CVE-2019-17266: canonical ubuntu_linux Out-of-bounds Read
CVSS: 9.8v3.1CriticalModified
AliasesMGASA-2019-0312UBUNTU-CVE-2019-17266USN-4152-1DEBIAN-CVE-2019-17266
Published 06-10-2019Last modified 05-08-2024
Vulnerability summary
CVE-2019-17266 is a critical (CVSS 9.8) Out-of-bounds Read vulnerability in canonical ubuntu_linux. EPSS estimates a 2.78% chance of exploitation in the next 30 days, higher than 86.1% of scored vulnerabilities.
CVSS score
9.8/10
010
Critical · v3.1 (NVD)EPSS score
2.78%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 06-10-2019PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
libsoup from versions 2.65.1 until 2.68.1 have a heap-based buffer over-read because soup_ntlm_parse_challenge() in soup-auth-ntlm.c does not properly check an NTLM message's length before proceeding with a memcpy.
CVSS metrics
4 scores · 3 sources · 2 versionsCritical 9.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
High 7.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
2.78%
Chance of exploitation in the next 30 days
Percentile
86%
Versus all other CVEs
30-day change
0.00 pp
From 2.78% on 19-09-2026
19-09-202619-10-2026
EPSS score2.78%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Canonical1 product
- ubuntu_linuxEOL18.04 | 19.04
Debian1 product
- libsoup2.4< 2.68.2-1
Gnome1 product
- libsoup≥ 2.65.1, < 2.66.4 | ≥ 2.67.1, ≤ 2.68.1
Mageia1 product
- libsoup< 2.66.1-2.1.mga7
Ubuntu1 product
- libsoup2.4< 2.62.1-1ubuntu0.4
5 vendors · 5 products
References
13 links- gitlab.gnome.org/GNOME/libsoup/issues/173X Refsource MISCBroken LinkIssue TrackingThird Party Advisory
- gitlab.gnome.org/GNOME/libsoup/commit/88b7dff4467f4151afae244ea7d1223753cd05abX Refsource MISCThird Party Advisory
- github.com/Kirin-say/Vulnerabilities/blob/master/CVE-2019-17266_POC.mdX Refsource MISCThird Party Advisory
- gitlab.gnome.org/GNOME/libsoup/commit/f8a54ac85eec2008c85393f331cdd251af8266adX Refsource MISCThird Party Advisory