CVE-2015-1781: canonical ubuntu_linux
Vulnerability summary
CVE-2015-1781 is a medium (CVSS 6.8) vulnerability in canonical ubuntu_linux. EPSS estimates a 5.01% chance of exploitation in the next 30 days, higher than 92.2% of scored vulnerabilities.
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 10 · Related 5Timeline
- 28-09-2015PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
Buffer overflow in the gethostbyname_r and other unspecified NSS functions in the GNU C Library (aka glibc or libc6) before 2.22 allows context-dependent attackers to cause a denial of service (crash) or execute arbitrary code via a crafted DNS response, which triggers a call with a misaligned buffer.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
5.01%
Chance of exploitation in the next 30 days
Percentile
92%
Versus all other CVEs
30-day change
No change 0.00 pp
From 5.01% 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 (CVSS vector). Other conditions: not stated in public data.
Debian3 products
- eglibc< 2.11.3-4+deb6u6
- glibc< 2.19-20
- debian_linuxEOL7.0
Suse3 products
- linux_enterprise_debuginfo11:sp3 | 11:sp4
- linux_enterprise_desktop11:sp3 | 11:sp4
- linux_enterprise_server11:sp3 | 11:sp4
Canonical1 product
- ubuntu_linuxEOL12.04 | 14.04 | 15.04
Gnu1 product
- glibc≤ 2.21
Ubuntu1 product
- eglibc< 2.19-0ubuntu6.8
5 vendors · 9 products
References
18 links- lists.opensuse.org/opensuse-security-announce/2015-08/msg00019.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- www.sourceware.org/ml/libc-alpha/2015-08/msg00609.htmlMailing ListX Refsource MLISTThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2016-02/msg00036.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.htmlX Refsource CONFIRMThird Party Advisory
- sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=2959eda9272a03386X Refsource CONFIRM
- lists.fedoraproject.org/pipermail/package-announce/2016-February/177404.htmlVendor AdvisoryX Refsource FEDORAMailing ListThird Party Advisory
