CVE & CISA-KEV Catalog

CVE-2023-27491

MEDIUM
5.4
CVSS v3
NVD

Description

Envoy is an open source edge and service proxy designed for cloud-native applications. Compliant HTTP/1 service should reject malformed request lines. Prior to versions 1.26.0, 1.25.3, 1.24.4, 1.23.6, and 1.22.9, There is a possibility that non compliant HTTP/1 service may allow malformed requests, potentially leading to a bypass of security policies. This issue is fixed in versions 1.26.0, 1.25.3, 1.24.4, 1.23.6, and 1.22.9.

CWE-20Improper Input ValidationCWE-444

How to fix

Remediation Available
openshift-serviceRocky
Fixed in:mesh/grafana-rhel8@sha256:1894163c4006a3c8e18cff16f1f8eaea524ab70baa657b4e5f248c6a5ba91353_amd64RHSA-2023:4623
Fixed in:mesh/pilot-rhel8@sha256:51313956891391c4b756365ec2078c13ec9b72d6097d2907361808d478a6fb4c_ppc64leRHSA-2023:4623
Fixed in:mesh/prometheus-rhel8@sha256:5b872c6fe3c03528b9ca4bc9c56d5346b695c923f82f477b4574f604fa8f3673_ppc64leRHSA-2023:4623
Fixed in:mesh/proxyv2-rhel8@sha256:29246b072bb2829c8e86b41e7ecdf8e3845d64b9f87247cf81a6088a3d040d3c_ppc64leRHSA-2023:4623
Fixed in:mesh/ratelimit-rhel8@sha256:2deec3e58640d06553b6fa82efe9e3939d3ae76f99020a9e4840a4a0cc65c091_ppc64leRHSA-2023:4623
Fixed in:mesh/proxyv2-rhel8@sha256:d8a8d11de42f5105b47b89bf715945825fa496d05aa1fcbcbd230bad2d31d59f_amd64RHSA-2023:4623
Fixed in:mesh/ratelimit-rhel8@sha256:66e212367c731d5e7d270778580658e86225a628dcc610a827517c8f18db352a_amd64RHSA-2023:4623
Fixed in:mesh/prometheus-rhel8@sha256:efbb8d27ec4cbd31194f00e47e4c8882651d41ea18eb544d6fae016a2395f8ea_amd64RHSA-2023:4623
Fixed in:mesh/grafana-rhel8@sha256:492ab85f14b73f01e03521d6b3aab76a673d31c0032d4a63ae30aed0e1cf1ed8_s390xRHSA-2023:4623
Fixed in:mesh/pilot-rhel8@sha256:357d027eb44c202d715f53a04246462ce3501646481577164b3735641d707e28_amd64RHSA-2023:4623
Fixed in:mesh/pilot-rhel8@sha256:1fac42f4073e9a296a0c16012c41a61f5a6ee0df8500515fbd33a694d29503e2_s390xRHSA-2023:4623
Fixed in:mesh/prometheus-rhel8@sha256:5da99f12e7e9ac6562f5480138366a11ed56e81af5bf2956b767357b3fd73e9f_s390xRHSA-2023:4623
Fixed in:mesh/proxyv2-rhel8@sha256:60036f920ef18e80ed97dadb25e4d6ae2e63f74e04c51e18badf22aae25a7f50_s390xRHSA-2023:4623
Fixed in:mesh/ratelimit-rhel8@sha256:58965678412910c9af83afe9f44efd37d8c99927def07fd429baa25b00919b61_s390xRHSA-2023:4623
Fixed in:mesh/grafana-rhel8@sha256:c0c950e26be89b52508a2bf8fdf7df8efd18e58bba2c7ad35940c41cda4176fd_ppc64leRHSA-2023:4623
openshift-serviceRed Hat / RHEL
Fixed in:mesh/proxyv2-rhel8@sha256:60036f920ef18e80ed97dadb25e4d6ae2e63f74e04c51e18badf22aae25a7f50_s390xRHSA-2023:4623
Fixed in:mesh/ratelimit-rhel8@sha256:58965678412910c9af83afe9f44efd37d8c99927def07fd429baa25b00919b61_s390xRHSA-2023:4623
Fixed in:mesh/grafana-rhel8@sha256:492ab85f14b73f01e03521d6b3aab76a673d31c0032d4a63ae30aed0e1cf1ed8_s390xRHSA-2023:4623
Fixed in:mesh/grafana-rhel8@sha256:c0c950e26be89b52508a2bf8fdf7df8efd18e58bba2c7ad35940c41cda4176fd_ppc64leRHSA-2023:4623
Fixed in:mesh/pilot-rhel8@sha256:51313956891391c4b756365ec2078c13ec9b72d6097d2907361808d478a6fb4c_ppc64leRHSA-2023:4623
Fixed in:mesh/prometheus-rhel8@sha256:5b872c6fe3c03528b9ca4bc9c56d5346b695c923f82f477b4574f604fa8f3673_ppc64leRHSA-2023:4623
Fixed in:mesh/proxyv2-rhel8@sha256:29246b072bb2829c8e86b41e7ecdf8e3845d64b9f87247cf81a6088a3d040d3c_ppc64leRHSA-2023:4623
