CVE-2021-35331 Code injection in n/a
A format string vulnerability in Tcl's nmakehlp.c allows code execution via a crafted file, though its significance is disputed.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2021-35331?
CVE-2021-35331 is a high-severity code injection vulnerability in n/a, published on 5 Jul 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
In Tcl 8.6.11, a format string vulnerability in nmakehlp.c might allow code execution via a crafted file. NOTE: multiple third parties dispute the significance of this finding
Weakness: CWE-134
Which versions are affected by CVE-2021-35331?
It affects 1 product.
Linux distribution packages (9)
tcl SUSE:Linux Enterprise Module for Basesystem 15 SP3 | All versions | 8.6.12-150300.14.3.1 |
tk SUSE:Linux Enterprise Module for Basesystem 15 SP3 | All versions | 8.6.12-150300.10.3.1 |
tk SUSE:Linux Enterprise Module for Desktop Applications 15 SP3 | All versions | 8.6.12-150300.10.3.1 |
tcl SUSE:Linux Enterprise Server 12 SP5 | All versions | 8.6.12-11.3.1 |
tk SUSE:Linux Enterprise Server 12 SP5 | All versions | 8.6.12-11.3.1 |
tcl SUSE:Linux Enterprise Server for SAP Applications 12 SP5 | All versions | 8.6.12-11.3.1 |
tk SUSE:Linux Enterprise Server for SAP Applications 12 SP5 | All versions | 8.6.12-11.3.1 |
tcl SUSE:Linux Enterprise Software Development Kit 12 SP5 | All versions | 8.6.12-11.3.1 |
tk SUSE:Linux Enterprise Software Development Kit 12 SP5 | All versions | 8.6.12-11.3.1 |
Products include Tcl Tcl.
How do I fix CVE-2021-35331?
Apply the vendor's patch.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2021-35331 being exploited?
There is no known exploitation of CVE-2021-35331 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2021-35331, ECHO-cd9d-2394-e10e, GHSA-539q-24vg-qfm4, OESA-2022-1720, ROOT-OS-DEBIAN-12-CVE-2021-35331, SUSE-FU-2022:0484-1 and 1 more.