Memory disclosure via unvalidated uuencoded line length
Published Apr 14, 2022 · Updated Aug 3, 2024
Out-of-bounds read in mutt_decode_uuencoded() in Mutt 0.94.13 through 2.2.2 allows remote attackers to expose process memory. The decoder trusts each uuencoded line's initial length character and continues decoding past the line terminator and, for suitable values, past the input buffer. A recipient must display or reply to a crafted message; disclosed bytes can include fragments of other messages, passphrases, or keys held in the process.
Summary
What happened
Out-of-bounds read in mutt_decode_uuencoded() in Mutt 0.94.13 through 2.2.2 allows remote attackers to expose process memory. The decoder trusts each uuencoded line's initial length character and continues decoding past the line terminator and, for suitable values, past the input buffer. A recipient must display or reply to a crafted message; disclosed bytes can include fragments of other messages, passphrases, or keys held in the process.
The record
- CVE
- CVE-2022-1328
- Published
- Apr 14, 2022
- Updated
- Aug 3, 2024
- Vendor
- Mutt
- Product
- Mutt
- Classifications
- CWE-120
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 14, 2022CVE publishedPublication date reported by the CVE source.
- Aug 3, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=>=0.94.13, <2.2.3
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Upstream crafted uuencoded-message reproducerproof of concept · unverified
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo