Description
The get_rock_ridge_filename function in fs/isofs/rock.c in the Linux kernel before 4.5.5 mishandles NM (aka alternate name) entries containing \0 characters, which allows local users to obtain sensitive information from kernel memory or possibly have unspecified other impact via a crafted isofs filesystem.
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 | 4.5.4-1 | — |
| Debian 13 | linux | 4.5.4-1 | — |
| Debian 12 | linux | 4.5.4-1 | — |
| Debian 8 | linux | 3.16.7-ckt25-2+deb8u2 | DSA-3607-1 |
| Debian 7 | linux | 3.2.81-1 | DLA-516-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | linux-riscv +6 | No fix yet | — |
| Ubuntu 22.04 LTS | linux-riscv +2 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-gke +4 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp +3 | No fix yet | — |
| Ubuntu 16.04 LTS | linux | 4.4.0-28.47 | USN-3016-1 |
| Ubuntu 16.04 LTS | linux-raspi2 | 4.4.0-1016.22 | USN-3016-2 |
| Ubuntu 16.04 LTS | linux-snapdragon | 4.4.0-1019.22 | USN-3016-3 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | linux | 3.13.0-91.138 | USN-3018-1 |
| Ubuntu 14.04 LTS | linux-lts-utopic | 3.16.0-76.98~14.04.1 | USN-3019-1 |
| Ubuntu 14.04 LTS | linux-lts-vivid | 3.19.0-64.72~14.04.1 | USN-3020-1 |
| Ubuntu 14.04 LTS | linux-lts-wily | 4.2.0-41.48~14.04.1 | USN-3017-3 |
| Ubuntu 14.04 LTS | linux-lts-xenial | 4.4.0-28.47~14.04.1 | USN-3016-4 |
| Ubuntu Pro 20.04 LTS | linux-azure-fde-5.15 | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | kernel-rt +10 | 3.10.0-957.rt56.910.el7 | RHSA-2018:3096 |
| RHEL 7 | perf +18 | 3.10.0-957.el7 | RHSA-2018:3083 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 11 SP4 | kernel-docs | 3.0.101-77.2 | SUSE-SU-2016:1672-1 |
| SLES 11 SP4 | kernel-ec2 +7 | 3.0.101-77.1 | SUSE-SU-2016:1672-1 |
| SLES 11 SP3 | kernel-ec2 +7 | 3.0.101-0.47.86.1 | SUSE-SU-2016:2245-1 |
| SLES 11 SP2 | kernel-ec2 +6 | 3.0.101-0.7.53.1 | SUSE-SU-2017:0333-1 |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 11 SP4 | kernel-ec2 +7 | 3.0.101-77.1 | SUSE-SU-2016:1672-1 |
| SLE Real Time 11 SP4 | kernel-rt +3 | 3.0.101.rt130-57.1 | SUSE-SU-2016:1985-1 |
| SUSE OpenStack Cloud 5 | kernel-ec2 +6 | 3.0.101-0.47.86.1 | SUSE-SU-2016:2245-1 |
| SUSE Manager Proxy 2.1 | kernel-ec2 +6 | 3.0.101-0.47.86.1 | SUSE-SU-2016:2245-1 |
| SUSE Manager 2.1 | kernel-ec2 +6 | 3.0.101-0.47.86.1 | SUSE-SU-2016:2245-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | kernel-ec2 +6 | 3.0.101-0.47.86.1 | SUSE-SU-2016:2245-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | dtrace-modules-4.1.12-61.1.6.el6uek | 0.5.3-2.el6 | ELSA-2016-3596 |
| Oracle Linux 7 | dtrace-modules-4.1.12-61.1.6.el7uek | 0.5.3-2.el7 | ELSA-2016-3596 |
| Oracle Linux 7 | kernel-uek +5 | 4.1.12-61.1.6.el7uek | ELSA-2016-3596 |
| Oracle Linux 7 | perf +12 | 3.10.0-957.el7 | ELSA-2018-3083 |
Advisories 18
- RHSA-2018:3083 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jul 8, 2026
- RHSA-2018:3096 Red Hat Security Advisory: kernel-rt security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jul 8, 2026
- USN-3016-1 linux vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- USN-3018-1 linux vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DLA-516-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-3607-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-3019-1 linux-lts-utopic vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- USN-3020-1 linux-lts-vivid vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- USN-3016-2 linux-raspi2 vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- USN-3016-3 linux-snapdragon vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- USN-3016-4 linux-lts-xenial vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- USN-3017-3 linux-lts-wily vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- SUSE-SU-2016:1672-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:0333-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:1985-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:2245-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- ELSA-2018-3083 Important: kernel security, bug fix, and enhancement update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Nov 5, 2018
- ELSA-2016-3596 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Aug 26, 2016
References
- RHSA-2018:3083 vendor-advisory
- https://github.com/torvalds/linux/commit/99d825822eade8d827a1817357cbf3f889a552d6
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
- USN-3017-1 vendor-advisory
- SUSE-SU-2016:1985 vendor-advisory
- USN-3017-3 vendor-advisory
- USN-3018-2 vendor-advisory
- USN-3021-2 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1337528
- USN-3017-2 vendor-advisory
- USN-3019-1 vendor-advisory
- DSA-3607 vendor-advisory
- USN-3016-2 vendor-advisory
- USN-3016-1 vendor-advisory
- SUSE-SU-2016:1672 vendor-advisory
- USN-3021-1 vendor-advisory
- [oss-security] 20160518 Re: CVE Request: Linux: information leak in Rock Ridge Extensions to iso9660 -- fs/isofs/rock.c mailing-list
- USN-3018-1 vendor-advisory
- [oss-security] 20160518 CVE Request: Linux: information leak in Rock Ridge Extensions to iso9660 -- fs/isofs/rock.c mailing-list
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.5
- http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html
- 90730 vdb-entry
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=99d825822eade8d827a1817357cbf3f889a552d6
- USN-3016-3 vendor-advisory
- USN-3016-4 vendor-advisory
- RHSA-2018:3096 vendor-advisory
- USN-3020-1 vendor-advisory