Bug 2048928 (CVE-2021-45955) - CVE-2021-45955 dnsmasq: a heap-based buffer overflow in resize_packet
Summary: CVE-2021-45955 dnsmasq: a heap-based buffer overflow in resize_packet
Keywords:
Status: NEW
Alias: CVE-2021-45955
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: 2048929
Blocks: 2048923
TreeView+ depends on / blocked
 
Reported: 2022-02-01 08:23 UTC by Marian Rehak
Modified: 2022-05-19 11:38 UTC (History)
16 users (show)

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Description Marian Rehak 2022-02-01 08:23:33 UTC
Dnsmasq 2.86 has a heap-based buffer overflow in resize_packet (called from FuzzResizePacket and fuzz_rfc1035.c).

Reference:

https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-932.yaml
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35898

Comment 1 Marian Rehak 2022-02-01 08:23:49 UTC
Created dnsmasq tracking bugs for this issue:

Affects: fedora-all [bug 2048929]


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