Gstreamer1-plugins-bad-free: gstreamer: dtls certificate subject dn stack buffer overflow in openssl_verify_callback
Priority MEDIUM 40CWE-121Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 20 fixed, 2 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-121 and the CVSS impact.
Summary
A stack buffer overflow vulnerability was found in GStreamer's DTLS plugin. During a DTLS handshake, the peer certificate Subject Distinguished Name is printed into a fixed-size 2048-byte stack buffer without bounds checking. A remote unauthenticated attacker can send a certificate with an oversized Subject DN that exceeds the buffer, causing a stack buffer overflow and process crash, resulting in denial of service.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00577 47th percentileScored 2026-11-07
Fix Partial Red Hat: 11 advisoriesRed Hat: 20 fixed, 2 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | — | 1.26.7-2.el10_2.6 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support | — | 1.24.11-3.el10_0.6 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 7 Extended Lifecycle Support | — | 1.10.4-7.el7_9 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8 | — | 1.16.1-9.el8_10.1 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | — | 1.16.1-4.el8_4.4 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | — | 1.16.1-4.el8_4.4 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | — | 1.16.1-4.el8_6.4 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On | — | 1.16.1-4.el8_6.4 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service | — | 1.16.1-4.el8_8.4 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | — | 1.16.1-4.el8_8.4 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 9 | — | 1.22.12-7.el9_8.3 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | — | 1.18.4-9.el9_2.5 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions | — | 1.22.1-6.el9_4.6 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support | — | 1.22.12-5.el9_6.6 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 6 | — | — | No fix listed | CNA |
| Red Hat | Red Hat Enterprise Linux 7 | — | — | No fix listed | CNA |
- Red Hat Enterprise Linux 10 VendorRed Hat Affected — Fixed in 1.26.7-2.el10_2.6 Patch available CNA
- Red Hat Enterprise Linux 10.0 Extended Update Support VendorRed Hat Affected — Fixed in 1.24.11-3.el10_0.6 Patch available CNA
- Red Hat Enterprise Linux 7 Extended Lifecycle Support VendorRed Hat Affected — Fixed in 1.10.4-7.el7_9 Patch available CNA
- Red Hat Enterprise Linux 8 VendorRed Hat Affected — Fixed in 1.16.1-9.el8_10.1 Patch available CNA
- Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support VendorRed Hat Affected — Fixed in 1.16.1-4.el8_4.4 Patch available CNA
- Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On VendorRed Hat Affected — Fixed in 1.16.1-4.el8_4.4 Patch available CNA
- Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support VendorRed Hat Affected — Fixed in 1.16.1-4.el8_6.4 Patch available CNA
- Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On VendorRed Hat Affected — Fixed in 1.16.1-4.el8_6.4 Patch available CNA
- Red Hat Enterprise Linux 8.8 Telecommunications Update Service VendorRed Hat Affected — Fixed in 1.16.1-4.el8_8.4 Patch available CNA
- Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions VendorRed Hat Affected — Fixed in 1.16.1-4.el8_8.4 Patch available CNA
- Red Hat Enterprise Linux 9 VendorRed Hat Affected — Fixed in 1.22.12-7.el9_8.3 Patch available CNA
- Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions VendorRed Hat Affected — Fixed in 1.18.4-9.el9_2.5 Patch available CNA
- Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions VendorRed Hat Affected — Fixed in 1.22.1-6.el9_4.6 Patch available CNA
- Red Hat Enterprise Linux 9.6 Extended Update Support VendorRed Hat Affected — Fixed in 1.22.12-5.el9_6.6 Patch available CNA
