CVE-2017-13704: canonical ubuntu_linux Improper Input Validation
CVSS: 7.5v3.0HighModified
AliasesALPINE-CVE-2017-13704UBUNTU-CVE-2017-13704DEBIAN-CVE-2017-13704
Published 02-10-2017Last modified 05-08-2024
Vulnerability summary
CVE-2017-13704 is a high (CVSS 7.5) Improper Input Validation vulnerability in canonical ubuntu_linux. EPSS estimates a 65.41% chance of exploitation in the next 30 days, higher than 99.2% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.0 (NVD)EPSS score
65.41%
0%100%
Critical · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 2Timeline
- 02-10-2017PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
In dnsmasq before 2.78, if the DNS packet size does not match the expected size, the size parameter in a memset call gets a negative value. As it is an unsigned value, memset ends up writing up to 0xffffffff zero's (0xffffffffffffffff in 64 bit platforms), making dnsmasq crash.
CVSS metrics
5 scores · 4 sources · 2 versionsHigh 7.5Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 4 agree
- OSV · AlpineEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
65.41%
Chance of exploitation in the next 30 days
Percentile
99%
Versus all other CVEs
30-day change
0.00 pp
From 65.41% on 19-09-2026
19-09-202619-10-2026
EPSS score65.41%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Redhat3 products
Debian2 products
- dnsmasq< 2.78-1
- debian_linuxEOL7.0 | 7.1 | 9.0
Alpine1 product
- dnsmasq< 2.78-r0
Canonical1 product
- ubuntu_linuxEOL14.04 | 16.04 | 17.04
Fedoraproject1 product
- fedoraEOL27
Novell1 product
- leap42.2 | 42.3
Thekelleys1 product
- dnsmasq≤ 2.77
Ubuntu1 product
- dnsmasq< 2.68-1ubuntu0.1 | < 2.75-1ubuntu0.16.04.2
8 vendors · 11 products
References
18 links- www.synology.com/support/security/Synology_SA_17_59_DnsmasqX Refsource CONFIRM
- access.redhat.com/security/vulnerabilities/3199382X Refsource CONFIRMIssue TrackingThird Party Advisory
- www.mail-archive.com/dnsmasq-discuss%40lists.thekelleys.org.uk/msg11665.htmlMailing ListX Refsource MLIST
- security.googleblog.com/2017/10/behind-masq-yet-more-dns-and-dhcp.htmlX Refsource MISCThird Party Advisory
Show all 18 references
- www.mail-archive.com/dnsmasq-discuss%40lists.thekelleys.org.uk/msg11664.htmlMailing ListX Refsource MLIST
- cert-portal.siemens.com/productcert/pdf/ssa-689071.pdfX Refsource CONFIRM
