Description
A code execution vulnerability exists in the directory rehashing functionality of E2fsprogs e2fsck 1.45.4. A specially crafted ext4 directory can cause an out-of-bounds write on the stack, resulting in code execution. An attacker can corrupt a partition to trigger this vulnerability.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | E2fsprogs | 1.43.3 - 1.45.4 | — |
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 | e2fsprogs | 1.45.5-1 | — |
| Debian 13 | e2fsprogs | 1.45.5-1 | — |
| Debian 12 | e2fsprogs | 1.45.5-1 | — |
| Debian 9 | e2fsprogs | 1.43.4-2+deb9u2 | DLA-2290-1 |
| Debian 8 | e2fsprogs | 1.42.12-2+deb8u2 | DLA-2156-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | e2fsprogs | 1.44.1-1ubuntu1.3 | USN-4249-1 |
| Ubuntu 16.04 LTS | e2fsprogs | 1.42.13-1ubuntu1.2 | USN-4249-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 14.04 LTS | e2fsprogs | 1.42.9-3ubuntu1.3+esm2 | USN-4249-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | libss +5 | 1.45.4-3.el8 | RHSA-2020:1913 |
| RHEL 7 | libss +7 | 1.42.9-19.el7 | RHSA-2020:4011 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP1 | e2fsprogs | 1.43.8-4.17.1 | SUSE-SU-2020:0265-1 |
| SLES 15 | e2fsprogs | 1.43.8-4.17.1 | SUSE-SU-2020:0265-1 |
| SLES 12 SP5 | e2fsprogs | 1.43.8-3.11.1 | SUSE-SU-2020:0360-1 |
| SLES 12 SP4 | e2fsprogs | 1.43.8-3.11.1 | SUSE-SU-2020:0360-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP5 | e2fsprogs | 1.43.8-3.11.1 | SUSE-SU-2020:0360-1 |
| SLES for SAP 12 SP4 | e2fsprogs | 1.43.8-3.11.1 | SUSE-SU-2020:0360-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.1 | e2fsprogs | 1.43.8-lp151.5.12.1 | openSUSE-SU-2020:0166-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | e2fsprogs | 1.45.5-r0 | — |
| Alpine v3.23 | e2fsprogs | 1.45.5-r0 | — |
| Alpine v3.22 | e2fsprogs | 1.45.5-r0 | — |
| Alpine v3.21 | e2fsprogs | 1.45.5-r0 | — |
| Alpine v3.20 | e2fsprogs | 1.45.5-r0 | — |
Show 12 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | e2fsprogs | 1.45.5-r0 | — |
| Alpine v3.18 | e2fsprogs | 1.45.5-r0 | — |
| Alpine v3.17 | e2fsprogs | 1.45.5-r0 | — |
| Alpine v3.16 | e2fsprogs | 1.45.5-r0 | — |
| Alpine v3.15 | e2fsprogs | 1.45.5-r0 | — |
| Alpine v3.14 | e2fsprogs | 1.45.5-r0 | — |
| Alpine v3.13 | e2fsprogs | 1.45.5-r0 | — |
| Alpine v3.12 | e2fsprogs | 1.45.5-r0 | — |
| Alpine v3.11 | e2fsprogs | 1.45.5-r0 | — |
| Alpine v3.10 | e2fsprogs | 1.45.5-r0 | — |
| Alpine v3.9 | e2fsprogs | 1.44.5-r2 | — |
| Alpine v3.8 | e2fsprogs | 1.44.2-r2 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | libss +7 | 1.42.9-19.amzn2 | ALAS2-2020-1509 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | libss +7 | 1.42.9-19.el7 | ELSA-2020-4011 |
Advisories 12
- RHSA-2020:4011 Red Hat Security Advisory: e2fsprogs security and bug fix update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHSA-2020:1913 Red Hat Security Advisory: e2fsprogs security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- SSA-398330 SSA-398330: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP >= V3.1.0 and < V3.1.5 Siemens ProductCERT · Oct 13, 2026
- USN-4249-1 e2fsprogs vulnerability Ubuntu Security Notices (USN) · Jun 29, 2026
- DLA-2290-1 e2fsprogs - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2156-1 e2fsprogs - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2020:0265-1 Security update for e2fsprogs SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:0360-1 Security update for e2fsprogs SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:0166-1 Security update for e2fsprogs SUSE / openSUSE Security Updates · Feb 4, 2026
- ICSA-23-348-10 Siemens SIMATIC S7-1500 CISA ICS & IT advisories · Aug 12, 2025
- ALAS2-2020-1509 Moderate: e2fsprogs security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Oct 22, 2020
- ELSA-2020-4011 Moderate: e2fsprogs security and bug fix update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Oct 6, 2020
References
- FEDORA-2020-a724cc7926 vendor-advisory
- USN-4249-1 vendor-advisory
- FEDORA-2020-01ed02451f vendor-advisory
- openSUSE-SU-2020:0166 vendor-advisory
- [debian-lts-announce] 20200324 [SECURITY] [DLA 2156-1] e2fsprogs security update mailing-list
- [debian-lts-announce] 20200726 [SECURITY] [DLA 2290-1] e2fsprogs security update mailing-list
- https://talosintelligence.com/vulnerability_reports/TALOS-2019-0973
- https://security.netapp.com/advisory/ntap-20220506-0001/