Bug 2048932 (CVE-2021-45953) - CVE-2021-45953 dnsmasq: a heap-based buffer overflow in extract_name
Summary: CVE-2021-45953 dnsmasq: a heap-based buffer overflow in extract_name
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2021-45953
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: 2048933
Blocks: 2048923
TreeView+ depends on / blocked
 
Reported: 2022-02-01 08:28 UTC by Marian Rehak
Modified: 2022-05-24 23:41 UTC (History)
16 users (show)

Fixed In Version:
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Environment:
Last Closed: 2022-05-24 23:41:09 UTC


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Description Marian Rehak 2022-02-01 08:28:20 UTC
A heap-based buffer overflow in extract_name (called from hash_questions and fuzz_util.c).

Reference:

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35858
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-929.yaml

Comment 1 Marian Rehak 2022-02-01 08:28:35 UTC
Created dnsmasq tracking bugs for this issue:

Affects: fedora-all [bug 2048933]


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