oss-sec mailing list archives
Re: Fwd: [Full-disclosure] stratsec Security Advisory SS-2010-005: Samba Multiple DoS Vulnerabilities (3.3.x)
From: Eren Türkay <eren () pardus org tr>
Date: Fri, 28 May 2010 16:45:21 +0300
On Fri, May 28, 2010 at 10:04:32AM +0200, Tomas Hoger wrote:
Hi Eren!
Hi Tomas,
Note that your bug id is off-by-one ;). However, that's not the stratsec issue, you should be looking at this:
Ah, right. I confused the bug mentioned in 3.4.8 with the advisory. Thank you for clarification and pointing this out!
o Fix an uninitialized variable read in smbd (bug #7254). https://bugzilla.samba.org/show_bug.cgi?id=7254 http://git.samba.org/?p=samba.git;a=commitdiff;h=9280051bfba33745 This issue should rather be described as OOB read as mentioned in Josh's CVE assignment. This problem may affect fairly old samba version, I've seen the same code / issue in some oldish 3.0.x versions. The crash is not too reliable though, I've only seen crash on some (recent) versions using stratsec reproducer (you've noticed already their advisory incorrectly labels reproducers and has them mixed-up, right?).
Right. I am going to pick up the fix, then.
CVE-2010-1642 mentioned above. NULL deref CVE-2010-1635 should only affect 3.5.x, as it occurs in this code, which does not exist in 3.4.x: http://git.samba.org/?p=samba.git;a=commitdiff;h=c116652a3050a854 On 3.3.x, reproducer causes smbd to follow error code path where smb_panic is called.
Thanks. To summarize, 3.3.x is only affected by OOB read (CVE-2010-1642) As smbd follows error code path where smb_panic is called, I guess we can say that 3.3.x is not affected by CVE-2010-1642. Regards, Eren
Current thread:
- Fwd: [Full-disclosure] stratsec Security Advisory SS-2010-005: Samba Multiple DoS Vulnerabilities Thomas Biege (May 20)
- Re: Fwd: [Full-disclosure] stratsec Security Advisory SS-2010-005: Samba Multiple DoS Vulnerabilities Thomas Biege (May 25)
- <Possible follow-ups>
- Re: Fwd: [Full-disclosure] stratsec Security Advisory SS-2010-005: Samba Multiple DoS Vulnerabilities Josh Bressers (May 25)
- Re: Fwd: [Full-disclosure] stratsec Security Advisory SS-2010-005: Samba Multiple DoS Vulnerabilities Thomas Biege (May 26)
- Re: Fwd: [Full-disclosure] stratsec Security Advisory SS-2010-005: Samba Multiple DoS Vulnerabilities (3.3.x) Eren Türkay (May 27)
- Re: Fwd: [Full-disclosure] stratsec Security Advisory SS-2010-005: Samba Multiple DoS Vulnerabilities (3.3.x) Tomas Hoger (May 28)
- Re: Fwd: [Full-disclosure] stratsec Security Advisory SS-2010-005: Samba Multiple DoS Vulnerabilities (3.3.x) Eren Türkay (May 28)
- Re: Fwd: [Full-disclosure] stratsec Security Advisory SS-2010-005: Samba Multiple DoS Vulnerabilities (3.3.x) Tomas Hoger (May 31)