Buffer Overflow vulnerability in LibRaw linux/unix v0.20.0 allows attacker to escalate privileges via the LibRaw_buffer_datastream::gets(cha
Buffer Overflow vulnerability in LibRaw linux/unix v0.20.0 allows attacker to escalate privileges via the LibRaw_buffer_datastream::gets(char*, int) in /src/libraw/src/libraw_datastream.cpp.
- Published
- Feb 17, 2023
- Updated
- Jun 16, 2026
- EPSS
- 0.4% · 34th percentile
- CWE
- CWE-787
Sign in to follow · You’ll be notified if a followed record enters KEV, gets an exploit or is updated.
Report tools
Action score
31
Monitor
Low priority for now.
- CVSS
- 31 / 40 · 7.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.4%
CISA SSVC decision
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
Vulnrichment: CISA's decision-tree inputs.
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| libraw | libraw | cpe:2.3:a:libraw:libraw |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- libraw libraw0.20.0
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| AlmaLinux:8 | LibRaw | before 0.19.5-4.el8 | 0.19.5-4.el8 |
| AlmaLinux:8 | LibRaw-devel | before 0.19.5-4.el8 | 0.19.5-4.el8 |
| AlmaLinux:9 | LibRaw | before 0.20.2-6.el9 | 0.20.2-6.el9 |
| AlmaLinux:9 | LibRaw-devel | before 0.20.2-6.el9 | 0.20.2-6.el9 |
| Debian:10 | libraw | before 0.19.2-2+deb10u3 | 0.19.2-2+deb10u3 |
| Debian:11 | libraw | before 0.20.2-1+deb11u1 | 0.20.2-1+deb11u1 |
| Debian:12 | libraw | before 0.20.2-2.1 | 0.20.2-2.1 |
| Red Hat:enterprise_linux:7::client | LibRaw | before 0:0.19.4-2.el7_9 | 0:0.19.4-2.el7_9 |
| Red Hat:enterprise_linux:7::client | LibRaw-debuginfo | before 0:0.19.4-2.el7_9 | 0:0.19.4-2.el7_9 |
| Red Hat:enterprise_linux:7::client | LibRaw-devel | before 0:0.19.4-2.el7_9 | 0:0.19.4-2.el7_9 |
| Red Hat:enterprise_linux:7::client | LibRaw-static | before 0:0.19.4-2.el7_9 | 0:0.19.4-2.el7_9 |
| Red Hat:enterprise_linux:8::appstream | LibRaw | before 0:0.19.5-4.el8 | 0:0.19.5-4.el8 |
| Red Hat:enterprise_linux:8::appstream | LibRaw-debuginfo | before 0:0.19.5-4.el8 | 0:0.19.5-4.el8 |
| Red Hat:enterprise_linux:8::appstream | LibRaw-debugsource | before 0:0.19.5-4.el8 | 0:0.19.5-4.el8 |
| Red Hat:enterprise_linux:8::appstream | LibRaw-samples-debuginfo | before 0:0.19.5-4.el8 | 0:0.19.5-4.el8 |
| Red Hat:enterprise_linux:8::crb | LibRaw-devel | before 0:0.19.5-4.el8 | 0:0.19.5-4.el8 |
| Red Hat:enterprise_linux:9::appstream | LibRaw | before 0:0.20.2-6.el9 | 0:0.20.2-6.el9 |
| Red Hat:enterprise_linux:9::appstream | LibRaw-debuginfo | before 0:0.20.2-6.el9 | 0:0.20.2-6.el9 |
| Red Hat:enterprise_linux:9::appstream | LibRaw-debugsource | before 0:0.20.2-6.el9 | 0:0.20.2-6.el9 |
| Red Hat:enterprise_linux:9::appstream | LibRaw-samples-debuginfo | before 0:0.20.2-6.el9 | 0:0.20.2-6.el9 |
| Red Hat:enterprise_linux:9::crb | LibRaw-devel | before 0:0.20.2-6.el9 | 0:0.20.2-6.el9 |
| Rocky Linux:8 | LibRaw | before 0:0.19.5-4.el8 | 0:0.19.5-4.el8 |
| SUSE:Linux Enterprise Module for Desktop Applications 15 SP4 | libraw | before 0.20.2-150400.3.3.1 | 0.20.2-150400.3.3.1 |
| SUSE:Linux Enterprise Module for Desktop Applications 15 SP4 | libraw | before 0.20.2-150400.3.3.1 | 0.20.2-150400.3.3.1 |
+3
Same product
libraw: all recordsOther highest-scoring records for the same primary product.
