1. Gentoo Linux Security Advisory
| Advisory Reference | GLSA 200704-23 / capi4k-utils |
| Release Date | April 27, 2007 |
| Latest Revision | April 27, 2007: 01 |
| Impact | high |
| Exploitable | local |
| Package | Vulnerable versions | Unaffected versions | Architecture(s) |
| net-dialup/capi4k-utils | < 20050718-r3 | >= 20050718-r3 | All supported architectures |
Related bugreports: #170870
capi4k-utils is vulnerable to a buffer overflow in the bufprint() function.
capi4k-utils is a set of utilities for accessing COMMON-ISDN-API software interfaces for ISDN devices.
The bufprint() function in capi4k-utils fails to properly check boundaries of data coming from CAPI packets.
A local attacker could possibly escalate privileges or cause a Denial of Service by sending a crafted CAPI packet.
There is no known workaround at this time.
All capi4k-utils users should upgrade to the latest version:
Code Listing 3.1: Resolution |
# emerge --sync # emerge --ask --oneshot --verbose ">=net-dialup/capi4k-utils-20050718-r3" |