CVE-2019-11503 Race condition in n/a
A symlink race condition in snap-confine allows local attackers to bypass permission checks and potentially escalate privileges.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2019-11503?
CVE-2019-11503 is a high-severity vulnerability in n/a, published on 24 Apr 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
snap-confine as included in snapd before 2.39 did not guard against symlink races when performing the chdir() to the current working directory of the calling user, aka a "cwd restore permission bypass."
Weakness: CWE-59
Which versions are affected by CVE-2019-11503?
It affects 1 product.
Products include Canonical Snapd.
How do I fix CVE-2019-11503?
Upgrade to a fixed version.
Is CVE-2019-11503 being exploited?
There is no known exploitation of CVE-2019-11503 in the wild and no public exploit code.
Other vulnerabilities in n/a
- CVE-2023-1523 Command injection in snapd
- CVE-2020-27352 Privilege escalation in snapd
- CVE-2019-7304 Local privilege escalation via snapd socket
- CVE-2021-4120 snapd could be made to bypass intended access restrictions through snap content interfaces and layout paths
- CVE-2024-5138 CVE-2024-5138: snapd snapctl auth bypass
Sources
Also known as DEBIAN-CVE-2019-11503, GHSA-w39p-qmcm-pxpm, UBUNTU-CVE-2019-11503.