Description
list_item_verbose in tar/util.c in libarchive through 3.7.7 does not check an strftime return value, which can lead to a denial of service or unspecified other impact via a crafted TAR archive that is read with a verbose value of 2. For example, the 100-byte buffer may not be sufficient for a custom locale.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| libarchive | libarchive | ≤ 3.7.7 | — |
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 | libarchive | 3.8.4-1 | — |
| Debian 13 | libarchive | No fix yet | — |
| Debian 12 | libarchive | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 25.10 | libarchive | 3.7.7-0ubuntu2.1 | — |
| Ubuntu 24.04 LTS | libarchive | 3.7.2-2ubuntu0.4 | USN-7454-1 |
| Ubuntu 22.04 LTS | libarchive | 3.6.0-1ubuntu1.4 | USN-7454-1 |
| Ubuntu 20.04 LTS | libarchive | 3.4.0-2ubuntu1.5 | USN-7454-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | libarchive | 3.2.2-3.1ubuntu0.7+esm2 | — |
| Ubuntu Pro 16.04 LTS | libarchive | 3.1.2-11ubuntu0.16.04.8+esm2 | — |
| Ubuntu Pro 14.04 LTS | libarchive | 3.1.2-7ubuntu2.8+esm4 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | bsdtar +2 | 3.7.7-3.el10_0 | RHSA-2025:9420 |
| RHEL 9 | bsdtar +2 | 3.5.3-5.el9_6 | RHSA-2025:9431 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9.4 E4S | bsdtar +2 | 3.5.3-5.el9_4.1 | RHSA-2026:24383 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | bsdtar +2 | 3.7.7-3.el10_0 | ALSA-2025:9420 |
| AlmaLinux 9 | bsdtar +2 | 3.5.3-5.el9_6 | ALSA-2025:9431 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | libarchive | 3.7.7-3.el10_0 | RLSA-2025:9420 |
| Rocky Linux 9 | libarchive | 3.5.3-5.el9_6 | RLSA-2025:9431 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP6 | libarchive | 3.7.2-150600.3.12.1 | SUSE-SU-2025:0985-1 |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLE Micro 6.1 | libarchive | 3.7.4-slfo.1.1_2.1 | SUSE-SU-2025:20257-1 |
| SLE Micro 5.5 | libarchive | 3.5.1-150400.3.18.1 | SUSE-SU-2025:0986-1 |
| SLE Micro 5.4 | libarchive | 3.5.1-150400.3.18.1 | SUSE-SU-2025:0986-1 |
| SLE Micro 5.3 | libarchive | 3.5.1-150400.3.18.1 | SUSE-SU-2025:0986-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | libarchive | 3.7.7-3.1 | openSUSE-SU-2025:14882-1 |
| openSUSE Leap 15.6 | libarchive | 3.7.2-150600.3.12.1 | SUSE-SU-2025:0985-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | libarchive | 3.7.9-r0 | — |
| Alpine v3.23 | libarchive | 3.7.9-r0 | — |
| Alpine v3.22 | libarchive | 3.7.9-r0 | — |
| Alpine v3.21 | libarchive | 3.7.9-r0 | — |
| Alpine v3.20 | libarchive | 3.7.9-r0 | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | libarchive | 3.7.9-r0 | — |
| Alpine v3.18 | libarchive | 3.7.9-r0 | — |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | libarchive | 3.7.7-2 | — |
| Azure Linux 2 (CBL-Mariner) | libarchive | 3.6.1-5 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 10 | bsdtar +2 | 3.7.7-3.el10_0 | ELSA-2025-9420 |
| Oracle Linux 9 | bsdtar +2 | 3.5.3-5.el9_6 | ELSA-2025-9431 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | libarchive-dev | 3.7.7-r2 | — |
Advisories 18
- ALSA-2025:9420 Moderate: libarchive security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2025:9431 Moderate: libarchive security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2026:24383 Red Hat Security Advisory: libarchive security update Red Hat Security Advisories (RHSA) · Aug 22, 2026
- RHSA-2025:9431 Red Hat Security Advisory: libarchive security update Red Hat Security Advisories (RHSA) · Aug 22, 2026
- RHSA-2025:9420 Red Hat Security Advisory: libarchive security update Red Hat Security Advisories (RHSA) · Aug 22, 2026
- WID-SEC-2025-0469 libarchive: Schwachstelle ermöglicht Denial of Service und weitere nicht spezifizierte Angriffe BSI CERT-Bund (WID) · Jun 8, 2026
- USN-7454-1 libarchive vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- SUSE-SU-2025:20257-1 Security update for libarchive SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:0985-1 Security update for libarchive SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:0986-1 Security update for libarchive SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2025:14882-1 bsdtar-3.7.7-3.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2025-2361 Oracle Communications: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 17, 2025
- WID-SEC-2025-1850 Xerox FreeFlow Print Server: Mehrere Schwachstellen ermöglichen nicht spezifizierten Angriff BSI CERT-Bund (WID) · Nov 17, 2025
- NCSC-2025-0330 Kwetsbaarheden verholpen in Oracle Communications producten NCSC-NL (Netherlands) · Oct 23, 2025
- RLSA-2025:9431 Moderate: libarchive security update Rocky Linux Security Advisories · Oct 7, 2025
- RLSA-2025:9420 Moderate: libarchive security update Rocky Linux Security Advisories · Oct 3, 2025
- ELSA-2025-9420 Moderate: libarchive security update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Jun 27, 2025
- ELSA-2025-9431 Moderate: libarchive security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Jun 24, 2025