lpr checkremote() format string
| lpr-checkremote-format-string (5286) |  Low Risk |
Description:
The Ipr utility in OpenBSD could allow a remote attacker to input a string that is passed to syslog as a format string, due to a vulnerability in the checkremote function.
Consequences:
Remedy:
For OpenBSD:
Apply the printjob patch included in the BugTraq Mailing List posted dated Tue Sep 26 2000 00:57:04. See References.
For Conectiva Linux 4.x and 5.x:
Upgrade to the latest version of lpr (0.50-6cl or later), as listed in Conectiva Linux Security Announcement CLSA-2000:321. See References.
For Linux-Mandrake 6.0, 6.1, 7.0, and 7.1:
Upgrade to the latest version of lpr (0.50-3 or later), as listed in MandrakeSoft Security Advisory MDKSA-2000:054 : lpr. See References.
For Red Hat Linux 5.2:
Upgrade to the latest version of lpr (0.50-7.5 or later), as listed in Red Hat Security Advisory
RHSA-2000:066-03. See References.
For Red Hat Linux 6.x:
Upgrade to the latest version of lpr (0.50-7.6 or later), as listed in Red Hat Security Advisory
RHSA-2000:066-03. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
References:
- BugTraq Mailing List, Mon Sep 25 2000 - 18:57:04 CDT: Format strings: bug #1: BSD-lpr.
- Conectiva Linux Announcement CLSA-2000:321: lpr: Possible local root exploit.
- MandrakeSoft Security Advisory MDKSA-2000:054: lpr.
- RHSA-2000:066-03: lpr has a format string security bug, LPRng compat issues, and a race cond.
- BID-1711: Multiple Vendor lpr Format String Vulnerability
- CVE-2000-1208: Format string vulnerability in startprinting() function of printjob.c in BSD-based lpr lpd package may allow local users to gain privileges via an improper syslog call that uses format strings from the checkremote() call.
- OSVDB ID: 13765: BSD-based lpr Package startprinting() Function Local Format String
Platforms Affected:
- Connectiva Linux
- MandrakeSoft Mandrake Linux
- NetBSD NetBSD
- OpenBSD OpenBSD 2.7
- RedHat Linux
Reported:
Sep 26, 2000
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