Description
rx/rx.c in OpenAFS before 1.6.15 and 1.7.x before 1.7.33 does not properly initialize the padding of a data structure when constructing an Rx acknowledgement (ACK) packet, which allows remote attackers to obtain sensitive information by (1) conducting a replay attack or (2) sniffing the network.
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 13 | openafs | 1.6.15-1 | — |
| Debian 12 | openafs | 1.6.15-1 | — |
| Debian 8 | openafs | 1.6.9-2+deb8u4 | DSA-3387-1 |
| Debian 7 | openafs | 1.6.1-3+deb7u5 | DSA-3387-1 |
| Debian 6.0 | openafs | 1.4.12.1+dfsg-4+squeeze4 | DLA-342-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | openafs | 1.6.7-1ubuntu1.1 | — |
Advisories 2
- DLA-342-1 openafs - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-3387-1 openafs - security update Debian Security (DSA / DLA) · Mar 9, 2026