RAR: Format string and buffer overflow vulnerabilities
1.
Gentoo Linux Security Advisory
Version Information
| Advisory Reference |
GLSA 200511-10 / rar |
| Release Date |
November 13, 2005 |
| Latest Revision |
November 13, 2005: 01 |
| Impact |
normal |
| Exploitable |
remote |
| Package |
Vulnerable versions |
Unaffected versions |
Architecture(s) |
| app-arch/rar |
<
3.5.1 |
>=
3.5.1 |
All supported architectures
|
Related bugreports:
#111926
Synopsis
RAR contains a format string error and a buffer overflow vulnerability that
may be used to execute arbitrary code.
2.
Impact Information
Background
RAR is a powerful archive manager that can decompress RAR, ZIP and
other files, and can create new archives in RAR and ZIP file format.
Description
Tan Chew Keong reported about two vulnerabilities found in RAR:
- A format string error exists when displaying a diagnostic
error message that informs the user of an invalid filename in an
UUE/XXE encoded file.
- Some boundary errors in the processing
of malicious ACE archives can be exploited to cause a buffer
overflow.
Impact
A remote attacker could exploit these vulnerabilities by enticing
a user to:
- decode a specially crafted UUE/XXE file,
or
- extract a malicious ACE archive containing a file with an
overly long filename.
When the user performs these
actions, the arbitrary code of the attacker's choice will be executed.
3.
Resolution Information
Workaround
There is no known workaround at this time.
Resolution
All RAR users should upgrade to the latest version:
Code Listing 3.1: Resolution |
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-arch/rar-3.5.1"
|
4.
References
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