Description
The d_print_comp function in cp-demangle.c in libiberty allows remote attackers to cause a denial of service (segmentation fault and crash) via a crafted binary, which triggers infinite recursion and a buffer overflow, related to a node having "itself as ancestor more than once."
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | binutils | 2.28-3 | — |
| Debian 14 | libiberty | 20170627-1 | — |
| Debian 13 | binutils | 2.28-3 | — |
| Debian 13 | libiberty | 20170627-1 | — |
| Debian 12 | binutils | 2.28-3 | — |
| Debian 12 | libiberty | 20170627-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | gcc-h8300-hms +1 | No fix yet | — |
| Ubuntu 26.04 LTS | gcc-h8300-hms +1 | No fix yet | — |
| Ubuntu 25.10 | gcc-h8300-hms +1 | No fix yet | — |
| Ubuntu 24.04 LTS | gcc-h8300-hms +1 | No fix yet | — |
| Ubuntu 22.04 LTS | nescc +2 | No fix yet | — |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | nescc +2 | No fix yet | — |
| Ubuntu 18.04 LTS | sdcc +4 | No fix yet | — |
| Ubuntu 16.04 LTS | gdb | 7.11.1-0ubuntu1~16.5 | USN-3367-1 |
| Ubuntu 16.04 LTS | ht +6 | No fix yet | — |
| Ubuntu 16.04 LTS | libiberty | 20160215-1ubuntu0.2 | USN-3368-1 |
| Ubuntu 16.04 LTS | valgrind | 1:3.11.0-1ubuntu4.2 | USN-3337-1 |
| Ubuntu 14.04 LTS | gdb | 7.7.1-0ubuntu5~14.04.3 | USN-3367-1 |
| Ubuntu 14.04 LTS | libiberty | 20131116-1ubuntu0.2 | USN-3368-1 |
| Ubuntu 14.04 LTS | valgrind | 1:3.10.1-1ubuntu3~14.5 | USN-3337-1 |
| Ubuntu Pro 16.04 LTS | binutils | 2.26.1-1ubuntu1~16.04.8+esm1 | USN-4336-2 |
| Ubuntu Pro 14.04 LTS | binutils | No fix yet | — |
Advisories 4
- USN-4336-2 binutils vulnerabilities Ubuntu Security Notices (USN) · Jun 25, 2026
- USN-3367-1 gdb vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- USN-3368-1 libiberty vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- USN-3337-1 valgrind vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026