USN-726-2: curl regression | Ubuntu security notices

Packages

curl -

Details

USN-726-1 fixed a vulnerability in curl. Due to an incomplete fix, a regression
was introduced in Ubuntu 8.10 that caused certain types of URLs to fail. This
update fixes the problem. We apologize for the inconvenience.

Original advisory details:

It was discovered that curl did not enforce any restrictions when following
URL redirects. If a user or automated system were tricked into opening a URL to
an untrusted server, an attacker could use redirects to gain access to abitrary
files. This update changes curl behavior to prevent following “file” URLs after
a redirect.

USN-726-1 fixed a vulnerability in curl. Due to an incomplete fix, a regression
was introduced in Ubuntu 8.10 that caused certain types of URLs to fail. This
update fixes the problem. We apologize for the inconvenience.

Original advisory details:

It was discovered that curl did not enforce any restrictions when following
URL redirects. If a user or automated system were tricked into opening a URL to
an untrusted server, an attacker could use redirects to gain access to abitrary
files. This update changes curl behavior to prevent following “file” URLs after
a redirect.

Update instructions

In general, a standard system upgrade is sufficient to effect the necessary changes.

Learn more about how to get the fixes.

Ubuntu Release	Package Version
8.10 intrepid	libcurl3-gnutls – 7.18.2-1ubuntu4.3
8.10 intrepid	libcurl3 – 7.18.2-1ubuntu4.3

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References

https://launchpad.net/bugs/337501