| Name | CVE-2020-26932 |
| Description | debian/sympa.postinst for the Debian Sympa package before 6.2.40~dfsg-7 uses mode 4755 for sympa_newaliases-wrapper, whereas the intended permissions are mode 4750 (for access by the sympa group) |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-2401-1, DSA-4818-1 |
| Debian Bugs | 971904 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| sympa (PTS) | buster, buster (security) | 6.2.40~dfsg-1+deb10u1 | fixed |
| bullseye | 6.2.60~dfsg-4 | fixed |
| bookworm, sid, trixie | 6.2.70~dfsg-2 | fixed |
The information below is based on the following data on fixed versions.
Notes
Debian specific issue where sympa_newaliases-wrapper had loose permissions
(already suid root and word-executable) allowing to gain root privileges
without first to escalate to sympa user.
https://salsa.debian.org/sympa-team/sympa/-/merge_requests/1