- Red Hat Enterprise Linux 6 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Red Hat Enterprise Linux 7 VendorRed Hat Affected — Fixed in — No fix listed CNA
CPE names CNA · 18
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:/o:redhat:enterprise_linux:10.2 | 10.2 | — | Red Hat |
| cpe:/o:redhat:enterprise_linux_eus:10.0 | 10.0 | — | Red Hat |
| cpe:/o:redhat:rhel_els:7 | 7 | — | Red Hat |
| cpe:/a:redhat:enterprise_linux:8::appstream | 8 | — | Red Hat |
| cpe:/a:redhat:enterprise_linux:8::crb | 8 | — | Red Hat |
| cpe:/a:redhat:rhel_aus:8.4::appstream | 8.4 | — | Red Hat |
| cpe:/a:redhat:rhel_eus_long_life:8.4::appstream | 8.4 | — | Red Hat |
| cpe:/a:redhat:rhel_aus:8.6::appstream | 8.6 | — | Red Hat |
| cpe:/a:redhat:rhel_eus_long_life:8.6::appstream | 8.6 | — | Red Hat |
| cpe:/a:redhat:rhel_e4s:8.8::appstream | 8.8 | — | Red Hat |
- cpe:/o:redhat:enterprise_linux:10.2 Versions 10.2 — ·Red Hat
- cpe:/o:redhat:enterprise_linux_eus:10.0 Versions 10.0 — ·Red Hat
- cpe:/o:redhat:rhel_els:7 Versions 7 — ·Red Hat
- cpe:/a:redhat:enterprise_linux:8::appstream Versions 8 — ·Red Hat
- cpe:/a:redhat:enterprise_linux:8::crb Versions 8 — ·Red Hat
- cpe:/a:redhat:rhel_aus:8.4::appstream Versions 8.4 — ·Red Hat
- cpe:/a:redhat:rhel_eus_long_life:8.4::appstream Versions 8.4 — ·Red Hat
- cpe:/a:redhat:rhel_aus:8.6::appstream Versions 8.6 — ·Red Hat
- cpe:/a:redhat:rhel_eus_long_life:8.6::appstream Versions 8.6 — ·Red Hat
- cpe:/a:redhat:rhel_e4s:8.8::appstream Versions 8.8 — ·Red Hat
Show 8 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:/a:redhat:rhel_tus:8.8::appstream | 8.8 | — | Red Hat |
| cpe:/a:redhat:enterprise_linux:9::appstream | 9 | — | Red Hat |
| cpe:/a:redhat:enterprise_linux:9::crb | 9 | — | Red Hat |
| cpe:/a:redhat:rhel_e4s:9.2::appstream | 9.2 | — | Red Hat |
| cpe:/a:redhat:rhel_e4s:9.4::appstream | 9.4 | — | Red Hat |
| cpe:/a:redhat:rhel_eus:9.6::appstream | 9.6 | — | Red Hat |
| cpe:/a:redhat:rhel_eus:9.6::crb | 9.6 | — | Red Hat |
| cpe:/o:redhat:rhel_els:6 | 6 | — | Red Hat |
- cpe:/a:redhat:rhel_tus:8.8::appstream Versions 8.8 — ·Red Hat
- cpe:/a:redhat:enterprise_linux:9::appstream Versions 9 — ·Red Hat
- cpe:/a:redhat:enterprise_linux:9::crb Versions 9 — ·Red Hat
- cpe:/a:redhat:rhel_e4s:9.2::appstream Versions 9.2 — ·Red Hat
- cpe:/a:redhat:rhel_e4s:9.4::appstream Versions 9.4 — ·Red Hat
- cpe:/a:redhat:rhel_eus:9.6::appstream Versions 9.6 — ·Red Hat
- cpe:/a:redhat:rhel_eus:9.6::crb Versions 9.6 — ·Red Hat
- cpe:/o:redhat:rhel_els:6 Versions 6 — ·Red Hat
Remediation
Red Hat 11 advisories
- RHSA-2026:56772 Released 2026-08-19 · Red Hat rating Importantgstreamer1-plugins-bad-free security update
- Red Hat Enterprise Linux AppStream AUS (v.8.4) gstreamer1-plugins-bad-free-1.16.1-4.el8_4.4
- Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) gstreamer1-plugins-bad-free-1.16.1-4.el8_4.4
- RHSA-2026:56658 Released 2026-08-19 · Red Hat rating Importantgstreamer1-plugins-bad-free security update
- Red Hat Enterprise Linux AppStream E4S (v.9.2) gstreamer1-plugins-bad-free-1.18.4-9.el9_2.5
- RHSA-2026:54752 Released 2026-08-14 · Red Hat rating Importantgstreamer1-plugins-bad-free security update
- Red Hat Enterprise Linux Server (v. 7 ELS) gstreamer1-plugins-bad-free-1.10.4-7.el7_9, gstreamer1-plugins-bad-free-1.10.4-7.el7_9.ppc
- Red Hat Enterprise Linux Server Optional (v. 7 ELS) gstreamer1-plugins-bad-free-devel-1.10.4-7.el7_9, gstreamer1-plugins-bad-free-devel-1.10.4-7.el7_9.ppc, gstreamer1-plugins-bad-free-gtk-1.10.4-7.el7_9 +1
Show 8 more Red Hat advisories
- RHSA-2026:54664 Released 2026-08-13 · Red Hat rating Importantgstreamer1-plugins-bad-free security update
- Red Hat Enterprise Linux AppStream E4S (v.8.8) gstreamer1-plugins-bad-free-1.16.1-4.el8_8.4
