libarchive: An improper link resolution flaw while extracting an archive can lead to changing the access control list (ACL) of th...
CVE-2021-23177 is fixed in 5 products on 1 platform, first by libarchive-tools 3.4.0-2ubuntu1.1, released December 23, 2021. It is not reported as exploited. Patch Radar priority: High.
An improper link resolution flaw while extracting an archive can lead to changing the access control list (ACL) of the target of the link. An attacker may provide a malicious archive to a victim user, who would trigger this flaw when trying to extract the archive. A local attacker may use this flaw to change the ACL of a file on the system and gain more privileges.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| bsdtar · RHEL 8 | 0:3.3.3-3.el8_5 | RHSA-2022:0892 | Mar 15, 2022 |
| bsdtar · almalinux 8 | 3.3.3-3.el8_5 | ALSA-2022:0892 | Mar 15, 2022 |
| bsdtar · ol 8 | 0:3.3.3-3.el8_5 | ELSA-2022-0892 | Mar 16, 2022 |
| libarchive · Debian 12.15 (bookworm) | 3.5.2-1 | DEBIAN-CVE-2021-23177 | Aug 23, 2022 |
| libarchive · Debian 13.5 (trixie) | 3.5.2-1 | DEBIAN-CVE-2021-23177 | Aug 23, 2022 |
| libarchive · Debian 14 | 3.5.2-1 | DEBIAN-CVE-2021-23177 | Aug 23, 2022 |
| libarchive · RHEL 8 | 0:3.3.3-3.el8_5 | RHSA-2022:0892 | Mar 15, 2022 |
| libarchive · almalinux 8 | 3.3.3-3.el8_5 | ALSA-2022:0892 | Mar 15, 2022 |
| libarchive · ol 8 | 0:3.3.3-3.el8_5 | ELSA-2022-0892 | Mar 16, 2022 |
| libarchive · rocky 8 | 0:3.3.3-3.el8_5 | RLSA-2022:0892 | Mar 15, 2022 |
| libarchive-devel · RHEL 8 | 0:3.3.3-3.el8_5 | RHSA-2022:0892 | Mar 15, 2022 |
| libarchive-devel · almalinux 8 | 3.3.3-3.el8_5 | ALSA-2022:0892 | Mar 15, 2022 |
| libarchive-devel · ol 8 | 0:3.3.3-3.el8_5 | ELSA-2022-0892 | Mar 16, 2022 |
| libarchive-tools · Ubuntu 20.04 LTS (focal) | 3.4.0-2ubuntu1.1 | libarchive-tools 3.4.0-2ubuntu1.1 | Dec 23, 2021 |
| libarchive13 · Ubuntu 20.04 LTS (focal) | 3.4.0-2ubuntu1.1 | libarchive13 3.4.0-2ubuntu1.1 | Dec 23, 2021 |
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