CVE-2022-27782: debian debian_linux Business Logic Errors
Vulnerability summary
CVE-2022-27782 is a high (CVSS 7.5) Business Logic Errors vulnerability in debian debian_linux. EPSS estimates a 3.09% chance of exploitation in the next 30 days, higher than 87.5% of scored vulnerabilities. 1 public exploit is recorded.
Advisory lineage
Upstream 0 · Downstream 12 · Related 7Timeline
- 01-06-2022PublishedVulnerability first disclosed.
- 14-10-2026Last modifiedVulnerability information updated.
Description
libcurl would reuse a previously created connection even when a TLS or SSHrelated option had been changed that should have prohibited reuse.libcurl keeps previously used connections in a connection pool for subsequenttransfers to reuse if one of them matches the setup. However, several TLS andSSH settings were left out from the configuration match checks, making themmatch too easily.
CVSS metrics
6 scores · 5 sources · 2 versions- OSV · AlpineEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS trend
Probability
3.09%
Chance of exploitation in the next 30 days
Percentile
88%
Versus all other CVEs
30-day change
+0.16 pp
From 2.93% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (hackerone.com)
Maturity: unknown
Weaknesses
CWE · root cause- CWE-840Business Logic ErrorsWeaknesses in this category identify some of the underlying problems that commonly allow attackers to manipulate the business logic of an application. Errors in business logic can be devastating to an entire application. They can be difficult to find automatically, since they typically involve legitimate use of the application's functionality. However, many business logic errors can exhibit patterns that are similar to well-understood implementation and design weaknesses.
- CWE-295Improper Certificate ValidationThe product does not validate, or incorrectly validates, a certificate.
Affected systems
Debian2 products
- curl< 7.83.1-1
- debian_linuxEOL10.0 | 11.0
Alpine1 product
- curl< 7.79.1-r2 | < 7.80.0-r2 | < 7.83.1-r0
Haxx1 product
- curl< 7.83.1
Splunk1 product
- universal_forwarder≥ 8.2.0, < 8.2.12 | ≥ 9.0.0, < 9.0.6 | 9.1.0
Ubuntu1 product
- curlAll versions (No fix recorded) | < 7.58.0-2ubuntu3.18 | < 7.68.0-1ubuntu2.11 | < 7.81.0-1ubuntu1.2
5 vendors · 6 products
References
15 links- security.netapp.com/advisory/ntap-20220609-0009/Third Party Advisory
- www.openwall.com/lists/oss-security/2023/03/20/6Mailing List