CVE-2019-6471: f5 big-ip_access_policy_manager Race Condition
CVSS: 5.9v3.0MediumModified
AliasesALPINE-CVE-2019-6471SUSE-SU-2019:2550-1RHSA-2019:1714UBUNTU-CVE-2019-6471USN-4026-1DEBIAN-CVE-2019-6471CGA-mf84-vggx-gm9xCGA-pp3q-6vhf-hg6ropenSUSE-SU-2019:2263-1openSUSE-SU-2019:2265-1
Published 09-10-2019Last modified 17-09-2024
Vulnerability summary
CVE-2019-6471 is a medium (CVSS 5.9) Race Condition vulnerability in f5 big-ip_access_policy_manager. EPSS estimates a 3.30% chance of exploitation in the next 30 days, higher than 88.3% of scored vulnerabilities.
CVSS score
5.9/10
010
Medium · v3.0 (CVE.org)EPSS score
3.30%
0%100%
Low · 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 3 · Related 4Timeline
- 09-10-2019PublishedVulnerability first disclosed.
- 17-09-2024Last modifiedVulnerability information updated.
Description
A race condition which may occur when discarding malformed packets can result in BIND exiting due to a REQUIRE assertion failure in dispatch.c. Versions affected: BIND 9.11.0 -> 9.11.7, 9.12.0 -> 9.12.4-P1, 9.14.0 -> 9.14.2. Also all releases of the BIND 9.13 development branch and version 9.15.0 of the BIND 9.15 development branch and BIND Supported Preview Edition versions 9.11.3-S1 -> 9.11.7-S1.
CVSS metrics
11 scores · 8 sources · 3 versionsMedium 5.9Preferred score · OSV · Alpine (Ecosystem advisory) · calculated from vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 6 agree
- OSV · UbuntuEcosystem advisory · calculated5.9MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.9MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · WolfiEcosystem advisory · calculated5.9MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · ChainguardEcosystem advisory · calculated5.9MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVDNIST5.9MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Medium 5.9Preferred score · CVE.org (CNA)
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 4 agree
- OSV · Red hatEcosystem advisory · calculated5.9MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · UbuntuEcosystem advisory · calculated5.9MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVDNIST5.9MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Medium 4.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
3.30%
Chance of exploitation in the next 30 days
Percentile
88%
Versus all other CVEs
30-day change
0.00 pp
From 3.30% on 18-09-2026
18-09-202618-10-2026
EPSS score3.30%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.
- CWE-617Reachable AssertionThe product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary.
Affected systems
Redhat27 products
- bind< 32:9.11.4-17.P2.el8_0.1
- bind-chroot< 32:9.11.4-17.P2.el8_0.1
- bind-debuginfo< 32:9.11.4-17.P2.el8_0.1
- bind-debugsource< 32:9.11.4-17.P2.el8_0.1
- bind-devel< 32:9.11.4-17.P2.el8_0.1
F516 products
- big-ip_access_policy_manager≥ 11.5.2, ≤ 11.5.9 | ≥ 11.6.1, ≤ 11.6.4 | ≥ 12.1.0, ≤ 12.1.4 | ≥ 13.1.0, ≤ 13.1.1 | 14.0.0 | 14.1.0 | 15.0.0
- big-ip_advanced_firewall_manager≥ 11.5.2, ≤ 11.5.9 | ≥ 11.6.1, ≤ 11.6.4 | ≥ 12.1.0, ≤ 12.1.4 | ≥ 13.1.0, ≤ 13.1.1 | 14.0.0 | 14.1.0 | 15.0.0
- big-ip_analytics≥ 11.5.2, ≤ 11.5.9 | ≥ 11.6.1, ≤ 11.6.4 | ≥ 12.1.0, ≤ 12.1.4 | ≥ 13.1.0, ≤ 13.1.1 | 14.0.0 | 14.1.0 | 15.0.0
- big-ip_application_acceleration_manager≥ 11.5.2, ≤ 11.5.9 | ≥ 11.6.1, ≤ 11.6.4 | ≥ 12.1.0, ≤ 12.1.4 | ≥ 13.1.0, ≤ 13.1.1 | 14.0.0 | 14.1.0 | 15.0.0
- big-ip_application_security_manager≥ 11.5.2, ≤ 11.5.9 | ≥ 11.6.1, ≤ 11.6.4 | ≥ 12.1.0, ≤ 12.1.4 | ≥ 13.1.0, ≤ 13.1.1 | 14.0.0 | 14.1.0 | 15.0.0
Suse4 products
- bind&distro=SUSE Linux Enterprise Module for Basesystem 15< 9.11.2-12.13.2
- bind&distro=SUSE Linux Enterprise Module for Basesystem 15 SP1< 9.11.2-12.13.2
- bind&distro=SUSE Linux Enterprise Module for Server Applications 15< 9.11.2-12.13.2
- bind&distro=SUSE Linux Enterprise Module for Server Applications 15 SP1< 9.11.2-12.13.2
Isc2 products
- bind≥ 9.11.0, ≤ 9.11.7 | ≥ 9.12.0, ≤ 9.12.3 | ≥ 9.13.0, ≤ 9.13.7 | ≥ 9.14.0, ≤ 9.14.2 | ≥ 9.15.0, ≤ 9.15.5 | 9.11.3:s1 | 9.11.7:s1 | 9.12.4 | 9.12.4:p1
- bind 9BIND 9.11.0 -> 9.11.7, 9.12.0 -> 9.12.4-P1, 9.14.0 -> 9.14.2. Also all releases of the BIND 9.13 development branch and version 9.15.0 of the BIND 9.15 development branch and BIND Supported Preview Edition versions 9.11.3-S1 -> 9.11.7-S1.
Opensuse2 products
- bind&distro=openSUSE Leap 15.0< 9.11.2-lp150.8.16.1
- bind&distro=openSUSE Leap 15.1< 9.11.2-lp151.11.6.1
Alpine1 product
- bind≥ 9.11.0, < 9.14.3-r0 | ≥ 9.11.0, < 9.14.4-r0 | ≥ 9.11.0, < 9.11.8-r0 | ≥ 9.11.0, < 9.12.4_p2-r0
Chainguard1 product
- bindAll versions (No fix recorded)
Debian1 product
- bind9< 1:9.11.5.P4+dfsg-5.1
Ubuntu1 product
- bind9< 1:9.11.3+dfsg-1ubuntu1.8
Wolfi1 product
- bindAll versions (No fix recorded)
10 vendors · 56 products
References
20 links- support.f5.com/csp/article/K10092301?utm_source=f5support&%3Butm_medium=RSSX Refsource CONFIRMWEB
Show all 20 references
- lists.opensuse.org/archives/…Advisory
- lists.opensuse.org/archives/…Advisory