Bug 2241535 (CVE-2023-42118) - CVE-2023-42118 libspf2: Integer Underflow Remote Code Execution Vulnerability
Summary: CVE-2023-42118 libspf2: Integer Underflow Remote Code Execution Vulnerability
Keywords:
Status: NEW
Alias: CVE-2023-42118
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2241536 2241537
Blocks: 2241518
TreeView+ depends on / blocked
 
Reported: 2023-09-30 17:57 UTC by Nick Tait
Modified: 2023-10-05 05:47 UTC (History)
0 users

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An integer underflow flaw was discovered in libspf2 library which exists within the parsing of SPF macros. When parsing SPF macros, the process does not properly validate user-supplied data, which can result in an integer underflow before writing to memory. This vulnerability allows network-adjacent unprivileged attackers to execute code in the context of the service account.
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Description Nick Tait 2023-09-30 17:57:30 UTC 
https://www.zerodayinitiative.com/advisories/ZDI-23-1472/
Comment 1 Nick Tait 2023-09-30 17:57:46 UTC 
Created libspf2 tracking bugs for this issue:

Affects: epel-all [bug 2241536]
Affects: fedora-all [bug 2241537]
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