FEDORA-2021-2cb63d912a created by rsroka a month ago for Fedora 33
stable

Security fix for CVE-2021-3156

How to install

sudo dnf upgrade --advisory=FEDORA-2021-2cb63d912a

This update has been submitted for testing by rsroka.

a month ago

This update's test gating status has been changed to 'ignored'.

a month ago

This update's test gating status has been changed to 'waiting'.

a month ago

This update's test gating status has been changed to 'ignored'.

a month ago
User Icon gourlaysama commented & provided feedback a month ago
karma

CVE-2021-3156 fixed. ("sudoedit -s /" returns usage instead of error, as described in the blog post's FAQ).

BZ#1917684 CVE-2021-3156 sudo: Heap buffer overflow in argument parsing
BZ#1920611 sudo-1.9.5p2 is available
BZ#1920618 CVE-2021-3156 sudo: Heap buffer overflow in argument parsing [fedora-all]
User Icon mattdm commented & provided feedback a month ago
karma

Works. Did not validate that the exploit is fixed.

BZ#1920611 sudo-1.9.5p2 is available
User Icon ttrinks commented & provided feedback a month ago
karma

wfm

This update has been submitted for stable by bodhi.

a month ago
User Icon edwintorok commented & provided feedback a month ago
karma

Downloaded build from Koji, sudo still works, and sudoedit -s / shows usage: which means it should not be vulnerable.

User Icon edwintorok provided feedback a month ago
karma
BZ#1917684 CVE-2021-3156 sudo: Heap buffer overflow in argument parsing
BZ#1920618 CVE-2021-3156 sudo: Heap buffer overflow in argument parsing [fedora-all]
User Icon vstinner commented & provided feedback a month ago
karma

I installed the following packages:

sudo dnf install https://kojipkgs.fedoraproject.org//packages/sudo/1.9.5p2/1.fc33/x86_64/sudo-1.9.5p2-1.fc33.x86_64.rpm https://kojipkgs.fedoraproject.org//packages/sudo/1.9.5p2/1.fc33/x86_64/sudo-python-plugin-1.9.5p2-1.fc33.x86_64.rpm

=> rpm -q sudo says "sudo-1.9.5p2-1.fc33.x86_64"

Vulnerability check using (cd /; sudoedit -s '\' xxxxxxxxxxxx) command: * Before: "sudoedit: malloc.c:2394: sysmalloc: Assertion (...) failed." * After: "usage: sudoedit [-AknS] [-r role] (...)"

sudo --version: * Before: Sudo version 1.9.5p1 * After: Sudo version 1.9.5p2

Note: but I failed to test the update in the usual way, "sudo dnf upgrade --enablerepo=updates-testing --advisory=FEDORA-2021-2cb63d912a" doesn't find any update.

BZ#1917684 CVE-2021-3156 sudo: Heap buffer overflow in argument parsing
BZ#1920611 sudo-1.9.5p2 is available
BZ#1920618 CVE-2021-3156 sudo: Heap buffer overflow in argument parsing [fedora-all]
User Icon uwueviee commented & provided feedback a month ago
karma

Fixes vulnerability (tested using sudoedit -s / old output: "sudoedit: /: not a regular file" new output: "usage: sudoedit")

BZ#1917684 CVE-2021-3156 sudo: Heap buffer overflow in argument parsing
BZ#1920611 sudo-1.9.5p2 is available
BZ#1920618 CVE-2021-3156 sudo: Heap buffer overflow in argument parsing [fedora-all]

This update has been pushed to stable.

a month ago
User Icon scorreia commented & provided feedback a month ago
karma

Works well.

BZ#1917684 CVE-2021-3156 sudo: Heap buffer overflow in argument parsing
BZ#1920611 sudo-1.9.5p2 is available
BZ#1920618 CVE-2021-3156 sudo: Heap buffer overflow in argument parsing [fedora-all]
User Icon t3rm1n4l commented & provided feedback a month ago
karma

wfm

BZ#1917684 CVE-2021-3156 sudo: Heap buffer overflow in argument parsing
BZ#1920611 sudo-1.9.5p2 is available
BZ#1920618 CVE-2021-3156 sudo: Heap buffer overflow in argument parsing [fedora-all]
User Icon ersen provided feedback a month ago
karma
BZ#1917684 CVE-2021-3156 sudo: Heap buffer overflow in argument parsing
BZ#1920618 CVE-2021-3156 sudo: Heap buffer overflow in argument parsing [fedora-all]
User Icon odilhao commented & provided feedback a month ago
karma

Worked here

BZ#1917684 CVE-2021-3156 sudo: Heap buffer overflow in argument parsing
BZ#1920611 sudo-1.9.5p2 is available
BZ#1920618 CVE-2021-3156 sudo: Heap buffer overflow in argument parsing [fedora-all]
User Icon geraldosimiao commented & provided feedback a month ago
karma

WFM

BZ#1917684 CVE-2021-3156 sudo: Heap buffer overflow in argument parsing
BZ#1920611 sudo-1.9.5p2 is available
BZ#1920618 CVE-2021-3156 sudo: Heap buffer overflow in argument parsing [fedora-all]

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Metadata
Type
security
Severity
high
Karma
11
Signed
Content Type
RPM
Test Gating
Settings
Unstable by Karma
-3
Stable by Karma
3
Stable by Time
14 days
Dates
submitted
a month ago
in stable
a month ago
BZ#1917684 CVE-2021-3156 sudo: Heap buffer overflow in argument parsing
0
9
BZ#1920611 sudo-1.9.5p2 is available
0
8
BZ#1920618 CVE-2021-3156 sudo: Heap buffer overflow in argument parsing [fedora-all]
0
9

Automated Test Results