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CVE-2021-3657

Quick assessment

Affected
n/a isync
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Sourceforge mbsync是美国Sourceforge社区的一个应用软件。提供同步远程IMAP邮箱和本地maildir样式的邮箱 Sourceforge mbsync 存在缓冲区错误漏洞，该漏洞源于由于对非常大的 IMAP字面量的处理不足，恶意或受攻击的IMAP服务器，甚至假设外部电子邮件发送者，可能会导致几种不同的缓冲区溢出，这可能会被用于远程代码执行。

AI Predicted 9.8 Difficulty: Easy EPSS 3.46% · P88
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I. Basic Information for CVE-2021-3657

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in mbsync versions prior to 1.4.4. Due to inadequate handling of extremely large (>=2GiB) IMAP literals, malicious or compromised IMAP servers, and hypothetically even external email senders, could cause several different buffer overflows, which could conceivably be exploited for remote code execution.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
内存缓冲区边界内操作的限制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Sourceforge mbsync 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Sourceforge mbsync是美国Sourceforge社区的一个应用软件。提供同步远程IMAP邮箱和本地maildir样式的邮箱 Sourceforge mbsync 存在缓冲区错误漏洞，该漏洞源于由于对非常大的 IMAP字面量的处理不足，恶意或受攻击的IMAP服务器，甚至假设外部电子邮件发送者，可能会导致几种不同的缓冲区溢出，这可能会被用于远程代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- isync isync 1.4.4 -

II. Public POCs for CVE-2021-3657

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III. Intelligence Information for CVE-2021-3657

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Vendor Advisories for CVE-2021-3657 (1)

Mailing List Discussions for CVE-2021-3657 (2)

Same Patch Batch · n/a · 2022-02-18 · 67 CVEs total

CVE-2022-25299 9.8 CRITICAL Arbitrary File Write
CVE-2021-23702 7.6 HIGH Prototype Pollution
CVE-2022-25298 7.5 HIGH Path Traversal
CVE-2021-46062 MingSoft MCMS 安全漏洞
CVE-2022-25134 TotoLink routers 命令注入漏洞
CVE-2022-25135 TotoLink routers 命令注入漏洞
CVE-2022-25133 TotoLink routers 命令注入漏洞
CVE-2021-46110 Online Shopping Portal 安全漏洞
CVE-2021-46082 Moxa Tn-5900 安全漏洞
CVE-2021-46063 MingSoft MCMS 代码代码注入漏洞
CVE-2021-40841 LiveConfig 路径遍历漏洞
CVE-2021-46037 MingSoft MCMS 安全漏洞
CVE-2021-46036 MingSoft MCMS 代码问题漏洞
CVE-2021-30650 Broadcom Symantec Layer7 API Management OAuth Toolkit跨站脚本漏洞
CVE-2020-8242 Packet Tide ExpressionEngine 安全漏洞
CVE-2021-3947 QEMU 缓冲区错误漏洞
CVE-2021-3930 QEMU 安全漏洞
CVE-2021-20325 Red Hat Enterprise Linux 代码问题漏洞
CVE-2021-20322 Linux kernel 安全特征问题漏洞
CVE-2021-20321 Linux kernel 竞争条件问题漏洞

Showing top 20 of 67 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: isync
Same vendor: n/a
Same weakness: CWE-119

V. Comments for CVE-2021-3657

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