Description
In HylaFAX+ through 7.0.2 and HylaFAX Enterprise, the faxsetup utility calls chown on files in user-owned directories. By winning a race, a local attacker could use this to escalate his privileges to root.
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 | hylafax | 3:6.0.7-3.1 | — |
| Debian 13 | hylafax | 3:6.0.7-3.1 | — |
| Debian 12 | hylafax | 3:6.0.7-3.1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | hylafax | No fix yet | — |
| Ubuntu 26.04 LTS | hylafax | No fix yet | — |
| Ubuntu 25.10 | hylafax | No fix yet | — |
| Ubuntu 24.04 LTS | hylafax | No fix yet | — |
| Ubuntu 22.04 LTS | hylafax | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | hylafax | No fix yet | — |
| Ubuntu 18.04 LTS | hylafax | No fix yet | — |
| Ubuntu 16.04 LTS | hylafax | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SUSE Package Hub 15 SP2 | hylafax+ | 7.0.3-bp152.3.4.1 | openSUSE-SU-2020:1438-1 |
| SUSE Package Hub 15 SP1 | hylafax+ | 7.0.3-bp151.6.4.1 | openSUSE-SU-2020:1231-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | hylafax+ | 7.0.3-5.1 | openSUSE-SU-2024:10852-1 |
| openSUSE Leap 15.2 | hylafax+ | 7.0.3-lp152.3.6.1 | openSUSE-SU-2020:1209-1 |
| openSUSE Leap 15.1 | hylafax+ | 7.0.3-lp151.4.6.1 | openSUSE-SU-2020:1210-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | hylafaxplus | 7.0.2-r2 | — |
| Alpine v3.23 | hylafaxplus | 7.0.2-r2 | — |
| Alpine v3.22 | hylafaxplus | 7.0.2-r2 | — |
| Alpine v3.21 | hylafaxplus | 7.0.2-r2 | — |
| Alpine v3.20 | hylafaxplus | 7.0.2-r2 | — |
Show 11 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | hylafaxplus | 7.0.2-r2 | — |
| Alpine v3.18 | hylafaxplus | 7.0.2-r2 | — |
| Alpine v3.17 | hylafaxplus | 7.0.2-r2 | — |
| Alpine v3.16 | hylafaxplus | 7.0.2-r2 | — |
| Alpine v3.15 | hylafaxplus | 7.0.2-r2 | — |
| Alpine v3.14 | hylafaxplus | 7.0.2-r2 | — |
| Alpine v3.13 | hylafaxplus | 7.0.2-r2 | — |
| Alpine v3.12 | hylafaxplus | 7.0.2-r2 | — |
| Alpine v3.11 | hylafaxplus | 7.0.1-r2 | — |
| Alpine v3.10 | hylafaxplus | 7.0.0-r4 | — |
| Alpine v3.9 | hylafaxplus | 7.0.0-r1 | — |
Advisories 5
- openSUSE-SU-2020:1438-1 Security update for hylafax+ SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:1209-1 Security update for hylafax+ SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10852-1 hylafax+-7.0.3-5.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:1210-1 Security update for hylafax+ SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:1231-1 Security update for hylafax+ SUSE / openSUSE Security Updates · May 7, 2025
References
- https://sourceforge.net/p/hylafax/HylaFAX+/2534/
- https://bugzilla.suse.com/show_bug.cgi?id=1173521
- GLSA-202007-06 vendor-advisory
- FEDORA-2020-8aa8793d25 vendor-advisory
- FEDORA-2020-01eb48bcce vendor-advisory
- openSUSE-SU-2020:1209 vendor-advisory
- openSUSE-SU-2020:1210 vendor-advisory
- openSUSE-SU-2020:1231 vendor-advisory
- openSUSE-SU-2020:1438 vendor-advisory