Bug 245219 (CVE-2007-3123) - clamav < 0.90.3 multiple vulnerabilities
Summary: clamav < 0.90.3 multiple vulnerabilities
Alias: CVE-2007-3123
Product: Fedora
Classification: Fedora
Component: clamav
Version: 7
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Enrico Scholz
QA Contact: Fedora Extras Quality Assurance
Keywords: Security
Depends On:
TreeView+ depends on / blocked
Reported: 2007-06-21 18:38 UTC by Ville Skyttä
Modified: 2007-11-30 22:12 UTC (History)
3 users (show)

Clone Of:
Last Closed: 2007-11-01 20:34:33 UTC

Attachments (Terms of Use)

Description Ville Skyttä 2007-06-21 18:38:11 UTC
"unsp.c in ClamAV before 0.90.3 and 0.91 before 0.91rc1 does not properly
calculate the end of a certain buffer, with unknown impact and remote attack

"libclamav/others.c in ClamAV before 0.90.3 and 0.91 before 0.91rc1 uses
insecure permissions for temporary files that are created by the
cli_gentempstream function in clamd/clamdscan, which might allow local users to
read sensitive files."

"The parsing engine in ClamAV before 0.90.3 and 0.91 before 0.91rc1 allows
remote attackers to bypass scanning via a RAR file with a header flag value of
10, which can be processed by WinRAR."

"unrar.c in libclamav in ClamAV before 0.90.3 and 0.91 before 0.91rc1 allows
remote attackers to cause a denial of service (core dump) via a crafted RAR file
with a modified vm_codesize value, which triggers a heap-based buffer overflow."

Not checked whether 0.88.x in FC-6 and earlier are affected.

Comment 1 Ville Skyttä 2007-07-19 18:01:22 UTC
One more that I didn't find in Bugzilla and apparently affects 0.90.x series
earlier than 0.90.3:

"File descriptor leak in the PDF handler in Clam AntiVirus (ClamAV) allows
remote attackers to cause a denial of service via a crafted PDF file."

Comment 2 Jan ONDREJ 2007-08-30 07:39:33 UTC
Another problem is, that freshclam is writing to logs this:
Reading CVD header (daily.cvd): Ignoring mirror (too often connection
s with outdated version)

I think updating is not working properly. This does not happen always and I am
unable to reproduce this on other machine.

And last problem, libclamav is loading it's database a long time (aprox. 2-5
minutes). This bug can be also fixed with upgrade to clamav 0.91.

What is the problem with releasing clamav-0.91.2 built in Koji?

How can I help to release clamav updates with less time? My Fedora system is
vulnerable to some vulnerabilities with old clamav. :-(

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