CVE-2022-30629: Session tickets lack random ticket_age_add in crypto/tls
Vulnerability summary
CVE-2022-30629 is a low (CVSS 3.1) Use of Insufficiently Random Values vulnerability in go standard library crypto/tls. EPSS estimates a 1.21% chance of exploitation in the next 30 days, higher than 68.4% of scored vulnerabilities. 1 public exploit is recorded.
Not severe (CVSS 3.1, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 20 · Related 7Timeline
- 09-08-2022PublishedVulnerability first disclosed.
- 06-03-2026Last modifiedVulnerability information updated.
Description
Non-random values for ticket_age_add in session tickets in crypto/tls before Go 1.17.11 and Go 1.18.3 allow an attacker that can observe TLS handshakes to correlate successive connections by comparing ticket ages during session resumption.
CVSS metrics
6 scores · 6 sources · 1 version- OSV · Red hatEcosystem advisory · calculated3.1LowCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
- OSV · UbuntuEcosystem advisory · calculated3.1LowCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
- OSV · DebianEcosystem advisory · calculated3.1LowCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
- NVDNIST3.1LowCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
- OSV · AlpineEcosystem advisory · calculated3.1LowCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
EPSS trend
Probability
1.21%
Chance of exploitation in the next 30 days
Percentile
68%
Versus all other CVEs
30-day change
Increase +0.07 pp
From 1.14% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundExploit Reference (go.dev)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.
Redhat15 products
- butane< 0:0.15.0-2.rhaos4.11.el8
- butane-debuginfo< 0:0.15.0-2.rhaos4.11.el8
- butane-debugsource< 0:0.15.0-2.rhaos4.11.el8
- butane-redistributable< 0:0.15.0-2.rhaos4.11.el8
- cri-o< 0:1.24.2-4.rhaos4.11.gitd6283df.el8
Ubuntu4 products
- golang-1.13< 1.13.8-1ubuntu1~16.04.3+esm3 | < 1.13.8-1ubuntu1~18.04.4+esm1 | < 1.13.8-1ubuntu1.2 | < 1.13.8-1ubuntu2.22.04.2
- golang-1.16< 1.16.2-0ubuntu1~18.04.2+esm1 | < 1.16.2-0ubuntu1~20.04.1
- golang-1.17All versions (No fix recorded)
- golang-1.18< 1.18.1-1ubuntu1~18.04.4 | < 1.18.1-1ubuntu1~20.04.2 | < 1.18.1-1ubuntu1.1
Alpine1 product
- go≥ 1.18.0, < 1.18.4-r0
Debian1 product
- golang-1.15All versions (No fix recorded)
Go1 product
- stdlib≥ 1.18.0-0, < 1.18.3
Go standard library1 product
- crypto/tls< 1.17.11 | ≥ 1.18.0-0, < 1.18.3
Golang1 product
- go< 1.17.11 | ≥ 1.18.0, < 1.18.3
Mageia1 product
- golang< 1.17.11-1.mga8
8 vendors · 25 products
References
25 links- pkg.go.dev/vuln/GO-2022-0531Vendor Advisory
