CVE-2015-8779: canonical ubuntu_linux
Vulnerability summary
CVE-2015-8779 is a critical (CVSS 9.8) vulnerability in canonical ubuntu_linux. EPSS estimates a 6.21% chance of exploitation in the next 30 days, higher than 93.5% of scored vulnerabilities.
Severe, CVSS 9.8 (NVD); no exploitation reported by the 5 checked sources; EPSS 6% (FIRST, 03-11-2026)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 12 · Related 6Timeline
- 19-04-2016PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
Stack-based buffer overflow in the catopen function in the GNU C Library (aka glibc or libc6) before 2.23 allows context-dependent attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a long catalog name.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
6.21%
Chance of exploitation in the next 30 days
Percentile
94%
Versus all other CVEs
30-day change
No change 0.00 pp
From 6.21% 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.
Suse5 products
- linux_enterprise_debuginfo11:sp2 | 11:sp3 | 11:sp4
- linux_enterprise_desktop11:sp3 | 11:sp4 | 12 | 12:sp1
- linux_enterprise_server11:sp2 | 11:sp3 | 11:sp4 | 12:sp1
- linux_enterprise_software_development_kit11:sp3 | 11:sp4 | 12 | 12:sp1
- suse_linux_enterprise_server12
Debian2 products
- glibc< 2.21-7
- debian_linuxEOL8.0
Canonical1 product
- ubuntu_linuxEOL12.04 | 14.04 | 15.10
Fedoraproject1 product
- fedoraEOL23
Gnu1 product
- glibc≤ 2.22
Opensuse1 product
- opensuseEOL13.2
Ubuntu1 product
- eglibc< 2.19-0ubuntu6.8
7 vendors · 12 products
References
26 links- lists.fedoraproject.org/pipermail/package-announce/2016-May/184626.htmlVendor AdvisoryX Refsource FEDORA
Show all 26 references
- sourceware.org/bugzilla/show_bug.cgi?id=17905X Refsource CONFIRM