5.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
0.001 Low
EPSS
Percentile
44.9%
SAML Service Providers using this library for SAML authentication support are likely susceptible to Denial of Service attacks. A bug in this library enables attackers to craft a deflate
-compressed request which will consume significantly more memory during processing than the size of the original request. This may eventually lead to memory exhaustion and the process being killed.
The maximum compression ratio achievable with deflate
is 1032:1, so by limiting the size of bodies passed to gosaml2, limiting the rate and concurrency of calls, and ensuring that lots of memory is available to the process it may be possible to help Go’s garbage collector “keep up”.
Implementors are encouraged not to rely on this.
This issue is addressed in v0.9.0
CPE | Name | Operator | Version |
---|---|---|---|
github.com/russellhaering/gosaml2 | lt | 0.9.0 |
github.com/advisories/GHSA-6gc3-crp7-25w5
github.com/russellhaering/gosaml2/commit/f9d66040241093e8702649baff50cc70d2c683c0
github.com/russellhaering/gosaml2/releases/tag/v0.9.0
github.com/russellhaering/gosaml2/security/advisories/GHSA-6gc3-crp7-25w5
nvd.nist.gov/vuln/detail/CVE-2023-26483
pkg.go.dev/vuln/GO-2023-1602