CLSA-2026-1777368104
See a problem?- Import Source
- https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1777368104.json
- JSON Data
- https://api.osv.dev/v1/vulns/CLSA-2026-1777368104
- Upstream
- Published
- 2026-04-28T09:21:49Z
- Modified
- 2026-06-04T09:47:37.756361823Z
- Summary
- Fix CVE(s): CVE-2023-39810
- Details
-
- SECURITY UPDATE: directory traversal in cpio extraction
- debian/patches/CVE-2023-39810.patch: add FEATUREPATHTRAVERSALPROTECTION config option, call stripunsafeprefix() in dataextract_all.c to prevent path traversal via ../ in archive filenames. Covers cpio, ar, rpm.
- Enable CONFIGFEATUREPATHTRAVERSALPROTECTION=y in all build configs.
- debian/patches/CVE-2023-39810.patch: replace
echo -ewithprintfin the new cpio path-traversal testcase so it is portable to dash (the Ubuntu /bin/sh). - debian/testsuite-linux.diff: skip the pre-existing "cpio uses by default uid/gid" test, which is fragile in the pbuilder chroot (id -u returns 0 but source files retain uid=1000 from the build worker, causing a spurious mismatch).
- debian/patches/CVE-2023-39810.patch: include the "1 blocks" summary line that busybox cpio -vi emits (to stderr, merged via 2>&1) at end-of-archive in the expected output of the new path-traversal testcase; the functional check (file not written, exit 0) already passed but the string-match failed because 1.30.1 always prints "N blocks", matching the pattern used by other cpio tests in testsuite/cpio.tests.
- debian/testsuite-linux.diff: skip the pre-existing hostname-d-works test when the pbuilder chroot cannot resolve its own hostname via DNS (no /etc/hosts entry for the build host).
- CVE-2023-39810
- SECURITY UPDATE: directory traversal in cpio extraction
- References