USN-102-1: shar vulnerabilities
Publication date
29 March 2005
Overview
shar vulnerabilities
Releases
Details
Shaun Colley discovered a buffer overflow in "shar" that was triggered
by output files (specified with -o) with names longer than 49
characters. This could be exploited to run arbitrary attacker
specified code on systems that automatically process uploaded files
with shar.
Ulf Harnhammar discovered that shar does not check the data length
returned by the 'wc' command. However, it is believed that this cannot
actually be exploited on real systems.
Shaun Colley discovered a buffer overflow in "shar" that was triggered
by output files (specified with -o) with names longer than 49
characters. This could be exploited to run arbitrary attacker
specified code on systems that automatically process uploaded files
with shar.
Ulf Harnhammar discovered that shar does not check the data length
returned by the 'wc' command. However, it is believed that this cannot
actually be exploited on real systems.
Update instructions
In general, a standard system update will make all the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
| Ubuntu Release | Package Version | ||
|---|---|---|---|
| 4.10 warty | sharutils – | ||
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