The Precise Pangolin has reached end of life, so this bug will not be
fixed for that release
** Changed in: grep (Ubuntu Precise)
Status: Triaged => Won't Fix
--
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to grep in Ubuntu.
https://bugs.launchpad.net/bugs/1091473
Title:
grep <2.11 is vulnerable to "Arbitrary command execution"
Status in grep package in Ubuntu:
Fix Released
Status in grep source package in Lucid:
Won't Fix
Status in grep source package in Oneiric:
Won't Fix
Status in grep source package in Precise:
Won't Fix
Status in grep source package in Quantal:
Fix Released
Status in grep source package in Raring:
Fix Released
Status in grep source package in Hardy:
Won't Fix
Bug description:
grep <2.11 is vulnerable to command execution vulnerability, and it is
not possible to patch unless you build the source directly from the
git repo.
ubuntu 12.04(And everything else, I would assume) uses version 2.10 of
grep. it is not possible to upgrade without downloading the src and
building it yourself.
PoC:
perl -e 'print "x"x(2**31)' | grep x > /dev/null
This is the grep news form for this:
* Noteworthy changes in release 2.11 (2012-03-02) [stable]
** Bug fixes
grep no longer dumps core on lines whose lengths do not fit in 'int'.
(e.g., lines longer than 2 GiB on a typical 64-bit host).
Instead, grep either works as expected, or reports an error.
An error can occur if not enough main memory is available, or if the
GNU C library's regular expression functions cannot handle such long
lines.
[bug present since "the beginning"]
Solution: Send out a grep update with atleast 2.11 grep from
http://git.sv.gnu.org/cgit/grep.git
Full PoC of actually "abusing" this vulnerablility(ls -la within grep)
can be provided, if 100% needed.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/grep/+bug/1091473/+subscriptions
--
Mailing list: https://launchpad.net/~touch-packages
Post to : touch-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~touch-packages
More help : https://help.launchpad.net/ListHelp
