Description
Integer overflow in the LZO algorithm variant in Oberhumer liblzo2 and lzo-2 before 2.07 on 32-bit platforms might allow remote attackers to execute arbitrary code via a crafted Literal Run.
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 | busybox | 1:1.22.0-10 | — |
| Debian 14 | lzo2 | 2.08-1 | — |
| Debian 13 | busybox | 1:1.22.0-10 | — |
| Debian 13 | lzo2 | 2.08-1 | — |
| Debian 12 | busybox | 1:1.22.0-10 | — |
| Debian 12 | lzo2 | 2.08-1 | — |
| Debian 7 | lzo2 | 2.06-1+deb7u1 | DSA-2995-1 |
| Debian 6.0 | lzo2 | 2.03-2+deb6u1 | DLA-35-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | grub2 | 2.04-1ubuntu26.8 | — |
| Ubuntu 20.04 LTS | grub2-signed | 1.142.10 | — |
| Ubuntu 20.04 LTS | grub2-unsigned | 2.04-1ubuntu47.4 | — |
| Ubuntu 14.04 LTS | krfb | 4:4.13.0-0ubuntu1.1 | — |
| Ubuntu 14.04 LTS | lzo2 | 2.06-1.2ubuntu1.1 | USN-2300-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | lzo +2 | 2.06-6.el7_0.2 | RHSA-2014:0861 |
| RHEL 6 | lzo +2 | 2.03-3.1.el6_5.1 | RHSA-2014:0861 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | icecream | 1.3.1-3.7 | openSUSE-SU-2024:10854-1 |
| openSUSE Tumbleweed | nfdump | 1.6.23-1.3 | openSUSE-SU-2024:11089-1 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | valgrind | No fix yet | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | lzo +2 | 2.06-6.el7_0.2 | ELSA-2014-0861 |
Advisories 7
- RHSA-2014:0861 Red Hat Security Advisory: lzo security update Red Hat Security Advisories (RHSA) · Jul 21, 2026
- USN-2300-1 lzo2 vulnerability Ubuntu Security Notices (USN) · Apr 27, 2026
- DLA-35-1 lzo2 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-2995-1 lzo2 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10854-1 icecream-1.3.1-3.7 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:11089-1 nfdump-1.6.23-1.3 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- ELSA-2014-0861 Moderate: lzo security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Jul 9, 2014