Description
Buffer overflow in the rc_mksid function in plugins/radius/util.c in Paul's PPP Package (ppp) 2.4.6 and earlier, when the PID for pppd is greater than 65535, allows remote attackers to cause a denial of service (crash) via a start accounting message to the RADIUS server.
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 | ppp | 2.4.6-3.1 | — |
| Debian 13 | ppp | 2.4.6-3.1 | — |
| Debian 12 | ppp | 2.4.6-3.1 | — |
| Debian 7 | ppp | 2.4.5-5.1+deb7u2 | DSA-3228-1 |
| Debian 6.0 | ppp | 2.4.5-4+deb6u2 | DLA-205-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | ppp | 2.4.5-5.1ubuntu2.2 | USN-2595-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP2 | ppp | 2.4.7-3.4 | SUSE-SU-2017:0474-1 |
| SLES 12 SP1 | ppp | 2.4.7-3.4 | SUSE-SU-2017:0474-1 |
| SLES 11 SP4 | ppp | 2.4.5.git-2.31.7 | SUSE-SU-2017:0473-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP2 | ppp | 2.4.7-3.4 | SUSE-SU-2017:0474-1 |
| SLES for SAP 12 SP1 | ppp | 2.4.7-3.4 | SUSE-SU-2017:0474-1 |
| SLES for SAP 11 SP4 | ppp | 2.4.5.git-2.31.7 | SUSE-SU-2017:0473-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | ppp | 2.4.7-7.1 | openSUSE-SU-2024:10049-1 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | ppp | 2.5.0-1 | — |
Advisories 6
- USN-2595-1 ppp vulnerability Ubuntu Security Notices (USN) · Apr 22, 2026
- DLA-205-1 ppp - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-3228-1 ppp - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2017:0473-1 Security update for ppp SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10049-1 ppp-2.4.7-7.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:0474-1 Security update for ppp SUSE / openSUSE Security Updates · Feb 4, 2026
References
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=782450
- MDVSA-2015:222 vendor-advisory
- DSA-3228 vendor-advisory
- USN-2595-1 vendor-advisory
- 74163 vdb-entry
- GLSA-201701-50 vendor-advisory
- http://advisories.mageia.org/MGASA-2015-0173.html
- openSUSE-SU-2015:2121 vendor-advisory