Bug 2048930 (CVE-2021-45954) - CVE-2021-45954 dnsmasq: a heap-based buffer overflow in extract_name
Summary: CVE-2021-45954 dnsmasq: a heap-based buffer overflow in extract_name
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2021-45954
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2048931
Blocks: 2048923
TreeView+ depends on / blocked
 
Reported: 2022-02-01 08:25 UTC by Marian Rehak
Modified: 2023-03-14 10:19 UTC (History)
16 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2022-05-24 23:37:29 UTC
Embargoed:

Attachments (Terms of Use)

Description Marian Rehak 2022-02-01 08:25:59 UTC 
A heap-based buffer overflow in extract_name (called from answer_auth and FuzzAuth).

Reference:

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35861
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-931.yaml
Comment 1 Marian Rehak 2022-02-01 08:26:13 UTC 
Created dnsmasq tracking bugs for this issue:

Affects: fedora-all [bug 2048931]
Note You need to log in before you can comment on or make changes to this bug.