Description
realloc_symlink in rock.c in GNU libcdio before 1.0.0 allows remote attackers to cause a denial of service (NULL Pointer Dereference) via a crafted iso file.
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 | libcdio | 1.0.0-1 | — |
| Debian 13 | libcdio | 1.0.0-1 | — |
| Debian 12 | libcdio | 1.0.0-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 16.04 LTS | libcdio | 0.83-4.2ubuntu1+esm1 | USN-5558-1 |
| Ubuntu Pro 14.04 LTS | libcdio | 0.83-4.1ubuntu1+esm1 | USN-5558-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | libcdio +1 | 0.92-3.el7 | RHSA-2018:3246 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 | libcdio | 0.94-6.3.1 | SUSE-SU-2018:2236-1 |
| SLES 12 SP5 | libcdio | 0.90-6.6.5 | SUSE-SU-2020:3023-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP5 | libcdio | 0.90-6.6.5 | SUSE-SU-2020:3023-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | libcdio | 0.80-8.3.5 | SUSE-SU-2020:14498-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | libcdio +1 | 0.92-3.amzn2 | ALAS2-2019-1151 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | libcdio +1 | 0.92-3.el7 | ELSA-2018-3246 |
Advisories 7
- USN-5558-1 libcdio vulnerabilities Ubuntu Security Notices (USN) · Jun 29, 2026
- RHSA-2018:3246 Red Hat Security Advisory: libcdio security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- SUSE-SU-2020:14498-1 Security update for libcdio SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:2236-1 Security update for libcdio SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:3023-1 Security update for libcdio SUSE / openSUSE Security Updates · Feb 4, 2026
- ALAS2-2019-1151 Low: libcdio security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Jan 25, 2019
- ELSA-2018-3246 Low: libcdio security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Nov 5, 2018
References
- https://savannah.gnu.org/bugs/?52264
- http://ftp.gnu.org/gnu/libcdio/libcdio-1.0.0.tar.gz
- RHSA-2018:3246 vendor-advisory
- 103202 vdb-entry