pcal getline and pcalutil buffer overflows
| pcal-getline-pcalutil-bo (18552) |  High Risk |
Description:
pcal is vulnerable to a buffer overflow in the getline and pcalutil functions. By creating a specially-crafted calendar file, a remote attacker could overflow a buffer and execute arbitrary code on the system with user privileges, once the file is opened.
Platforms Affected:
- Debian, Debian Linux 3.0
- pcal, pcal 0.7.1
Remedy:
For Debian GNU/Linux 3.0 (alias woody):
Upgrade to the latest version of pcal (4.7-8woody1 or later), as listed in DSA-625-1. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
Consequences:
Gain Access
References:
- pcal Web site, PCAL and LCAL: PostScript Calendar Programs at http://pcal.sourceforge.net/.
- University of Illinois Chicago Web site, pcal 4.7.1 getline overflows tmpbuf; at http://tigger.uic.edu/~jlongs2/holes/pcal.txt.
- BID-12035: PCAL Calendar File getline Buffer Overflow Vulnerability
- BID-12036: PCAL Calendar File get_holiday Buffer Overflow Vulnerability
- CVE-2004-1289: Multiple buffer overflows in (1) the getline function in pcalutil.c and (2) the get_holiday function in readfile.c for pcal 4.7.1 allow remote attackers to execute arbitrary code via a crafted calendar file.
- DSA-625: pcal -- buffer overflows
Reported:
Dec 15, 2004
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