CVE-2020-23922 Memory corruption in n/a
A heap-based buffer over-read in giflib allows attackers to cause denial of service or disclose sensitive memory contents via crafted GIF files.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2020-23922?
CVE-2020-23922 is a high-severity memory corruption vulnerability in n/a, published on 21 Apr 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
An issue was discovered in giflib through 5.1.4. DumpScreen2RGB in gif2rgb.c has a heap-based buffer over-read.
Weakness: CWE-125
Which versions are affected by CVE-2020-23922?
It affects 2 products.
Products include Apache Bookkeeper, Giflib Project Giflib.
How do I fix CVE-2020-23922?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2020-23922 being exploited?
There is no known exploitation of CVE-2020-23922 in the wild and no public exploit code.
Other vulnerabilities in n/a
- CVE-2019-17571 Deserialization of Untrusted Data in Log4j
- CVE-2017-6891 Memory corruption in GnuTLS libtasn1
- CVE-2020-36230 A flaw was discovered in OpenLDAP before 2.4.57 leading in an assertion failure in slapd in the X.509 DN parsing in decode.c ber_next_elemen
- CVE-2019-19906 Memory corruption in n/a
- CVE-2022-32531 Apache BookKeeper: Java Client Uses Connection to Host that Failed Hostname Verification
Sources
Also known as CLSA-2026-1781348390, DEBIAN-CVE-2020-23922, ECHO-9ef5-8b3d-9947, GHSA-6xhw-5p38-q4xw, JLSEC-2026-815, ROOT-OS-DEBIAN-12-CVE-2020-23922.