- Red Hat Enterprise Linux AppStream TUS (v.8.8) gstreamer1-plugins-bad-free-1.16.1-4.el8_8.4
- RHSA-2026:54660 Released 2026-08-13 · Red Hat rating Importantgstreamer1-plugins-bad-free security update
- Red Hat CodeReady Linux Builder EUS (v.9.6) gstreamer1-plugins-bad-free-devel-1.22.12-5.el9_6.6
- Red Hat Enterprise Linux AppStream EUS (v.9.6) gstreamer1-plugins-bad-free-1.22.12-5.el9_6.6, gstreamer1-plugins-bad-free-libs-1.22.12-5.el9_6.6
- RHSA-2026:54658 Released 2026-08-13 · Red Hat rating Importantgstreamer1-plugins-bad-free security update
- Red Hat Enterprise Linux AppStream E4S (v.9.4) gstreamer1-plugins-bad-free-1.22.1-6.el9_4.6
- RHSA-2026:54665 Released 2026-08-13 · Red Hat rating Importantgstreamer1-plugins-bad-free security update
- Red Hat Enterprise Linux AppStream AUS (v.8.6) gstreamer1-plugins-bad-free-1.16.1-4.el8_6.4
- Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6) gstreamer1-plugins-bad-free-1.16.1-4.el8_6.4
- RHSA-2026:54659 Released 2026-08-13 · Red Hat rating Importantgstreamer1-plugins-bad-free security update
- Red Hat Enterprise Linux AppStream EUS (v. 10.0) gstreamer1-plugins-bad-free-1.24.11-3.el10_0.6, gstreamer1-plugins-bad-free-libs-1.24.11-3.el10_0.6
- Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) gstreamer1-plugins-bad-free-devel-1.24.11-3.el10_0.6
- RHSA-2026:47179 Released 2026-08-03 · Red Hat rating Importantgstreamer1-plugins-bad-free security update
- Red Hat Enterprise Linux AppStream (v. 9) gstreamer1-plugins-bad-free-1.22.12-7.el9_8.3, gstreamer1-plugins-bad-free-libs-1.22.12-7.el9_8.3
- Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) gstreamer1-plugins-bad-free-devel-1.22.12-7.el9_8.3
- RHSA-2026:47731 Released 2026-07-30 · Red Hat rating Importantgstreamer1-plugins-bad-free security update
- Red Hat Enterprise Linux AppStream (v. 8) gstreamer1-plugins-bad-free-1.16.1-9.el8_10.1
- Red Hat Enterprise Linux CRB (v. 8) gstreamer1-plugins-bad-free-devel-1.16.1-9.el8_10.1
- RHSA-2026:47180 Released 2026-07-28 · Red Hat rating Importantgstreamer1-plugins-bad-free security update
- Red Hat Enterprise Linux AppStream (v. 10) gstreamer1-plugins-bad-free-1.26.7-2.el10_2.6, gstreamer1-plugins-bad-free-libs-1.26.7-2.el10_2.6
- Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) gstreamer1-plugins-bad-free-devel-1.26.7-2.el10_2.6
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support and 13 more products — RHSA-2026:47179
2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2026-42567 Gstreamer1-plugins-bad-free: gstreamer: rfbsrc/librfb hextile heap out-of-bounds write with 16bpp framebufferPriority LOW 31
- Advisory ·
Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support and 13 more products — RHSA-2026:47180
2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2026-42567 Gstreamer1-plugins-bad-free: gstreamer: rfbsrc/librfb hextile heap out-of-bounds write with 16bpp framebufferPriority LOW 31
Show 9 more groups
- Advisory ·
Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support and 13 more products — RHSA-2026:47731
2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2026-42567 Gstreamer1-plugins-bad-free: gstreamer: rfbsrc/librfb hextile heap out-of-bounds write with 16bpp framebufferPriority LOW 31
- Advisory ·
Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support and 13 more products — RHSA-2026:54658
2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2026-42567 Gstreamer1-plugins-bad-free: gstreamer: rfbsrc/librfb hextile heap out-of-bounds write with 16bpp framebufferPriority LOW 31
- Advisory ·
Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support and 13 more products — RHSA-2026:54659
2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2026-42567 Gstreamer1-plugins-bad-free: gstreamer: rfbsrc/librfb hextile heap out-of-bounds write with 16bpp framebufferPriority LOW 31
- Advisory ·
Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support and 13 more products — RHSA-2026:54660
2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2026-42567 Gstreamer1-plugins-bad-free: gstreamer: rfbsrc/librfb hextile heap out-of-bounds write with 16bpp framebufferPriority LOW 31
- Advisory ·
Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support and 13 more products — RHSA-2026:54664
2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2026-42567 Gstreamer1-plugins-bad-free: gstreamer: rfbsrc/librfb hextile heap out-of-bounds write with 16bpp framebufferPriority LOW 31
- Advisory ·
Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support and 13 more products — RHSA-2026:54665
2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2026-42567 Gstreamer1-plugins-bad-free: gstreamer: rfbsrc/librfb hextile heap out-of-bounds write with 16bpp framebufferPriority LOW 31
- Advisory ·
Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support and 13 more products — RHSA-2026:54752
2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2026-42567 Gstreamer1-plugins-bad-free: gstreamer: rfbsrc/librfb hextile heap out-of-bounds write with 16bpp framebufferPriority LOW 31
- Advisory ·
Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support and 13 more products — RHSA-2026:56658
2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2026-42567 Gstreamer1-plugins-bad-free: gstreamer: rfbsrc/librfb hextile heap out-of-bounds write with 16bpp framebufferPriority LOW 31
- Advisory ·
Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support and 13 more products — RHSA-2026:56772
2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2026-42567 Gstreamer1-plugins-bad-free: gstreamer: rfbsrc/librfb hextile heap out-of-bounds write with 16bpp framebufferPriority LOW 31
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Will not fix |
| Red Hat CodeReady Linux Builder EUS (v.9.6) | Fixed | RHSA-2026:54660 |
| Red Hat Enterprise Linux AppStream (v. 10) | Fixed | RHSA-2026:47180 |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2026:47731 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2026:47179 |
| Red Hat Enterprise Linux AppStream AUS (v.8.4) | Fixed | RHSA-2026:56772 |
| Red Hat Enterprise Linux AppStream AUS (v.8.6) | Fixed | RHSA-2026:54665 |
| Red Hat Enterprise Linux AppStream E4S (v.8.8) | Fixed | RHSA-2026:54664 |
| Red Hat Enterprise Linux AppStream E4S (v.9.2) | Fixed | RHSA-2026:56658 |
| Red Hat Enterprise Linux AppStream E4S (v.9.4) | Fixed | RHSA-2026:54658 |
| Red Hat Enterprise Linux AppStream EUS (v. 10.0) | Fixed | RHSA-2026:54659 |
| Red Hat Enterprise Linux AppStream EUS (v.9.6) | Fixed | RHSA-2026:54660 |
| Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) | Fixed | RHSA-2026:56772 |
| Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6) | Fixed | RHSA-2026:54665 |
| Red Hat Enterprise Linux AppStream TUS (v.8.8) | Fixed | RHSA-2026:54664 |
| Red Hat Enterprise Linux CRB (v. 8) | Fixed | RHSA-2026:47731 |
| Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) | Fixed | RHSA-2026:47180 |
| Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) | Fixed | RHSA-2026:47179 |
| Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) | Fixed | RHSA-2026:54659 |
| Red Hat Enterprise Linux Server (v. 7 ELS) | Fixed | RHSA-2026:54752 |
| Red Hat Enterprise Linux Server Optional (v. 7 ELS) | Fixed | RHSA-2026:54752 |
Timeline
- 2026-10-02 Threatist record created from CVE-2026-59692
- 2026-10-03 Alias added: GHSA-f48p-mg4r-fhww
- 2026-10-16 EPSS moved to the below the 50th percentile
References
Advisory 11
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Sources
- CVE-2026-59692 · CVE Program
- CVE-2026-59692 · NVD
- FIRST EPSS
- GHSA-f48p-mg4r-fhww · GitHub Advisory Database · CC BY 4.0
- CVE-2026-59692 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences