CVE-2021-0411
published 2021-10-25CVE-2021-0411: In flv extractor, there is a possible out of bounds read due to an integer overflow. This could lead to local information disclosure with no additional…
PriorityP424medium5.5CVSS 3.1
AVLACLPRLUINSUCHINAN
EPSS
0.11%
1.6th percentile
In flv extractor, there is a possible out of bounds read due to an integer overflow. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS05561362; Issue ID: ALPS05561362.
Affected
2 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| android | — | — | |
| android | — | — |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
nvdv2.02.1LOWAV:L/AC:L/Au:N/C:P/I:N/A:N
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GHSA
MailKit has STARTTLS Response Injection via unflushed stream buffer that enables SASL mechanism downgrade
ghsa·2026-04-18
CVE-2021-23993 [MEDIUM] CWE-74 MailKit has STARTTLS Response Injection via unflushed stream buffer that enables SASL mechanism downgrade
MailKit has STARTTLS Response Injection via unflushed stream buffer that enables SASL mechanism downgrade
### Summary
A STARTTLS Response Injection vulnerability in MailKit allows a Man-in-the-Middle attacker to inject arbitrary protocol responses across the plaintext-to-TLS trust boundary, enabling SASL authentication mechanism downgrade (e.g., forcing PLAIN instead of SCRAM-SHA-256). The internal read buffer in `SmtpStream`, `ImapStream`, and `Pop3Stream` is not flushed when the underlying stream is replaced with `SslStream` during STARTTLS upgrade, causing pre-TLS attacker-injected data to be processed as trusted post-TLS responses. This is the same vulnerability class as CVE-2021-23993 (Thunderbird), CVE-2021-33515 (Dovecot), and CVE-2011-0411 (Postfix).
### Details
The `Stream` pr
GHSA
GHSA-q3fm-m628-4xww: In flv extractor, there is a possible out of bounds read due to an integer overflow
ghsa_unreviewed·2022-05-24
CVE-2021-0411 [MEDIUM] CWE-125 GHSA-q3fm-m628-4xww: In flv extractor, there is a possible out of bounds read due to an integer overflow
In flv extractor, there is a possible out of bounds read due to an integer overflow. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS05561362; Issue ID: ALPS05561362.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2021-10-25
Published