CVE-2009-5029: gnu glibc Numeric Errors
Vulnerability summary
CVE-2009-5029 is a medium (CVSS 6.8) Numeric Errors vulnerability in gnu glibc. EPSS estimates a 8.76% chance of exploitation in the next 30 days, higher than 95.1% of scored vulnerabilities. 3 public exploits are recorded.
Not severe (CVSS 6.8, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 4 · Related 1Timeline
- 02-05-2013PublishedVulnerability first disclosed.
- 07-08-2024Last modifiedVulnerability information updated.
Description
Integer overflow in the __tzfile_read function in glibc before 2.15 allows context-dependent attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted timezone (TZ) file, as demonstrated using vsftpd.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
8.76%
Chance of exploitation in the next 30 days
Percentile
95%
Versus all other CVEs
30-day change
Increase +0.69 pp
From 8.07% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
3 foundExploit Reference (sourceware.org)
Maturity: unknown
Exploit Reference (dividead.wordpress.com)
Maturity: unknown
GNU glibc - Timezone Parsing Remote Integer Overflow
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.
Debian1 product
- glibc< 2.13-24
Gnu1 product
- glibc≤ 2.14 | 2.0 | 2.0.1 | 2.0.2 | 2.0.3 | 2.0.4 | 2.0.5 | 2.0.6 | 2.1 | 2.11 | 2.1.1.6 | 2.12 | 2.13 | 2.19
2 vendors · 2 products
References
6 links- lists.grok.org.uk/pipermail/full-disclosure/2011-December/084452.htmlMailing ListX Refsource FULLDISC
- bugzilla.redhat.com/show_bug.cgi?id=761245X Refsource CONFIRM