Description
repodata_schema2id in repodata.c in libsolv before 0.7.6 has a heap-based buffer over-read via a last schema whose length is less than the length of the input schema.
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 | libsolv | 0.6.36-2 | — |
| Debian 13 | libsolv | 0.6.36-2 | — |
| Debian 12 | libsolv | 0.6.36-2 | — |
| Debian 8 | libsolv | 0.6.5-1+deb8u1 | DLA-2088-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | libsolv | 0.6.30-1ubuntu0.1~esm2 | USN-9076-1 |
| Ubuntu Pro 16.04 LTS | libsolv | 0.6.11-1.1ubuntu0.1~esm1 | USN-9076-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | libsolv +1 | 0.7.11-1.el8 | RHSA-2020:4508 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP5 | libsolv | 0.6.37-2.33.1 | SUSE-SU-2021:2180-1 |
| SLES 12 SP5 | libzypp | 16.21.4-2.51.1 | SUSE-SU-2021:2180-1 |
| SLES 12 SP4 | libsolv | 0.6.37-2.33.1 | SUSE-SU-2021:2180-1 |
| SLES 12 SP4 | libzypp | 16.21.4-2.51.1 | SUSE-SU-2021:2180-1 |
| SLES 12 SP3 | libsolv | 0.6.37-2.33.1 | SUSE-SU-2021:2180-1 |
| SLES 12 SP3 | libzypp | 16.21.4-2.51.1 | SUSE-SU-2021:2180-1 |
| SLES 12 SP2 | libsolv | 0.6.37-2.27.24.1 | SUSE-SU-2021:2145-1 |
| SLES 12 SP2 | libzypp | 16.21.4-27.75.1 | SUSE-SU-2021:2145-1 |
Show 8 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP5 | libsolv | 0.6.37-2.33.1 | SUSE-SU-2021:2180-1 |
| SLES for SAP 12 SP5 | libzypp | 16.21.4-2.51.1 | SUSE-SU-2021:2180-1 |
| SLES for SAP 12 SP4 | libsolv | 0.6.37-2.33.1 | SUSE-SU-2021:2180-1 |
| SLES for SAP 12 SP4 | libzypp | 16.21.4-2.51.1 | SUSE-SU-2021:2180-1 |
| SLES for SAP 12 SP3 | libsolv | 0.6.37-2.33.1 | SUSE-SU-2021:2180-1 |
| SLES for SAP 12 SP3 | libzypp | 16.21.4-2.51.1 | SUSE-SU-2021:2180-1 |
| SUSE OpenStack Cloud Crowbar 9 | libsolv | 0.6.37-2.33.1 | SUSE-SU-2021:2180-1 |
| SUSE OpenStack Cloud Crowbar 9 | libzypp | 16.21.4-2.51.1 | SUSE-SU-2021:2180-1 |
| SUSE OpenStack Cloud Crowbar 8 | libsolv | 0.6.37-2.33.1 | SUSE-SU-2021:2180-1 |
| SUSE OpenStack Cloud Crowbar 8 | libzypp | 16.21.4-2.51.1 | SUSE-SU-2021:2180-1 |
| SUSE OpenStack Cloud 9 | libsolv | 0.6.37-2.33.1 | SUSE-SU-2021:2180-1 |
| SUSE OpenStack Cloud 9 | libzypp | 16.21.4-2.51.1 | SUSE-SU-2021:2180-1 |
| SUSE OpenStack Cloud 8 | libsolv | 0.6.37-2.33.1 | SUSE-SU-2021:2180-1 |
| SUSE OpenStack Cloud 8 | libzypp | 16.21.4-2.51.1 | SUSE-SU-2021:2180-1 |
| SUSE HPE Helion OpenStack 8 | libsolv | 0.6.37-2.33.1 | SUSE-SU-2021:2180-1 |
| SUSE HPE Helion OpenStack 8 | libzypp | 16.21.4-2.51.1 | SUSE-SU-2021:2180-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | libsolv +1 | 0.7.11-1.el8 | ELSA-2020-4508 |
Advisories 7
- USN-9076-1 libsolv vulnerability Ubuntu Security Notices (USN) · Nov 13, 2026
- WID-SEC-2025-0227 IBM QRadar SIEM: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 11, 2026
- DLA-2088-1 libsolv - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2021:2145-1 Security update for libsolv SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:2180-1 Security update for libsolv SUSE / openSUSE Security Updates · Feb 4, 2026
- RHSA-2020:4508 Red Hat Security Advisory: libsolv security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- ELSA-2020-4508 Moderate: libsolv security, bug fix, and enhancement update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Nov 10, 2020