Fixed in:mesh/ratelimit-rhel8@sha256:2deec3e58640d06553b6fa82efe9e3939d3ae76f99020a9e4840a4a0cc65c091_ppc64leRHSA-2023:4623
Fixed in:mesh/grafana-rhel8@sha256:1894163c4006a3c8e18cff16f1f8eaea524ab70baa657b4e5f248c6a5ba91353_amd64RHSA-2023:4623
Fixed in:mesh/pilot-rhel8@sha256:357d027eb44c202d715f53a04246462ce3501646481577164b3735641d707e28_amd64RHSA-2023:4623
Fixed in:mesh/prometheus-rhel8@sha256:efbb8d27ec4cbd31194f00e47e4c8882651d41ea18eb544d6fae016a2395f8ea_amd64RHSA-2023:4623
Fixed in:mesh/proxyv2-rhel8@sha256:d8a8d11de42f5105b47b89bf715945825fa496d05aa1fcbcbd230bad2d31d59f_amd64RHSA-2023:4623
Fixed in:mesh/ratelimit-rhel8@sha256:66e212367c731d5e7d270778580658e86225a628dcc610a827517c8f18db352a_amd64RHSA-2023:4623
Fixed in:mesh/pilot-rhel8@sha256:1fac42f4073e9a296a0c16012c41a61f5a6ee0df8500515fbd33a694d29503e2_s390xRHSA-2023:4623
Fixed in:mesh/prometheus-rhel8@sha256:5da99f12e7e9ac6562f5480138366a11ed56e81af5bf2956b767357b3fd73e9f_s390xRHSA-2023:4623
openshift-service-mesh/istioRocky
Fixed in:cni-rhel8@sha256:72792895a400d9e28f4e12737fc5eadd2d20943026c4c536cbd6508fc823f6a7_s390xRHSA-2023:4623
Fixed in:cni-rhel8@sha256:a0fffc8c8255ebe52475124f72048d54109a92c7f9e1f4256d17c35204b846d9_ppc64leRHSA-2023:4623
Fixed in:cni-rhel8@sha256:9820a5e2d80f2c9c69f4d829b63c78bcbfa75ab7b42d7722e13e76db9bd1ecda_amd64RHSA-2023:4623
openshift-service-mesh/istioRed Hat / RHEL
Fixed in:cni-rhel8@sha256:a0fffc8c8255ebe52475124f72048d54109a92c7f9e1f4256d17c35204b846d9_ppc64leRHSA-2023:4623
Fixed in:cni-rhel8@sha256:9820a5e2d80f2c9c69f4d829b63c78bcbfa75ab7b42d7722e13e76db9bd1ecda_amd64RHSA-2023:4623
Fixed in:cni-rhel8@sha256:72792895a400d9e28f4e12737fc5eadd2d20943026c4c536cbd6508fc823f6a7_s390xRHSA-2023:4623
openshift-service-mesh/istio-mustRocky
Fixed in:gather-rhel8@sha256:559ed9613b1ee4717890325c1fd05961756a45a9acd08e8036d2db6780b5dd8d_ppc64leRHSA-2023:4623
Fixed in:gather-rhel8@sha256:41bc79c9b2c3af157198b3ba094eea971d8b1f29707ccd40ae4b95e8ecd7774f_amd64RHSA-2023:4623
Fixed in:gather-rhel8@sha256:0290aac66c0f89c9faf6c29fee940f8ec3f3c9a0e126307837f9b1cd37efe8c0_s390xRHSA-2023:4623
openshift-service-mesh/istio-mustRed Hat / RHEL
Fixed in:gather-rhel8@sha256:41bc79c9b2c3af157198b3ba094eea971d8b1f29707ccd40ae4b95e8ecd7774f_amd64RHSA-2023:4623
Fixed in:gather-rhel8@sha256:559ed9613b1ee4717890325c1fd05961756a45a9acd08e8036d2db6780b5dd8d_ppc64leRHSA-2023:4623
Fixed in:gather-rhel8@sha256:0290aac66c0f89c9faf6c29fee940f8ec3f3c9a0e126307837f9b1cd37efe8c0_s390xRHSA-2023:4623

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeUnchanged

Impact

ConfidentialityLow
IntegrityLow
AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Exploit Intelligence

0.87%probability of exploitation in 30 days
54thpercentile

Moderate risk: more likely to be exploited than 54% of all known CVEs.

References

Exploit1

Related Vulnerabilities

Other CWE-20 (Improper Input Validation) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2024-3400Critical10.0100%KEV + Ransom-
CVE-2021-45105Medium5.9100%-Fix
CVE-2021-44228Critical10.0100%KEV + RansomFix
CVE-2021-21985Critical9.8100%KEV + RansomFix
CVE-2018-7600Critical9.8100%KEV + RansomFix
CVE-2020-3452High7.5100%KEVFix
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.