | gdb-gdbserver ol 9 | 0:10.2-11.0.1.el9 | [ELSA-2023-6372](https://patchblox.com/security/data/fix/linux/elsa-2023-6372.md) | Nov 11, 2023 |
| Linux | gdb-headless RHEL 9 | 0:10.2-11.el9 | [RHSA-2023:6372](https://patchblox.com/security/data/fix/linux/rhsa-2023-6372.md) | Nov 7, 2023 |
| Linux | gdb-headless almalinux 9 | 10.2-11.el9 | [ALSA-2023:6372](https://patchblox.com/security/data/fix/linux/alsa-2023-6372.md) | Nov 7, 2023 |
| Linux | gdb-headless ol 9 | 0:10.2-11.0.1.el9 | [ELSA-2023-6372](https://patchblox.com/security/data/fix/linux/elsa-2023-6372.md) | Nov 11, 2023 |
| Linux | gdb-minimal RHEL 9 | 0:10.2-11.el9 | [RHSA-2023:6372](https://patchblox.com/security/data/fix/linux/rhsa-2023-6372.md) | Nov 7, 2023 |
| Linux | gdb-minimal almalinux 9 | 10.2-11.el9 | [ALSA-2023:6372](https://patchblox.com/security/data/fix/linux/alsa-2023-6372.md) | Nov 7, 2023 |
| Linux | gdb-minimal ol 9 | 0:10.2-11.0.1.el9 | [ELSA-2023-6372](https://patchblox.com/security/data/fix/linux/elsa-2023-6372.md) | Nov 11, 2023 |
| Linux | libiberty Debian 12.15 (bookworm) | 20220713-1 | [DEBIAN-CVE-2021-3826](https://patchblox.com/security/data/fix/linux/debian-cve-2021-3826.md) | Sep 1, 2022 |
| Linux | libiberty Debian 13.5 (trixie) | 20220713-1 | [DEBIAN-CVE-2021-3826](https://patchblox.com/security/data/fix/linux/debian-cve-2021-3826.md) | Sep 1, 2022 |
| Linux | libiberty Debian 14 | 20220713-1 | [DEBIAN-CVE-2021-3826](https://patchblox.com/security/data/fix/linux/debian-cve-2021-3826.md) | Sep 1, 2022 |

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