- CVE-2015-8367The phase_one_correct function in Libraw before 0.17.1 allows attackers to cause memory errors and possibly execute arbitrary code, related 41Plan
- CVE-2015-8366Array index error in smal_decode_segment function in LibRaw before 0.17.1 allows context-dependent attackers to cause memory errors and poss41Plan
- CVE-2017-14265A Stack-based Buffer Overflow was discovered in xtrans_interpolate in internal/dcraw_common.cpp in LibRaw before 0.18.3.40Plan
- CVE-2017-6886An error within the "parse_tiff_ifd()" function (internal/dcraw_common.cpp) in LibRaw versions before 0.18.2 can be exploited to corrupt mem40Plan
- CVE-2026-24450An integer overflow vulnerability exists in the uncompressed_fp_dng_load_raw functionality of LibRaw Commit 8dc68e2.39Monitor
- CVE-2026-21413A heap-based buffer overflow vulnerability exists in the lossless_jpeg_load_raw functionality of LibRaw Commit 0b56545 and Commit d20315b.39Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| almalinux:LibRaw | 0.20.2-6.el9 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:LibRaw-devel | 0.20.2-6.el9 · AlmaLinux:9 | Package registry (OSV) |
| debian:libraw | 0.20.2-2.1 · Debian:12 | Package registry (OSV) |
| opensuse:libraw | 0.18.9-150000.3.17.1 · openSUSE:Leap 15.4 | Package registry (OSV) |
| red hat:LibRaw | 0:0.20.2-6.el9 · Red Hat:enterprise_linux:9::appstream | Package registry (OSV) |
| red hat:LibRaw-debuginfo | 0:0.20.2-6.el9 · Red Hat:enterprise_linux:9::appstream | Package registry (OSV) |
| red hat:LibRaw-debugsource | 0:0.20.2-6.el9 · Red Hat:enterprise_linux:9::appstream | Package registry (OSV) |
| red hat:LibRaw-devel | 0:0.20.2-6.el9 · Red Hat:enterprise_linux:9::crb | Package registry (OSV) |
| red hat:LibRaw-samples-debuginfo | 0:0.20.2-6.el9 · Red Hat:enterprise_linux:9::appstream | Package registry (OSV) |
| red hat:LibRaw-static | 0:0.19.4-2.el7_9 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| rocky linux:LibRaw | 0:0.19.5-4.el8 · Rocky Linux:8 | Package registry (OSV) |
| suse:libraw | 0.15.4-36.1 · SUSE:Linux Enterprise Software Development Kit 12 SP5 | Package registry (OSV) |
| suse:libraw | 0.18.9-150000.3.17.1 · SUSE:Linux Enterprise Workstation Extension 15 SP4 | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Someone with local access to the system can trigger it.
- No account or password is required.
- A user must open a link or visit a page.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-787 · Out-of-bounds WriteCVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- github.com/LibRaw/LibRaw/commit/bc3aaf4223fdb70d52d470dae65c5a7923ea2a49
- github.com/gtt1995
- lists.debian.org/debian-lts-announce/2023/05/msg00025.html
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5ICTVDRGBWGIFBTUWJLGX7QM5GWBWUG7/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E7TEZ7CLRNYYQZJ5NJGZXK6YJU46WH2L/
- www.debian.org/security/2023/dsa-5412
- www.libraw.org/
Vendor advisories and official records. Exploit/PoC links are deliberately left out.