#VU96489 NULL pointer dereference in texlive - CVE-2023-46048

Vulnerability identifier: #VU96489

Vulnerability risk: Low

CVSSv4.0: 1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-46048

CWE-ID: CWE-476

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
texlive
Client/Desktop applications / Other client software

Vendor: TeX Users Group

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error in texk/web2c/pdftexdir/writet1.c. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

texlive: All versions

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External links
https://tug.org/pipermail/tex-live/2023-August/049400.html
https://seclists.org/fulldisclosure/2024/Jan/65

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.