CVE-2015-8984: gnu glibc Out-of-bounds Read
Vulnerability summary
CVE-2015-8984 is a medium (CVSS 5.9) Out-of-bounds Read vulnerability in gnu glibc. EPSS estimates a 2.44% chance of exploitation in the next 30 days, higher than 84.3% of scored vulnerabilities.
Not severe (CVSS 5.9, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 2 · Related 1Timeline
- 20-03-2017PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
The fnmatch function in the GNU C Library (aka glibc or libc6) before 2.22 might allow context-dependent attackers to cause a denial of service (application crash) via a malformed pattern, which triggers an out-of-bounds read.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated5.9MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.9MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
2.44%
Chance of exploitation in the next 30 days
Percentile
84%
Versus all other CVEs
30-day change
Increase +0.02 pp
From 2.42% 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
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Debian1 product
- glibc< 2.21-1
Gnu1 product
- glibc≤ 2.21
Ubuntu1 product
- eglibc< 2.19-0ubuntu6.10
3 vendors · 3 products
References
11 links- www.openwall.com/lists/oss-security/2017/02/14/9Mailing ListX Refsource MLISTPatchThird Party Advisory
- www.openwall.com/lists/oss-security/2015/02/26/5Mailing ListX Refsource MLISTPatchThird Party AdvisoryREPORT
