Description
Multiple integer overflows in the lzo1x_decompress_safe function in lib/lzo/lzo1x_decompress_safe.c in the LZO decompressor in the Linux kernel before 3.15.2 allow context-dependent attackers to cause a denial of service (memory corruption) via a crafted Literal Run. NOTE: the author of the LZO algorithms says "the Linux kernel is *not* affected; media hype.
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 | linux | 3.14.9-1 | — |
| Debian 13 | linux | 3.14.9-1 | — |
| Debian 12 | linux | 3.14.9-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | linux | 3.13.0-40.69 | USN-2420-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | perf +16 | 2.6.32-504.el6 | RHSA-2014:1392 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6.5 EUS | perf +16 | 2.6.32-431.46.2.el6 | RHSA-2015:0062 |
Advisories 3
- RHSA-2015:0062 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2014:1392 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- USN-2420-1 linux vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
References
- https://www.securitymouse.com/lms-2014-06-16-2
- SUSE-SU-2015:0736 vendor-advisory
- USN-2418-1 vendor-advisory
- RHSA-2015:0062 vendor-advisory
- https://github.com/torvalds/linux/commit/206a81c18401c0cde6e579164f752c4b147324ce
- https://bugzilla.redhat.com/show_bug.cgi?id=1113899
- USN-2416-1 vendor-advisory
- USN-2417-1 vendor-advisory
- 68214 vdb-entry
- USN-2419-1 vendor-advisory
- [oss-security] 20140626 LMS-2014-06-16-2: Linux Kernel LZO mailing-list
- SUSE-SU-2015:0481 vendor-advisory
- http://www.oberhumer.com/opensource/lzo/
- openSUSE-SU-2015:0566 vendor-advisory
- 60174 third-party-advisory
- USN-2421-1 vendor-advisory
- USN-2420-1 vendor-advisory
- http://blog.securitymouse.com/2014/06/raising-lazarus-20-year-old-bug-that.html
- 62633 third-party-advisory
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2
- 60011 third-party-advisory
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=206a81c18401c0cde6e579164f752c4b147324ce