CVE-2020-12105 Security feature bypass in n/a
Attackers can perform man-in-the-middle attacks due to mishandled negative return values in certificate checks, affecting OpenConnect users.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-12105?
CVE-2020-12105 is a medium-severity vulnerability in Opensuse Leap, published on 23 Apr 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
OpenConnect through 8.08 mishandles negative return values from X509_check_ function calls, which might assist attackers in performing man-in-the-middle attacks.
Weakness: CWE-755
Which versions are affected by CVE-2020-12105?
It affects 2 products.
Linux distribution packages (4)
openconnect SUSE:Linux Enterprise Workstation Extension 12 SP4 | All versions | 7.08-3.9.1 |
openconnect SUSE:Linux Enterprise Workstation Extension 12 SP5 | All versions | 7.08-3.9.1 |
openconnect SUSE:Linux Enterprise Workstation Extension 15 SP1 | All versions | 7.08-6.6.1 |
openconnect openSUSE:Leap 15.1 | All versions | 7.08-lp151.6.6.1 |
Products include Infradead Openconnect, Opensuse Leap.
How do I fix CVE-2020-12105?
Upgrade to a fixed version.
Is CVE-2020-12105 being exploited?
There is no known exploitation of CVE-2020-12105 in the wild and no public exploit code.
Other vulnerabilities in Opensuse Leap
- CVE-2013-7098 Memory corruption in n/a
- CVE-2012-3291 Memory corruption in n/a
- CVE-2010-3901 Security feature bypass in n/a
- CVE-2012-6128 Multiple stack-based buffer overflows in http.c in OpenConnect before 4.08 allow remote VPN gateways to cause a denial of service (applicati
- CVE-2009-5009 Use after free in n/a
Sources
Also known as DEBIAN-CVE-2020-12105, GHSA-wr4v-x69c-q5jx, SUSE-SU-2020:1264-1, SUSE-SU-2020:1337-1, openSUSE-SU-2020:0694-1.