CVE & CISA-KEV CatalogNVD
CVE-2023-27493
HIGH8.1
CVSS v3
Description
Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to versions 1.26.0, 1.25.3, 1.24.4, 1.23.6, and 1.22.9, Envoy does not sanitize or escape request properties when generating request headers. This can lead to characters that are illegal in header values to be sent to the upstream service. In the worst case, it can cause upstream service to interpret the original request as two pipelined requests, possibly bypassing the intent of Envoy’s security policy. Versions 1.26.0, 1.25.3, 1.24.4, 1.23.6, and 1.22.9 contain a patch. As a workaround, disable adding request headers based on the downstream request properties, such as downstream certificate properties.
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
ConfidentialityHigh
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Exploit Intelligence
0.51%probability of exploitation in 30 days
40thpercentile
Low risk: more likely to be exploited than 40% of all known CVEs.
References
Exploit1
Related Vulnerabilities
Other CWE-20 (Improper Input Validation) vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2024-3400 | Critical | 10.0 | 100% | KEV + Ransom | - |
| CVE-2021-45105 | Medium | 5.9 | 100% | - | Fix |
| CVE-2021-44228 | Critical | 10.0 | 100% | KEV + Ransom | Fix |
| CVE-2021-21985 | Critical | 9.8 | 100% | KEV + Ransom | Fix |
| CVE-2018-7600 | Critical | 9.8 | 100% | KEV + Ransom | Fix |
| CVE-2020-3452 | High | 7.5 | 100% | KEV | Fix |
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Start freeThis 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.