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CVE-2024-12243— Gnutls: gnutls impacted by inefficient der decoding in libtasn1 leading to remote dos

Quick assessment

Affected
CVE-2024-12243
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.

GnuTLS是一款免费的用于实现SSL、TLS和DTLS协议的安全通信库。 GnuTLS存在安全漏洞。攻击者利用该漏洞可以发送特制证书，导致 GnuTLS 变得无响应或缓慢，从而导致拒绝服务情况。

CVSS 5.3 · Medium EPSS 1.27% · P68

Possible ATT&CK Techniques 1 AI

T1499.001 · OS Exhaustion Flood

Affected Version Matrix 16

VendorProduct Version RangeStatus
None None ≤ 3.6.16 affected
3.7.0≤ 3.7.11 affected
3.8.0< 3.8.8 affected
3.8.9< * unaffected
Red Hat Red Hat Discovery 1.14 sha256:ad1045aa0de937c3a6969ec377f7bfeda9a44ee434a954e8245e9840316ffc1c< * unaffected
sha256:c960fa13577db72b52765d6941688f431f61fe38adb717b2d8bb6569e241bc5e< * unaffected
Red Hat Red Hat Enterprise Linux 10 any affected
Red Hat Red Hat Enterprise Linux 6 any unknown
Red Hat Red Hat Enterprise Linux 7 any unknown
Red Hat Red Hat Enterprise Linux 8 0:3.6.16-8.el8_10.3< * unaffected
0:3.6.16-8.el8_10.3< * unaffected
Red Hat Red Hat Enterprise Linux 9 0:3.8.3-6.el9< * unaffected
0:3.8.3-6.el9< * unaffected
Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions 0:3.7.6-21.el9_2.4< * unaffected
Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support 0:3.8.3-4.el9_4.2< * unaffected
Red Hat Red Hat OpenShift Container Platform 4 any affected

I. Basic Information for CVE-2024-12243

Vulnerability Information
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Vulnerability Title
Gnutls: gnutls impacted by inefficient der decoding in libtasn1 leading to remote dos
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in GnuTLS, which relies on libtasn1 for ASN.1 data processing. Due to an inefficient algorithm in libtasn1, decoding certain DER-encoded certificate data can take excessive time, leading to increased resource consumption. This flaw allows a remote attacker to send a specially crafted certificate, causing GnuTLS to become unresponsive or slow, resulting in a denial-of-service condition.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
算法复杂性
Source: CVE Program / CVE List V5
Vulnerability Title
GnuTLS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GnuTLS是一款免费的用于实现SSL、TLS和DTLS协议的安全通信库。 GnuTLS存在安全漏洞。攻击者利用该漏洞可以发送特制证书，导致 GnuTLS 变得无响应或缓慢，从而导致拒绝服务情况。
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
- - 0 ~ 3.6.16 -
Red Hat Red Hat Enterprise Linux 8 0:3.6.16-8.el8_10.3 ~ * cpe:/o:redhat:enterprise_linux:8::baseos
Red Hat Red Hat Enterprise Linux 8 0:3.6.16-8.el8_10.3 ~ * cpe:/o:redhat:enterprise_linux:8::baseos
Red Hat Red Hat Enterprise Linux 9 0:3.8.3-6.el9 ~ * cpe:/a:redhat:enterprise_linux:9::appstream
Red Hat Red Hat Enterprise Linux 9 0:3.8.3-6.el9 ~ * cpe:/a:redhat:enterprise_linux:9::appstream
Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions 0:3.7.6-21.el9_2.4 ~ * cpe:/a:redhat:rhel_e4s:9.2::appstream
Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support 0:3.8.3-4.el9_4.2 ~ * cpe:/o:redhat:rhel_eus:9.4::baseos
Red Hat Red Hat Discovery 1.14 sha256:ad1045aa0de937c3a6969ec377f7bfeda9a44ee434a954e8245e9840316ffc1c ~ * cpe:/a:redhat:discovery:1.14::el9
Red Hat Red Hat Discovery 1.14 sha256:c960fa13577db72b52765d6941688f431f61fe38adb717b2d8bb6569e241bc5e ~ * cpe:/a:redhat:discovery:1.14::el9
Red Hat Red Hat Enterprise Linux 10 - cpe:/o:redhat:enterprise_linux:10
Red Hat Red Hat Enterprise Linux 6 - cpe:/o:redhat:enterprise_linux:6
Red Hat Red Hat Enterprise Linux 7 - cpe:/o:redhat:enterprise_linux:7
Red Hat Red Hat OpenShift Container Platform 4 - cpe:/a:redhat:openshift:4

II. Public POCs for CVE-2024-12243

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III. Intelligence Information for CVE-2024-12243

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Vendor Advisories for CVE-2024-12243 (6)

Other References for CVE-2024-12243 (1)

IV. Related Vulnerabilities

Same weakness: CWE-407

V. Comments for CVE-2024-12243

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