CVE-2017-17439
Quick assessment
Affected
n/a n/a
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.
Heimdal是一个Kerberos 5的实现。 Heimdal 7.1.0版本中存在安全漏洞。远程攻击者可通过发送特制的UDP数据包利用该漏洞造成拒绝服务（崩溃、空指针逆向引用和段错误）。
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I. Basic Information for CVE-2017-17439
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
In Heimdal through 7.4, remote unauthenticated attackers are able to crash the KDC by sending a crafted UDP packet containing empty data fields for client name or realm. The parser would unconditionally dereference NULL pointers in that case, leading to a segmentation fault. This is related to the _kdc_as_rep function in kdc/kerberos5.c and the der_length_visible_string function in lib/asn1/der_length.c.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Heimdal 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Heimdal是一个Kerberos 5的实现。 Heimdal 7.1.0版本中存在安全漏洞。远程攻击者可通过发送特制的UDP数据包利用该漏洞造成拒绝服务（崩溃、空指针逆向引用和段错误）。
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 |
|---|---|---|---|---|
| - | n/a | n/a | - |
|
II. Public POCs for CVE-2017-17439
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2017-17439 (1)
Vendor Advisories for CVE-2017-17439 (2)
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https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=878144 x_refsource_CONFIRM
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Other References for CVE-2017-17439 (4)
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http://www.h5l.org/pipermail/heimdal-announce/2017-December/000008.html x_refsource_CONFIRM
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http://h5l.org/advisories.html?show=2017-12-08 x_refsource_CONFIRM
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https://github.com/heimdal/heimdal/issues/353 x_refsource_CONFIRM
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http://www.h5l.org/pipermail/heimdal-discuss/2017-August/000259.html x_refsource_MISC
Same Patch Batch · n/a · 2017-12-06 · 13 CVEs total
| CVE-2017-17068 | Auth0 auth0.js library 安全漏洞 | |
| CVE-2017-17446 | Game_Music_Emu library 安全漏洞 | |
| CVE-2017-17440 | GNU Libextractor 安全漏洞 | |
| CVE-2017-16884 | MistServer 跨站脚本漏洞 | |
| CVE-2017-17055 | Artica Web Proxy 跨站脚本漏洞 | |
| CVE-2017-17381 | QEMU 安全漏洞 | |
| CVE-2017-17069 | Amazon Audible for Windows 安全漏洞 | |
| CVE-2017-17383 | CloudBees Jenkins 跨站脚本漏洞 | |
| CVE-2017-17433 | rsync 安全漏洞 | |
| CVE-2017-17434 | rsync 安全漏洞 | |
| CVE-2017-14374 | Dell Storage Manager 安全漏洞 | |
| CVE-2017-17432 | OpenAFS 安全漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2017-17439
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