Description
Integer overflow in the getword function in options.c in pppd in Paul's PPP Package (ppp) before 2.4.7 allows attackers to "access privileged options" via a long word in an options file, which triggers a heap-based buffer overflow that "[corrupts] security-relevant variables."
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 | — |
| Debian 13 | ppp | 2.4.6-3 | — |
| Debian 12 | ppp | 2.4.6-3 | — |
| Debian 7 | ppp | 2.4.5-5.1+deb7u1 | DSA-3079-1 |
| Debian 6.0 | ppp | 2.4.5-4+deb6u1 | DLA-74-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | ppp | 2.4.5-5.1ubuntu2.1 | USN-2429-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | ppp | 2.4.7-7.1 | openSUSE-SU-2024:10049-1 |
Advisories 4
- USN-2429-1 ppp vulnerability Ubuntu Security Notices (USN) · Apr 22, 2026
- DLA-74-1 ppp - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-3079-1 ppp - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10049-1 ppp-2.4.7-7.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
References
- USN-2429-1 vendor-advisory
- [linux-ppp] 20140810 ppp-2.4.7 released mailing-list
- MDVSA-2015:135 vendor-advisory
- http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1128748
- FEDORA-2014-9412 vendor-advisory
- DSA-3079 vendor-advisory
- http://advisories.mageia.org/MGASA-2014-0368.html
- https://github.com/paulusmack/ppp/commit/7658e8257183f062dc01f87969c140707c7e52cb